Hi, a friend just brought his trusty Teisco Checkmate 20 with a blown power transformer. He had the power tube sockets rewired to use EL84Ms in place of 7189As two years ago.What power transformer is the best replacement, he needs 240Volts primary? I think the power supply has also to be changed, no cheesy voltage doubler design anymore.Here's the schematic: http://www.larryjohnmcnally.com/Teisco/ckmt20_sch.pdf
Thanks for suggestions and help,
Zouto
Thanks for suggestions and help,
Zouto
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