UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Radio Wrangler · 19th Oct 2020, 8:56 am

Threads merged.

Good detective work. That wiring error removed all negative bias from the PX4 so the poor thing would have been locked into carrying maximum current, and that explains the low audio output. I'm glad it seems to have survived and lives to play another day.

This is the best possible outcome!

David

19th Oct 2020, 8:56 am	#21
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,876	Re: F. Stephen Masek's HMV468 restoration Threads merged. Good detective work. That wiring error removed all negative bias from the PX4 so the poor thing would have been locked into carrying maximum current, and that explains the low audio output. I'm glad it seems to have survived and lives to play another day. This is the best possible outcome! David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done