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Old 5th Jun 2020, 11:02 am   #11
Mullard_Nut_74
Tetrode
 
Join Date: Mar 2020
Location: Sydney, New South Wales, Australia.
Posts: 65
Default Re: How to identify an unknown transformer.

Hi David,
All the Tubes were military spec JAN (Joint Army Navy) and quite interesting to research about that whole thing.
5 x metal can 6AC7
2 X metal can 6AG7
1 X 5Y3GT
1 X 6SN7-GT
1 X 6SN7W
And 1 x really interesting little tube unmarked.
Its either a a relay or some kind of crystal.
It does say Crystal on one side and D-168342 on the other.
Photos of that attached. Tricky little ****** to photograph.
Also 2 x HUGE oblong capacitor cans that are bigger than my wallet.
And unfortunately heavier as well.
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