• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

transformer

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Jump to Latest
U

udtman

Member
Joined 2006
recently bought via ebay a small tube amp that looks very close to a heathkit UA-1 schematic wise that is.
TUBES ARE
6BQ5 x 2
12AX7 x 1
6an8 x 1

However, there is absolutely no label as to who made this or a manufacturer
It is obviously a kit of some type
The only markings are on a piece of the assembled unit
PA92-9 also a number 283 seperated by the power cord

Power transformer has PA-227 and 798852 stamped on it
measured output was green pair: 162.7 volts
7.6 volts

Audio transformer has pa-228b, 138913, and 28536 stamped on it

I have looked thru every old transformer catalouge i can find and cant see either of them listed anywhere

If anyone can find out some info on the transformers like who made these things, i would appreciate it very much

Thank You

Mike
 
U

udtman

Member
Joined 2006
transformers....

Mario, these are beautiful transformers, but way over my head and totally outclasses anything i have or work on, the info is very much appreciated.
However, im just trying to find the specs for what i do have atm,which i fear will be impossible since all the info i have is allready posted here. i will TRY o post some pictures asap.

Thanks again, but im way out classed on this one.
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Top Bottom