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Hi Folks!I bought a pair of Tamura F-475 output trannies on Ebay to build a 2A3 SET amp.
It has a weird circular connector... and no instructions / pinout...
Can anyone help me with a pinout? Also can I just solder the pins? I do not have the female connector.I googled but cannot seem to find a pinout diagram.
Thanks!
Edits: 10/21/15Follow Ups:
Should have a bottom metal label? Also look at this:http://www.hifido.co.jp/KW/G/P0/A10/E/10-10/S0/C15-00150-58000-00
looks like it is labeled to me.
It has a NFB winding too.
Yes, solder to what is there.
Edits: 10/21/15
Thanks! I am blind! Did not see the letters in black until I watched with a magnifying glass.
Now it is clear to me that I will connect Speakers to C and 8 (I tested and this is clearly the secondary winding).
But I still have the same question... where does B+ and plate go connected to? Only E and NF have continuity... so I guess that is the primary winding?
Thanks and regards!
look closer:
B = B+
SG = screen grid
P = plate
So in my circuit, which is a SET I connect B+ to B and P to the 2A3 plate and that's it right?
I have measured resistance and there is 555 Ohms between those 2.
Thanks again!
There's two separate primary windings.
Look at the schematic here:
http://noguchi-trans.co.jp/digitalcatalog/main/tamura.pdf
it shows it all.
This is great info. Thank you! Now it is clear. I will use B and P only!
Looking at this picture it looks like a push pull transformer.
Are the markings the same for the PP and the SE transformers but only one set (B-SG-P) internally connected for the SE transformers?
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
That is correct. It is a transformer for SE. It is way too small for Push Pull anyway.
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