I acquired a Shengyi stereo Audio valve Amplifier off ebay that wouldn't power up, looks like it has been diy'd somewhere along the line
It comprises of 4 x el34 and 2 x 6n2 it looks fairly well made and DIY, but does not work, looks like the mains transformer had a fit and melted several windings,
I acquired another ht transformer that has 550 and 480 center taped windings and 2 separate windings of 5.2 and 6.7 volts presumably the heaters (use one only) its the HT that worries me
I can't find a circuit diagram anywhere online can anybody help with a diagram before I disappear to the great big test lab in the sky or blow my fingers off
Brgds
Steve (south coast UK)
It comprises of 4 x el34 and 2 x 6n2 it looks fairly well made and DIY, but does not work, looks like the mains transformer had a fit and melted several windings,
I acquired another ht transformer that has 550 and 480 center taped windings and 2 separate windings of 5.2 and 6.7 volts presumably the heaters (use one only) its the HT that worries me
I can't find a circuit diagram anywhere online can anybody help with a diagram before I disappear to the great big test lab in the sky or blow my fingers off
Brgds
Steve (south coast UK)
