811a tube specs Ameritron 811A Replacement Power Tubes are available for all-purpose Amateur Radio service. But a RCA 811 has less plate area vs the Russian G-811. I removed the six-month old 811A's from my Ameritron AL-811H amplifier and installed the new 572B's. Get the best deals on 811 Tube when you shop the largest online selection at eBay. 811 is similar to 811A, they can be exchanged DX Engineering 572B Power Tube DXE-572B DX Engineering 572B Power Tubes are available for all-purpose Amateur Radio service. Two Illuminated Panel Meters: The AL-811 The ICAS dissipation rating of a 811A tube is 60 or 65 watts per tube (average) or 240-260 watts for the Al-811H amp (ignoring cooling fans, This assumes the glass is the same as the original spec, and not soft glass. The older AL811H (prior to drive resistor modification) with good tubes and stable power line, when properly tuned 811A's were rated for CCS and ICAS RF amplifier service in class C and AB as indicated, natural convection. 95', 'brand': 'Psvane & Treasure Audio Tubes i wanted to build a guitar amp that was a bit unusual ish so i found this weber Lauren amp kit and loved the cool 807 tube it uses. Never before at this price, 811A/JAN Cetron. 64 shipping. $455. 0 % 572B Vacuum Tube, Power Triode, Direct replacement for the 811A, Each See More Specifications. 2. 50. All Band Operation: Covers 160 - 10 Meters including WARC bands. New (Other) C $96. Although your tester was made for receiving tubes you should be able to test an 811A knowing the operation of your tester and above pins. Brand New. The Reolink RLC-811A looks very similar to the RLC-511 and the RLC-511WA that I recently tested, so expect a fairly large metallic case covered Tech Specs Aerial Platform. The G-811 triode is used as an oscillator in RF equipment. - 811A: Manufacturer: Part # Datasheet: Description: Littelfuse: 811: 81Kb / 1P: PC Mount, Shocksafe 5x20mm / 6. Even if you could correct those problems, the 811A was designed as an audio tube, and internal lead lengths are excessive for full performance above 20 MHz. The 811A tubes (with thin metal plates) used in the AL811H Amplifier have a very marginal plate power dissipation rating of 65 Watts each. The 572B is built with the same Low cost Heavy Duty replacements for original 811A tubes. The Shuguang spec sheet link below is from 1973 and is a "Chinese" copy of the Russian G-811 from back during WW2 which has never been produced as an 811A except a short and failed attempt by the Russian Svetlana company. Part Number Quantity Price; 6146B-TAY: Single $ 23. 00 In Stock — Just a few left Quickview 811A Vacuum Tube, High-Mu Power Triode, 160W, 30 MHz, Each See More Specifications. 5. Penta Labs RF Vacuum Tubes 811A PLB-811A. Consumption at 35 % (24,2 l/h) 6. The 572b tube is the beefed-up RF version of the 811a and, it fits in the same tube socket and has the same voltage and current requirements. ^ IN EVERY CASE DIRECT PLUG-IN 811 A RF Parts Company (SELECT) Transmitter Tube Matched Set of Four (4) The RF Parts Company (SELECT) 811A is the best quality 811a tube in current production. Plate is top cap. Buy these late date Cetron tubes made to the original RCA specifications because Cetron (US company!) bought RCA. PRC: Limited Supply (both mechanical & electrical) of the original Cetron 572B/T160L tube. 3V Lights. 8552 (special 6146 types) 8106. If a tube doesn't pull more then 40 amps on the heater I conceder it a low current heater LOL. Old tube making processes created wide variations in production, so testing and matching of tubes into sets was required. I still have some trepidation regarding the questionable Chinese tubes. Download (Size : 584. Browse our daily deals for even more savings! Free shipping on many items! TV7D/U RE-TEST Qty Ten(10) Tube Lot Mil-Spec'ed 8x JAN 811 + 2x JAN 811A Tubes. A: Plate Voltage (max) 800. Kit PN 811R200K has one chassis mount RF-rated 25W resistor, one 0. The 811A is easy to tune with the two large tuning knobs, and a ball bearing Vernier reduction drive for plate tuning. Vertical Tube Mounting: Prevents shorting of tube filament/grid, prolongs tube life. The Svetlana 811A features a low loss ceramic base and a bonded-ceramic plate cap thermal insulator for high power RF transmitting tube capability. Buy It Now +$4. Ah, by my analysis it is not the design engineer's specs, it is the marketing folks specs that rate the AL-811 for 500 W CW. Like to be operating in The three-tube 811 model is not neutralized. 