Hi guys,,,
I found another little, hot chassis amp (Philco H1410), to modify and rebuild,,, It has a 35W4 rec, 12AX7, and 2x 35C5 power tubes,,,
I have a SS power supply schematic, that was sent to me after I finished the 3tube Zenith amp, and I wanted to try it out...
The plan for this amp, is to replace the 35W4 1/2 wave, with a SS PS, and an isolation transformer and replace teh 35C5 tubes with 50C5's, which should up the power output about .8 Watt...
This amp has a separate OPT feedback winding,,,,
I'll post a schematic, and a couple pics of teh filter caps clipped in, if its allowed.. Its connected to an Isolation Transformer and DBT,,, and I got it working well enough to check voltages...
So, thats my new project, appreciate any help and advice....
Regards,
John
I found another little, hot chassis amp (Philco H1410), to modify and rebuild,,, It has a 35W4 rec, 12AX7, and 2x 35C5 power tubes,,,
I have a SS power supply schematic, that was sent to me after I finished the 3tube Zenith amp, and I wanted to try it out...
The plan for this amp, is to replace the 35W4 1/2 wave, with a SS PS, and an isolation transformer and replace teh 35C5 tubes with 50C5's, which should up the power output about .8 Watt...
This amp has a separate OPT feedback winding,,,,
I'll post a schematic, and a couple pics of teh filter caps clipped in, if its allowed.. Its connected to an Isolation Transformer and DBT,,, and I got it working well enough to check voltages...
So, thats my new project, appreciate any help and advice....
Regards,
John
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