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811A/572b tube filament burn in kit

Date Posted By Category User IP
2023-05-26********Tubes********
For Sale, is an 811A or 572B tube filament burn in kit, ready for mounting in an enclosure or on a small board. The tube output voltage is adjustable through a variable resistor. Comes with a used 811A tube, porcelain tube socket, 6 Amp transformer, line cord wired for 120vac and adjustable voltage filament resistor. (120vac transformer terminals are sealed with RTV) The AC Voltmeter is not included. The RCA 811A tube does not show any shorts between all of the plate cap and bottom tube pins, but there is no guarantee on the RCA 811A tube performance. $60.00 plus $16 ship. Pay check or MO.
Also Pictured is a Porcelain 4 pin porcelain tube socket and porcelain plate cap that can purchased for an extra cost of just $10 more for both. Fits 811/ 572 TUBES.

Wanted: Yaesu FC-10 Autotuner

Date Posted By Category User IP
2023-05-26********Tubes********
Wanted: A Yaesu FC-10 to keep my FT-840 company. Must be in good working condition, obviously, with the data cable. Manual and box optional. Can travel up to 100 miles from Boston to pickup or pay shipping. Let me know if you have one for sale and what you want for it.

Wanted Svetlana GU-74B tubes

Date Posted By Category User IP
2023-05-09********Tubes********
seek to buy clean NOS GU-74B Russian tube(s)

what do you have ?

Want to buy 8877/3CX1500 tube

Date Posted By Category User IP
2023-05-01********Tubes********
I am looking for a used, good 8877 tube, needs to be good, but low power output fine. I need for testing a repaired amplifier.

Thanks, Fred KH7Y

Sweep tubes for sale/trade

Date Posted By Category User IP
2023-04-28********Tubes********
I have 5 6KD6 and 8 6JE6 tubes removed from working amps that I converted to the GI7B tube for sale or trade for 811As or 572Bs or all for a usable 3-500z. Can email photos.

Tubes

Date Posted By Category User IP
2023-04-28********Tubes********
I have a bunch of the following to thin out. Email me if you have any questions .

- Batch of 8458 Amperex tubes, NOS. $20ea shipped free in the USA, better price on quantities.

- Batch of NOS 5894B / 8737 tubes. $25 ea shipped free in the USA, better price on quantity.

- 5ABP1 CRT for Scope. 5ABP1 5" CRT for Oscilloscope. Was in a working RCA WO-78 scope, no burns,good output. Additionally verified on a Central Electronics RE-1. $35 shipped anywhere in the USA (I pay the shipping).

- RCA 866A Rectifier tubes: I have a batch of these RCA 866A mercury vapor rectifier tubes. I've tested all of them in a 2-stage process... 1st test on my Hickok KS-5727-L1 to check for shorts. 2nd test, 30 minute filament bake in on my Heathkit Warrior amp, then a full load test on the Warrior. These all are good, and most don't show much usage. The "A" version is the later model with much higher voltage rating and the cathode shield. $25 each, shipped.

- 3CX100A5 (7289) Planar Triode: Used 3CX100A5 (7289) Planar Triode Electron Tube pulled from working AM-3204A / TRC-24 Amp $18 shipped

- GL-5544 Thyratron Tube: These are good pulls from a friend who services x-ray machines as part of
required maintenance. I bought them with intentions of building a thyratron welder, but I'll never get
around to it. I have several. $25 shipped

- 6807 Thyratron Tube: These are good pulls from a friend who services x-ray machines as part of
required maintenance. I bought them with intentions of building a thyratron welder, but I'll never get
around to it. I have 2 or these. $25 shipped

- Amphenol Chicago 49 4 Pin Ceramic Tube Sockets for 866 816, & 3B28. These are good used sockets for 866 and variants, 816, and 3B28 rectifiers. Chassis flange mount, or convertable to through chassis mount by removing clip ring and flange. Amphenol Chicago 49. Lots on hand. $5 each

- EF Johnson Ceramic Tube Socket 122-244-1 for EL6B, 576A, 5544, 6807, and others. Clean, used pulls in great condition. $15 each shipped.

- I have a constantly updated listing of rectifier, receiving, transmitting, and amplifier tubes listed on my server space at :

http://wb4iuy.net/txt/tubes1.txt

FULL OUTPUT EIMAC 8660 / 4CX1500B CERAMIC RF TUBE

Date Posted By Category User IP
2023-04-27********Tubes********
LIGHTLY USED AND TESTED EIMAC MODEL 8660 / 4CX1500B RF POWER OUTPUT TUBE - THE PREFERRED REPLACEMENT FOR THE COLLINS 30S-1 AND ALPHA 8410 AMPLIFIERS AND OTHERS - 2900 WATTS MAXIMUM INPUT IN RF AMPLIFIER SERVICE - RUGGED 2 KW PLUS CERAMIC TUBE - 1500 WATTS PLATE DISSAPATION
Photo IS the actual EIMAC 4CX1500B RF tube. Date code 7426

Tested in my own 30S-1 amplifier. This is my spare. I've kept a couple as spares, but I've never replaced the original tube in 10 years of ownership.

Price: $299. plus $14. shipping (USA). I accept checks, MO, or PP F&F. More photos available - just ask.

JON
K1VVC

Three Rugged RCA 811A tubes full Power

Date Posted By Category User IP
2023-04-22********Tubes********
RCA rugged 811A TUBES (FULL Power), tested on my Collins 30L1 amp with Bird 1000 w slug all three for $90.00 plus $18.00 shipping. .Pay check or MO

B&K 747B TUBE TESTER

Date Posted By Category User IP
2023-04-17********Tubes********