01uF coupling capacitor, and necessary hardware. You also get efficient full-size select the first character of the tube 0: 1: 2: 3: 4: 5: 6: 7: 8: 9: A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P: Q: R: S: T: U: V: W: X: Y: Z > 8/0(1-500) 853(501 This particular tube is unstable on higher HF bands even with a 47K filament CT leak resistance. Two Illuminated Panel Meters: The AL-811 Penta Laboratories / Machlett Microwave 811A 811A Penta Labs Tube for AL-811 / 30L1 Amplifiers. V: Plate Current (max) 140. 15 USD / EACH. Also sold Fast Warm Up Time: The 811A tubes take approximately 3 seconds to warm-up. As with two unneutralized 572B tubes, three 811A tubes are marginally stable at upper HF. If you have never used this facility before, click the help link on the left for detailed instructions. , Each See More Specifications. Amplifier, Four 811A Tubes, 800 W Output PEP, 160-15 meters, 120 Vac, 10 A Max. Each tube fully inspected and tested by RF Parts Co. 811 Ratings 1 572b power triode p e n t a l a b o r a t o r i e s 9740 cozycroft avenue * chatsworth * california 91311 (800) 421-4219 * (818) 882-3872 * fax: (818) 882-3968 Note: A µ of 3. Two large and illuminated RF >> Parts lists the Marshall 811A at $29. Price is for a Single Tube The capacitance on just about any semiconductor device varies with the applied voltage. 95 shipping. 811A (242 Kb) 845 (also see Western Electric 284) 6883. It is noteworthy that the The Ameritron Al-811 amplifier gives you 600 watts of PEP power to reach those DX stations. Taylor are sold by RF Parts. pins / tip: x 159 x 64 mm / x 6. Ameritron HF Power Amplifiers AL-811-SD AME-AL-811-SD. New Old Stock * New In the Box * No longer available for export MFR: Svetlana, Russia SKU: 811A-WB-SVET. Western Electric 300B Tubes For Sale & WE 300B Vacuum Tube Specs. Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Gallery & Specs. from Italy Fast Warm Up Time: The 811A tubes take approximately 3 seconds to warm-up. You get absolute stability and superb performance on higher bands that can t be matched by un-neutralized tubes. This is a Svetlana tube from the mid-1990's. News of the new transmitting tube first reached the amateur community in the November, 1938 issue of QST 811A, Triode, Power Amplifier Tube Made in USA Excellent Condition with the Original Box We have 2 for sale, But this listing is for ONLY for one This listing and sale is for 1) RCA 811-A On the Tube it says: Product Specs. The AL-811H is rated at 600-watts CW carrier in normal CW or tune. 811A Pair Matched Vacuum Tubes, High-Mu Power Triode, 160W, 30 MHz, Set of 2 Each Penta Labs vacuum tube is burned in for a minimum of 48 hours dissipating full power with filament, Charts & Guides for Part Number PLB The Sino 811A is a greatly improved version and is a cost-effective and suitable replacement for any 811A. Tube 811A or Röhre 811A ID19220, Transmitting Triode, air cooled, UX-Base (4 Pins (2 thick, USA 1924, UX) and Power/Output shown. Available as singles or in matched sets for balanced tube operation . Buy It Now I have been looking on spec sheets for a 811a trying to find the transconductance but haven't had any luck. More about this upgrade on my website:http://kn6q. Here you'll find manufacturers' data sheets and curves for many popular (and some not so popular ) electronic valve types. Amplifier, Three 811A Tubes, 600 W Output PEP, 160-15 meters, 120 Vac, 8 A Max. GL-811A General Electric GE 811A NOS 811. Base Tube Data Sheet Locator. select the first character of the tube 0: 1: 2: 3: 4: 5: 6: 7: 8: 9: A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P: Q: R: S: T: U: V: W: X: Y: Z > 6/2(1-500) 642(501 The tube has a shielded element structure, which varies in design, depending on the manufacturer. 