Replacing Tamura GA8027 on Yamaha PM-430

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FelipeCeballos

New member
Joined
Nov 15, 2018
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2
I am restoring a Yamaha PM-430 mixing board and adapting it with direct outs.  Just started and found myself with the first problem.  One transformer on one of the channels is out.  Its a Tamura GA8027, what can I replace this with? I cant seem to find the exact same one anywhere...
Im new to this, so any advice/help is much appreciatted.
 
There was a GDIY member selling some last year.  Perhaps they still have them?
https://groupdiy.com/index.php?topic=67639.msg866117#msg866117

Otherwise save a search on ebay.  I'm sure one will pop up eventually.
 
Just from a little Googling it seems that's not a hard part to replace. A Jensen JT-13K6 would probably be better than what's in there assuming the dimensions are ok. There are other 1:5-ish transforms in that mu-metal can. If the ratios are not precisely the same, you might need to tweak a resistor to match the gain of other channers. Also look at Sowter probably. It looks like Tamara GA80071 is very similar (and can be had on Ebay right now for a very reasonable price). Lot's of options.
 

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