X xela_92 Well-known member Joined Jul 5, 2004 Messages 56 Location France Jun 24, 2024 #1 Hello to all, I have there a PSM1 STERLING AUDIO PSU , faulty ( transformer has gone). I'm looking for the voltages and pinout , in order to make another one. Best, Olivier Bolling
Hello to all, I have there a PSM1 STERLING AUDIO PSU , faulty ( transformer has gone). I'm looking for the voltages and pinout , in order to make another one. Best, Olivier Bolling
Khron Well-known member Joined Apr 8, 2010 Messages 5,064 Location Finland Jun 24, 2024 #2 https://gearspace.com/board/showpost.php?p=7930344&postcount=3 ...the Sterling ST69 is basically a GC house branded variation on the Groove Tubes GT67 mic... Click to expand... http://recordinghacks.com/pdf/groovetubes/GT67-schematic.pdf http://recordinghacks.com/pdf/groovetubes/GT-PSM1-schematic.pdf Since the capsule bias voltage divider is a pair of 1meg resistors, very good chance the B+ is supposed to be 120V. Heater's a pretty standard 6.3V. https://frank.pocnet.net/sheets/137/6/6205.pdf
https://gearspace.com/board/showpost.php?p=7930344&postcount=3 ...the Sterling ST69 is basically a GC house branded variation on the Groove Tubes GT67 mic... Click to expand... http://recordinghacks.com/pdf/groovetubes/GT67-schematic.pdf http://recordinghacks.com/pdf/groovetubes/GT-PSM1-schematic.pdf Since the capsule bias voltage divider is a pair of 1meg resistors, very good chance the B+ is supposed to be 120V. Heater's a pretty standard 6.3V. https://frank.pocnet.net/sheets/137/6/6205.pdf