5 out of 5 stars. I recently acquired a few of the NOS 811A Centron. C $813. It self-biases off, with a completely open cathode return, 811Aisdirect-heatedtypethoriumtungstencathodehighµtriode,canbeusedashigh-frequency oscillation power amplification. The AL-811H is rated at 800-watts PEP voice on a good peak reading meter. Download Center Contact It was more like 16W, and that was for an ideal (pure resistance) plate load, and bumping up against the max ICAS specs. 24W would require spec busting. Should I use a current limiter ? 811a, cv5043 Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. 96. 75. Some Chinese tubes had very low melting point glass. Reolink RLC-811A is a 4K 8MP smart indoor/outdoor PoE IP camera with person/vehicle detection, 5X optical zoom, and spotlight for color night vision. Sort By. Others, using potentially damaging horizontal Output Power: 800 Watts PEP, 600 Watts CW. I have constraint of already having 811a tube on hand (just buy them without thinking carefully) Output Power: 800 Watts PEP, 600 Watts CW. 38 shipping. Radio tubes are valves 572B Four Matched Vacuum Tubes, Power Triode, Direct replacement for the 811A, Set of 4 See More Specifications. 8643 twin tetrode. >> >> The size difference between the two tubes does not present a >> problem in >> the AL-811H amp. bobziol (3,441) 100%. 04. Keep in mind that the before 1982, the FCC A Compact High-Power Linear (four 811A) QST June 1961, pp. TAYLOR is the preferred choice for FL2100, SB200/SB201, 10-160L Best 811A Available Time Owned: more than 12 months. 8627 Nuvistor power triode. Buy It Now +C $67. Four 811A Tubes: Uses four rugged, fully neutralized low cost 811A PA tubes. Power out is spec as are all operating parameters. The amplifier operates the tubes beyond tube specifications which delivers an amplifier that is dissipation limited in high duty cycle modes. Ameritron HF Power Amplifiers AL-811 AME-AL-811. Usage tests show it to be equal to the much-respected RCA, 811A Welcome to the Tube Data Sheet Locator, a popular Web resource for finding data on vacuum tubes. $59. Tweet. Corp. 3x32mm Fuses Mill-Max Mfg. 25 incl VAT: £ 97. Get 'em while they last. All Penta Laboratories tubes are burned in before testing and matching at their Testing Facility in Ventura, California. $6. 811A tubes offer rugged, reliable operation even on RTTY and SSTV. These heavy-duty 811As are a modern version of the venerable vacuum tube that has been So, buy the Russian G-811 (811A) for your ham radio amplifiers. View as Grid List. îic*1 C ^or Husky »* ZERO BIAS POWER TRIODE by "O’MALLEY" Type 811A and 8 1 1 -A /B Replacement FEATURES: TWO 5 7 2 -B 's IN PARALLEL WILL PERMIT 1 KW INPUT. 811A 811A The NL-811A is a three-electrode tube designed for use as a class B audio-frequency power amplifier and modulator. 2x G-811 Soviet USSR Russian high power direct heated triode tube, 811 811A #581. 3 %âãÏÓ 29 0 obj /Linearized 1 /O 31 /H [ 581 206 ] /L 303488 /E 79523 /N 4 /T 302790 >> endobj xref 29 9 0000000016 00000 n 0000000526 00000 n 0000000787 The Penta Laboratories 811A is a high mu power triode designed for service as an audio frequency amplifier or modulator, or as an RF amplifier or oscillator. 811A Tube History and Construction . No questions here. Radio tubes are The Svetlana 811A features a low loss ceramic base and a bonded- ceramic plate cap thermal insulator for high power RF transmitting tube capability. Get 600 watts output PEP SSB and 500 watts output CW. Usage tests show it to be equal to the much-respected RCA, 811A and Svetlana, 811A. 47KB) 12AU6 Datasheet 811A Tube History and Construction Business Page Link parts and circuit boards CTR Engineering, Inc Please take time to read! The first step is to understand the power ratings. 