[AMRadio] FS: TX Tubes, TX Sockets, Audio Transformers,


jeremy-ca km1h at jeremy.mv.com
Wed Dec 12 10:57:22 EST 2007


Put me down for the RF deck also

Carl


----- Original Message ----- 
From: "Don Merz" <n3rht at yahoo.com>
To: "AM Radio List" <amradio at mailman.qth.net>; "BASWAPLIST" 
<baswaplist at foothill.net>; <forsale-swap at mailman.qth.net>; "Glowbugs" 
<glowbugs at piobaire.mines.uidaho.edu>
Sent: Wednesday, December 12, 2007 10:49 AM
Subject: [AMRadio] FS: TX Tubes, TX Sockets, Audio Transformers,Modulator 
and RF Deck


For Sale. All prices plus shipping.

TRANSMITTING TUBES

250TH, Used, good, $45, 2 to sell

Raytheon RK-65 ?? This was Raytheon’s “Super-250TH” with heavy duty plate, 
etc. The socket is the same but the plate and grid caps are larger. Brand 
new. $35

Amperex HF-120, souped-up vt4/211, plug-n-play replacement for 211, good, 
$40

211, used, works, rattle in base, $40

838, untested, rattle in base, might not be good, $30

RCA JAN Metal 6L6, $5

Tung-Sol 5881, $5

3C24, NOSB JAN, $5

Taylor T40, used, good, $19, 2 to sell

Taylor T40, used, good but loose plate cap, $10

USED, GOOD TRANSMITTING TUBE SOCKETS

304TL EFJ 124-213, $20 each, 2 to sell

250TH, 810, VT4, etc., white, EFJ 123-211-1, $4 each, 5 to sell

250TH, 810, VT4, etc., black, General Electric UT54, one has small chip, $4 
each, 2 to sell

100TH, 866A, etc. EFJ 123-209, white, $5 each, 5 to sell

80, many others, 4-Pin Ceramic, pair: $4

832, 826 VHF, EFJ 122-247, pair, $4

AUDIO TRANSFORMERS, All for $60.

Thordarson
21M60A Universal Modulation TF Pri 200-20000, Sec 2000-20000 15 watts
24S60 Output TF 4M-14M CT at 0.35MADC Sec 0.1 to 30 ohms 4 watts
T72A59 Plate and Single Button Mic To Grid TF has instruction sheet.

Stancor
A3879 Output TF Single 10K ohm plate to 4 ohms 5 watts 30MADC
A3873 Plate Modulation TF Pri 8500 ohms PP 100MADC Sec 8000 ohms 100MADC 10 
watts
A4351 Single Button or Double Button Microphone or Line to Single Grid Pri 
50-500 ohms Sec 89K ohms Ratio 1:13.3

Kenyon T-473 PP 6L6’s Ab opr AB2 to Variable Load 450MADC
Jefferson 467-105 Input TF (no specs)
Triad TY-65Z Transistor Modulation Transformer Pri 32 ohms CT 575MADC Sec 
3000-6000 ohms 10 watts

Merit
Two A-3008 Modulation TF Pri 10K ohms CT Sec 4K-10K ohms 10 watts
Two A-2906 Universal Line TF Pri 500-2K ohms Sec 3.2-8 ohms 10 watts
A-2902 Single Plate 10 Watt universal Output
A-2911 Pri 10K ohms 10MA Sec 90K ohms Interstage
A-2920 Driver 2.5:1 Ratio Pri to 1/2 Sec
A-2923 Input Pri 3.2 ohms Sec 5K ohms

Big-Boy Modulator: Homebrew, uses 2 810 tubes and RCA modulation 
transformer. No power supply except filament transformer. Well-made on long, 
narrow steel chassis. With 2 good 810 tubes. Ask for picture. $350

Push-Pull 250TH RF deck. HF, huge bread-slicer cap with plug-in coil. Coil 
is falling apart. Well-made on long, narrow steel chassis. With 2 good 250th 
tubes. Companion to modulator above. Ask for picture. $175

Coming Soon: Chokes and Filament Transformers.
Thanks for looking.
73, Don Merz, N3RHT
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