[ForSale-Swap] strange olde tubes FS
Eric A. Jones
ejones at hiwaay.net
Mon Feb 11 12:08:55 EST 2008
de N4TGC Eric A. Jones, 6537 County Road 61, Florence AL 35634 h.
256.764.0675
There's a lot more where these were lurking, but I'll start with a
small lot:
one each Eimac 304TH (VT-254) and 304TL (VT-129). Originally used in
military radar-pulse and other oddities such as ART-3 & BC-912; good
for up to 1 kw Ham use. Envelope contains four 75TH in parallel on a
large 4-pin base with side and top caps. Filaments check good - can't
test otherwise. $10 each
Eimac 327-A (aka 5C37) ~225 mc UHF oscillator triode. Unique 2-pin
T-4AD (4BC) base with also 2 pins out opposite sides and one top pin.
Good fil. req. 10.5v @10.7a 100 watt plate, umho 31 - $10
RCA 826 UHF (250 mc) tx triode, base 7BO (same as 829B, etc.) 7.5v, 4a
fil., umho 31, 60 watt with cooling - $10
3B28 xenon-gas rect., fil. 2.5v, 5a, 10 kv PIV, 1/4 a (or 5 kv @ 1/2 a)
upgraded 866A - base is loose - $5
(two) CX-380 - the balloon-envelope, Cunningham v. of the #80 full-wave
rectifier, fits and works the same. Test good on Hickok 752A. $15
each, guaranteed
NOSIB (new, old-stock, in box) CK1006 full-wave gas rect. fil. 1.75v@
2.25a or 2.5v @ 2a good for 200 ma @ 1.6 kv - $5
5-pin mystery balloon tube with top cap. Numbers gone - looks like a
triode inside. Dirty, cap loose. Good 2/2.5v fil on pins 1,5; gives
purple flash when checked as #33 or #36 - needs gas cooked off or is
just bad. FTGH
Super mystery tube: has unusual, smaller-than-normal octal base, tiny
envelope about 1" tall. Innards unrecognizable: looks like a heater
coil and two arc-posts (?!) FTGH, but I'd like to know what it is ...
made by Raytheon; numbers 260 over 713 ink-stamped on base.
That's all for now. e
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