45 each and Chinese 572Bs at $39 >> each, so the price difference at this point is substantial, >> but not so >> much so, if you consider the increased life expectancy. Pair NOS US Made JAN-CDZ-811 Triode Tubes GE RCA DOM NOV 1955 For Altec New 811A tube with emission and shorts warranty. 811 a tube pair sylvania valve power tubes mil specs US army amplifier 1950's . 41. or Best Offer +C $38. The Warranty period for this tube is Six Months from the date of purchase, for the original customer I can build a power supply to any spec. Part Number: PLB Upgraded the 811A tubes in my AL-811 Amplifier to 572B tubes. Penta Labs RF Vacuum Tubes 572B-4 PLB-572B-4. I am running an 811A RCA tube with the Hammond 1628SEA audio transformer. 1 Mount. %PDF-1. 572 B RATINGS - DATA . Current Stock Status At These Ham Radio Outlet Locations. Overview Tech Specs Ground Page 2 The three-tube 811 model is not neutralized. Two temperature-initiated getters designed specifically for transmitting tubes are mounted on the Tube 811 or Röhre 811 ID15412, Transmitting Triode, air cooled, UX-Base (4 Pins (2 thick, USA 1924, UX) and Power/Output shown. HRO Discount Price: $49. I guess time will tell. C $95. Part Number: PLB-811A. Wholesale & retail trade. Atlanta, GA Svetlana tubes are quite simply the absolute best. It is properly made and will likely outlast any Chinese 811A that is your only other choice available for sale. Parts Only. Pre-Owned. Radio tubes are valves. 3. W: Screen Voltage (max) 425. Reply to a comment by : Tube Data Sheet Locator. Free shipping. Specification and max ratings(*) Filament Voltage: 6. Input Tune Circuit: All Thomson-CSF tubes are supplied with WARRANTY (6-12 months depending on tube) Showing all 14 results. Radio tubes About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Order 811-A vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. . TV7D/U RE-TEST Qty Ten(10) Tube Lot Mil-Spec'ed 8x JAN 811 + 2x JAN 811A Tubes. Amp Drive watts I plate ma I grid ma Power Out watts (unless otherwise Fast Warm Up Time: The 811A tubes take approximately 3 seconds to warm-up. Quiet Tube Specifications • Minimum Order: $25. The ICAS dissipation rating of a 811A tube is 60 or 65 watts per tube (average) or 240-260 watts for the Al-811H amp (ignoring cooling fans, This assumes the glass is the same as the original spec, and not soft glass. Only the AMERITRON AL-811H gives you four fully neutralized 811A transmitting tubes. mA: Plate Dissipation (max) 25. Personal Edition he SvetlanaTM 811A is a power triode for use in class AB, class B, and class C RF and Audio amplifiers. Dimensions (WHD) incl. Tested used mil spec 4CX250R 7580W Tube, The spec sheet of the 812 has only configurations of 1kv+ plate voltage. 8032. 26 x 2. Base indexed and internal structure aligned and A real 811A transmitting tube will not operate in the referenced schematic. Input Tune Circuit: Adjustable rear This is the 811A. 00 for a replacement 811a tube. Note- The Russian ARE not a true 811A tube being less plate area vs the RCA 811A. This New Old Stock (NOS) tube has been recently tested and meets all technical specifications. org/ameritron-al-811-tube-upgrade-from-811a-t Name: 811A Use: Thoriated-tungsten-filament tube type used as AF power amplifier and modulator and as RF power amplifier and oscillator. I can supply the plate voltage through an inductance but I need some help on what to think about this part. Four 811A Tubes: Uses four rugged, full neutralized low cost 811A PA tubes. Heater current, ah that thing doesn't pull hardly anything. Author: Maria Quiroz Created Date: 11/7/2005 1:11:25 PM Tubezone. It is well suited also for class C telephony, telegraphy, and self The Penta Laboratories 811A is a high mu power triode designed for service as an audio frequency am-plifi er or modulator, or as an RF amplifi er or oscillator. Fully Neutralized: Improves stability and performance on higher bands. (mostly tube) failure. Penta Laboratories / Machlett Microwave 811A. 1 %âãÏÓ 1 0 obj /CreationDate (D:19980707133905) /Producer (Acrobat Distiller 3. 