04-11-2012, 07:57 PM
(04-11-2012, 06:50 PM)magicclocks Wrote: I just got a philco console I stated above and when I first got it it had no sound at all. Total silence just wanted to see what I was looking at. I did the preliminary tests that are written in the schematic info and I was getting low volts on the first few test points. Only 200 volts instead of 250 from the rectifier ,a 5u4g. so I went ahead and replaced all the electrolytics and any other resistors it said could be bad . I also found two resistors blown. The r 315 which is listed as a screen dropping resistor 3300 ohm was burned right in half and the r 313 82,000 ohm was reading 1.5 megs after I replace them both. And I restored power the 3300 plohm resistor burned in half in about 5 seconds. I have ordered a new rectifier tube and two new 6v6 power tubes any other advice as to what could cause this I know it's a lot to think about , could it also be a bad 7h7 tube , or should I just start checking and replacing all caps attached to the resistors
http://www.nostalgiaair.org/PagesByModel...013617.pdf
Can't read that crummy schematic. Replace the caps around it and see what happens
Terry