[JMS] transmitter components wanted

Brian K Harris brian.k.harris at philips.com
Wed Nov 9 23:04:20 EST 2005


I am looking for the following components.  Please check your junk boxes. 
Most of the National items are shown in QSTs, ARRL handbooks, National 
catalogs and Millen books of the late 30's and 40's.  If you don't have 
access to these publications I'll send some digital pictures to you if you 
think you might have any of these components. 

A.  (Qty 1) National TMC-100D variable capacitor - dual section for buffer 
plate, 100 pf per section, good fo 3KV
* this is about 6.5 inches long and has 7 rotor plates and 6 stator plates 
in each of the two sections.

B.  (Qty 1) National TMA-40DC variable capacitor - dual section for final 
plate, 40 pf per section, 11 plates, good for 12KV 
* this bread slicer is about 13 inches long and has 6 rotor plates and 5 
stator plates in each of the two sections.

C.  (Qty 2) National NC-150 neutralizing capacitor - for final, medium 
size
* this is about 4" in diameter

D.  (Qty 1) National NC-800 neutralizing capacitor - for buffer, small 
size
* this is about 2-3/4" in diameter

E.  (Qty 1) National XB-15 ceramic final plate coil socket, five pins 
in-line

F.  (Qty 1) National XB-5 buffer plate coil socket, five pins in-line, 
about 3.5" long

G. (Qty 4) National XR-10A ceramic final coil form

H. (Qty 1) National XR-14A ceramic final coil form

I.  (Qty 5) PB-15 coil form mounting bar

J.  (Qty 5) National XR-13 buffer plate coil form

K.  (Qty 5) National FXTB-6 buffer grid coil, 6 prong (these are in metal 
cans and have two small 25 pF variables)

L.  (Qty 4) National GS-1 insulators (1/2" x 1-3/8")

M.  (Qty 4) National GS-8 lead-through insulators for B+, etc.

N.  (Qty 1) Triplett 0-100 mA 326 style
* this is a rectangular faced meter

O.  (Qty 1) Triplett 0-500 mA 326 style
* this is a rectangular face meter

I will pay generously or trade for any of these items.  I have lots of 
hard-to-find trading material including vintage HV transformers and 
chokes, knobs (some Collins, National), National Velvet dials, meters, B&W 
KW coils and pi-networks, tubes (845, VT-4C, 75TL, Western Electric, 
etc.), Bud coils, scads of transmitting variables, mod iron and much more 
than I can list here.  Please tell me what you are looking for if you have 
any of the above parts. 

Thanks for reading.

Brian K. Harris, WA5UEK




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