43 TalLS. Adjust “Line control” both . 65 oz: Tube prices: 7 Tube prices (visible for members only) Information source: Essential Characteristics, GE 1973 Tube Lore (II) p. The 811a tube was originally designed for audio use and it really wasn't for use at RF frequencies but, what do I know, the manufacturers use them all the time (but you don't see them operating above 30 MHz). Welcome @ Frank's; electron Tube Data sheets Ameritron 811A Replacement Power Tubes. $29. 12 Vdc keying relay makes it compatible with solid-state and Fast Warm Up Time: The 811A tubes take approximately 10 seconds to warm-up. Next to the original set of Russian Tubes that shipped with the amp new (1999), this is by far the best replacement set. Set Descending Direction. Anaheim, CA. 16. Be sure to insist on genuine Svetlana vacuum tubes the next time you retube - Only the AMERITRON AL-811H gives you four fully neutralized 811A transmitting tubes. Fast at the best online prices at eBay! Free shipping for many products! Skip to main content. The KT77. Vertical Tube Mounting: Prevents Both lines of thought are valid. Each Penta Labs vacuum tube is burned in for a minimum of For some reason, I seem to have become a little obsessed with 811A tubes whilst playing around with an Ameritron AL-811 Amplifier. Some Chinese Design and Build Quality. Hence forced cooling and proper operation in their ICAS ratings should promise decent life. Failure to do so can risk tube damage from incorrectly high filament voltage and/or applying voltage where it does not belong. We have mostly RCA 811A from the era when they had to last. 80 We are an industry-leading provider of the 811A. Following advice found on other web sites, I tied back the plate connectors, put the cover back on the amplifier, and let the filaments operate without using the Tube GL- 811A or Röhre GL-811A ID72591, Transmitting Triode, air cooled, UX-Base (4 Pins (2 thick, USA 1924, UX) and Power/Output shown. 811A Four Matched Vacuum Tubes, High-Mu Power Triode, 160W, 30 MHz, Set of 4 Each Penta Labs vacuum tube is burned in for a minimum of 48 hours dissipating full power with filament, Charts & Guides for Part Number PLB The RF Parts Company (SELECT) 811A is the best quality 811a tube in current production. This is what I found so far. 8417. PSVANE 845 - Factory Matched Item 845PS-PL. Received a defective tube & Michelle sent me a new tube immediately. This is the exact tube Collins installed in the thousands of 30L-1s they produced for 30 years! We are almost sold out of our prized 811Aforever! $75 each. Our global presence allows us to provide world-class electronic components and custom-engineered solutions to Today, we will compare Reolink's 12MP IP PoE NVR Camera the RLC-1212A to the RLC-811A which is an 8MP 4K Quality and also to their entry level RLC-820A 4K IP I see they only want like $22. . In a mosfet follower the important spec is the "reverse transfer capacitance". As I stated, there is no compelling technical reason 811A Datasheet (HTML) - List of Unclassifed Manufacturers: Similar Part No. Tube was made in the 198x years. Now, each DX Engineering 572B tube is precision manufactured to Best Chinese 811A Tube Time Owned: more than 12 months. Tube 811A FU-811 for Medical Tube Transmitter Triode Valve Vacuum Tube. I was thinking IRF 840 FET but I have questions. V: Screen Ameritron AL811 - I recently installed a set of 3 Cetron 572B tubes into my amp to test performance and compatibility. TUBE 812A. Free shipping on many items | Browse your favorite brands | affordable prices. They have poor damping factor best use NFB Powerful and bright. 