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LOMO 19a9 output transformer

Posted: Fri Apr 18, 2014 7:00 pm
by prints_Archive
GreetingsI'm having to build a new power supply for a Lomo 19a9 which contains the external output transformer. I need to find some sort of equivalent for this, does anyone know what the ratio and source impedance needs to be? Thanks

LOMO 19a9 output transformer

Posted: Tue Apr 22, 2014 7:00 pm
by greg_Archive
Lomo info is scarce.If I have a hour some day, I can measure ours.

LOMO 19a9 output transformer

Posted: Tue Apr 22, 2014 7:00 pm
by prints_Archive
anyone?

LOMO 19a9 output transformer

Posted: Tue Jun 12, 2018 7:00 pm
by Vetter_Archive
The Lomo 19A9 output transformer is 3:1 ratio. 420 turns primary, 140 turns secondary. Same AWG for both bobbins.

LOMO 19a9 output transformer

Posted: Tue Jul 10, 2018 7:00 pm
by MTAR_Archive
John Peluso has good LOMO transformers that make great replacements. Not the same model number, but very similar.

LOMO 19a9 output transformer

Posted: Tue Jul 10, 2018 7:00 pm
by scrotescape_Archive
I have a 4:1 and a 5:1 cinemag condenser output to spare...