Unidentified Transformer......HELP!

[onefreeman]

Hello folks. I'm a long time member of the site (although mostly in a lurking capacity), and i'm a little stuck.

A couple of years ago, I stripped down an old knackered JVC AX400 Integrated, for spares.

Inside was a transformer, of the EI frame type. I currently wish to use this particular trans for a chipamp, but am having major problems identyfying its specs.

I can't find ANY information on google about the particular tranny, using both part no and serial number.

I THINK, i may have struck it lucky recently when I found the service manual for this amp, complete with schematic on good old hifi engine.

I want to know if this image gives me the accurate secondary ratings of this transformer.



From what i can gleen from that image, the secondarys are 37v @ 1.8A
and 1.8v @ 60mA.

I've left it wired for UK 230-240v and hopefully that is the right Digram. I just want to make sure that this gives me an accurate reading of the secondarys, being that it is pre-rectification?

If anybody can help to clarify this it'd be VERY much appreciated!

Thanks - OFM

 

[JonSnell Electronic]

That looks correct. 37-0-37 at 1.8A. The 3.6v was for the fluorescent heaters in the display.

 

[JonSnell Electronic]

Should give you about + - 50v after the bridge.

 

[onefreeman]

That's what I figured using the good old fashioned 1.4 rule of the thumb lol

Thanks for your help Jon, Really appreciated. Obviously you have some direct experience of this beautiful (for a late 70's japanese) Integrated.