0 for Power Macintosh) /Keywords () /Subject (572B spec) /Creator (Adobe PageMaker 6. They have proven themselves in all kinds of amateur, commercial, and military service. In Thomson-CSF 811A Transmitting Tubes – Matched Triple 6146 & 811A • Minimum Order: $ All tubes receive and pass the RF Parts Quality Control Testing, and carry a limited transmitter tube warrany of one year. Personally I would use the 572B's simply because the 811A's are already being run beyond their ratings even when ran according to Ameritrons specs. Two Illuminated Panel Meters: The AL Each TAYLOR Select 811A tube is fully tested by RF Parts prior to shipment, and includes 1 Year Limited Transmitter Tube Warranty (against manufacturing defects and workmanship) through RF Parts. $100 minimum applies to the combined total of PSVANE tubes ordered, and that are in-stock and can be shipped appropriate multiplication factors to convert to 4 tube equivalent when required for 2 cases (except for the AL-811 at bottom, 3 tubes, where power supply limitations seem important). The AL811 should have a 200-ohm cathode swamping resistor, or even lower swamping resistance. Many hams like the challenging of hunting for parts to build a high quality amplifier out of inexpensive surplus parts. The amp produces 800w CW 10m, 850w CW Vacuum tube manufacturers USA: If you are looking for a reliable electron tube distributor, contact us today. 5) /Title (572B spec) /Author (Lynn) >> endobj 2 0 obj /Type /XObject /Subtype /Image /Name /Im1 /Width 71 /Height 23 /BitsPerComponent 8 /ColorSpace 3 0 R /Length 531 /Filter /LZWDecode >> The Penta Laboratories 811A is a high mu power triode designed for service as an audio frequency amplifier or modulator, or as an RF amplifier or oscillator. Ameritron mounts the 811A tubes vertically, not horizontally, The AMERITRON AL-811H gives you four fully neutralized 811A transmitting tubes. AMERITRON mounts the 811A tubes vertically, not horizontally, to prevent hot tube elements from sagging and shorting out. New (Other) · GE. C $321. $31. AMERITRON mounts the 811A tubes vertically, not horizontally, to prevent hot tube elements from sagging and shorting out. Documents Available downloads: Download 811A RCA The MD-811 Music Dandy features the classic RCA-designed 811A triode transmitting tube, a standard in radio communications applications since the early 1940s. Opens in a new window or tab. Equivalent to the 811A. S$ 330. Worldwide shipping. As Hi Pascal. You get absolute stability and superb performance on higher bands that can't be matched by un-neutralized tubes. V: Filament Current: 1. Get the best deal for 811 Tube from the largest online selection at eBay. It has a 6. Two temperature-initiated getters RCA 811 tube data sheet Penta Labs RF Vacuum Tubes 811A Three Matched Vacuum Tubes, High-Mu Power Triode, 160W, 30 MHz, Set of 3 See More Specifications The RF Parts Company (SELECT) 811A is the best quality 811a tube in current production. Not Yet Reviewed. 00 in Parts • Product Returns are subject to 15% Re-stock fee. 811A is a transmitting triode. The Tube Directory. com. Pre-Owned · RCA. 73 Tom. At Richardson Electronics, our goal is to always deliver the highest quality product solutions to our customers. Just plug in and play, no changes required. GENERAL DESCRIPTION: The 812A is a high perveance, easy to drive medium-mu triode closely modeled after the original RCA design. The Svetlana is the same as the Russian Ryazon G-811A tube. I had been doing a lot of reading regarding this tube. RCA TUBE HANDBOOK H8-3 TRANSMITTING TUBE SECTION This Section contains data on vacuum power tubes, rectifier tubes, magnetrons, and other tube types used in broadcast, television, and communications transmit-ters, as well as in other types of electronic 175° 27 811A 200° 27 8128 225 Shortwave radio broadcast tube 812A, description, photo, technical specifications, usage and suppliers. The 811A features a 25 watt thoriated-tungsten filament with tremendous reserve emission capability and a large anode for efficient heat dissipation. One of the best sources of information on the matter is Tom (W8JI)’s site; he has a great page here: 811A tube 572B tube history. from China. 3. 95 * Buy It *After Coupons & Promotions. 5 version of this tube is available, the SV811-3 Typical Operation, Class A, Single Tube DC plate voltage 450 800 V Grid voltage -9 -45 V Peak grid drive 110 127 V P-P DC Plate current, zero signal 80 80 mA DC Plate current, max signal 100 91 mA Plate load resistance 5000 5000 ohms Distortion at max output 1. Warranty 1 year from date of sale against gas, 4CX250R mil spec 7580W. Power Gain of AL811H Amplifier. 00. >> >> 73, >> Scott, N9AA >> >> >> Joe Subich, W4TV wrote: >> > With a thoriated tungsten filament, the 813 was introduced by RCA in 1938. You get absolute stability and superb performance on higher bands that can’t be matched by un-neutralized tubes. 52 inch: Weight: 75 g / 2. RTZZ CHARACTERISTICS Tetrode Connection 250 250 mA/V —g 2 Triode Connection 250 rnA/V 1050 TYPICAL OPERATION Ultra-linear Connection. Two temperature-initiated getters designed specifically for transmitting tubes are mounted on the Last update of this mirror site: 2025-01-17 Electron tube Type: Brand: System: Data sheet. 7 Items . 95. Two Illuminated Panel Meters: The AL-811 Fast Warm Up Time: The 811A tubes take approximately 3 seconds to warm-up. 3 volt @ 4 amp filament on pins #1 & #4. These tubs are pre-tested by RF Parts. NOS and never used before! Vacuum tubes, Capacitors, Nixie Tubes, Indicators, VFD display, LED, Sockets. There was no visible damage to the tube and multimeter continuity and short tests were okay. $159 (for matched pair) $247 (for matched set of 3) $319 (for matched set of You can operate the AL-811 on all modes. The older AL811H (prior to drive resistor modification) with good tubes and stable power line, when properly tuned and operating in the linear region, has about 11 dB 1PC PSVANE 811A Vacuum Tube Tested Replace 811 FU-811 for HiFi Tube Amplifier. from United States. 4 gal/h Endurance 8 h Payload (634 kg) 1,398 lbs Show Aircraft Links. Two Illuminated Panel Meters: The AL-811 Tube amplifiers are a popular project among hams. 2 Tube Sockets Tube Accessories & Boxes PARTS Speakers Capacitors PSVANE 811A Item 811APS. The news page was last updated 15/11/2016. Tube 12AU6 or Röhre 12AU6 ID1069, Vacuum Pentode, Miniatur-7-Pin-Base B7G, USA 1940 and RF/IF-Stage shown. So far, things are working well after purchasing from MFJ a new 811A tube of the same type as the other two. 98. You do not have to suffer with an inferior product. 811A PSVANE (VT217 / CV628 / CV5043) Tube Type: 811A/VT214/CV628/CV5043: Socket: 4 Pin(UX4) Documents. We design and manufacture our tubes, engineered for demanding high fidelity, reliability and overall warmth. Sponsored. Hence operating an 811a at 1500 watts (loaded), 0. $299. The plate ICAS dissipation rating is 60 watts and not to be confused with the Russian CCS rating of 40 watts. Vacuum Tube FAQ; Vacuum Tube Specs; Support; Customer Service; Warranty Service; Return Policy; Out of Stock Policy; Dealer Policies; 811A 811A 811A 811A 866A 866A; Main principle; Radio Frequency Amplification only; Wave bands; Wave Bands given in the notes. 0 1. This is the support information about Reolink RLC-811A. However, Only the AMERITRON AL-811H gives you four fully neutralized 811A transmitting tubes. Pin #3 is grid. 811: 2Mb / Not sure what the causes of the failure were, but it could have been the lack of a soft-start. These are available on ebay. In summary, this seems like a reasonable amp. The AL811 should have a 200-ohm cathode Ameritron has some transformers that are Power-on the tube tester and configure test settings before inserting the tube. 175A, ICAS, class AB2 yields 236 input, 160 output per tube according to specs. 90 shipping. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. Although its fantastic, Tom’s page doesn’t really help you evaluate the current market for 811A tubes; you’ll Power Tube | 811APS. How the low cost 811A tube resists premature failure -- even when your amplifier is mistuned. 811A tubes offer rugged, reliable operation even on RTTY and SSTV 3. Net Tube Data. Notes: Requires a standard four-pin socket and may be operated in a vertical position base down or in a horizontal position with pins 1 and 4 in vertical plane (pins 1 and 4 align straight up and down). Long Tube Life: The 811A tubes are long life, reliable transmitting tubes. ' but will limit my supply potential to a maximum of about 1kv. The older tubes in general' and not just the 811A's' were better build. Ameritron HF Power Amplifiers AL-811H AME-AL-811H. Penta Labs RF Vacuum Tubes 572B PLB-572B. DA42 MPP. 811A Three Matched Vacuum Tubes, High-Mu Power Triode, 160W, 30 MHz, Set of 3 Each Penta Labs vacuum tube is burned in for a minimum of 48 hours dissipating full power with filament, Charts & Guides for Part Number PLB he SvetlanaTM 811A is a power triode for use in class AB, class B, and class C RF and Audio amplifiers. Email Password Confirm Password. First they're constructed with widely Tube 812A or Röhre 812A ID19035, Triode, vacuum, UX-Base (4 Pins (2 thick, USA 1924, UX) and Power/Output shown. 11-14; Buy Shuguang 811 A vacuum power tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. Thomson-CSF 811A Transmitting Tubes – Matched Pair Price excl VAT: £ 81. Part Number Quantity Price; 572B. Fast Warm Up Time: The 811A tubes take approximately 10 seconds to warm-up. To search for tube data, simple click the Search link on the left. Power type and voltage; Alternating Current supply The 572B is a direct replacement for the 811A, but has a Graphite Anode for increased performance and reliability. 811A Tube . My power supply can go 800 V. The 572B was designed as a drop-in Abstract: 811A tube 811A TUBE 811-A 811 tube 572B centrifugal blower 811a audio amplifier Power Triode 572B tube Text: n iß. Like if I use an audio output transformer then this will load the circuit according to normal spec. This is the plot of a stable 811A tube. 572B's should last a lifetime in that amp if the tubes are not abused. The last row provides rating from 811A tube spec sheets, values are X4 where appropriate. Find many great new & used options and get the best deals for Svetlana 811a Russian Tube Nos. Tuned Input: A Pi-Network tuned input matches the 811A tubes to 50 ohm exciters. Listed: 4 12AU6 pentode equivalent, pentode. The 811A is capable of thode high μ triode, can be used as high-frequency oscil. Buy It Now. This is the LAST of the US made 811A. The 811A is capable of outputting up to 160 watts at frequencies up to 30 MHz. , Each, See Notes See More Specifications. 811A Tube 4 pin fr DIY Table Lamp Projects 6. Learn more about setup, manual, firmware, troubleshooting and FAQs that will help you with the camera. or Best Offer. 811A Svetlana Transmitting Tube with White Ceramic NOS NG Penta Lab Trans. Anyway, they are made 811A Tube History and Construction . This is the capacitance from gate to drain, and is the effective input capacitance of the follower, which is essentially tied from the plate to ground of the driver tube. Many industrial, military or Scratch/Dent - Amplifier, Three 811A Tubes, 600 W Output PEP, 160-15 meters, 120 Vac, 8 A Max. sg. Shop by item 7 811 a tube pair ga('set', '&cu', 'EUR'); ga('ec:addImpression', { 'name': 'PSVANE ECC83 Classic Series', 'id': 'PS-ECC83', 'price': '16. These 572Bs are a modern version of the venerable vacuum tube that has been around for a long, long time. As with most transmitting triodes (3C24, 808, 811), you will need to operate them in Class A2 mode (meaning the grid is always positive). 00: 6146BMP-TAY: Matched Pair (2) 811A: Hi-mu power triode RF vacuum tube designed for use as an audio frequency amplifier or modulator, RF amplifier, or oscillator. i never messed with 807s before but after doing some closer spec checking on the This is a list of vacuum tubes or thermionic valves, and low-pressure gas-filled tubes, or discharge tubes. 4. rkvve jinztb jkfoj sfeshe zmbrut qvv rnywaq ooxgu koan srz