I'm replacing the filter capacitor in a Philco 49-607 by using discrete electrolytic capacitors of proper rating. Anybody have suggestions from your experience? I think I should tie wrap so they won't bounce around but I need ideas. Thanks, Ed
Ed,
this is a portable so I am not sure what space you got there; if possible we try using film caps instead of electrolytics.
Also, when choosing the first filter cap, if it is electrolytic (the one right after the rectifier - there may be a resistor in between, around 80-90 Ohms) make sure it is about double in its ripple current rating vs the current consumption.
I have a similar setup in my Zenith 7G605 and the current out of the rectiifier is about 75mA (could be a bit less in your case) so I chose the one with the Iripple about 150mA.
Morzh,
Thanks for the information and suggestions. I'm only using electrolytic caps to replace the filter capacitors, 60-30-30-10 as I recall. The rest are film caps so not too crowded in the chassis. I'll check the resistor after rectifier/filter caps as you suggest. Good idea. Thanks.
Excellent work!
I re-stuffed the filter can on mine. Was pretty straight forward as long as the original can is intact. I've come across a few that were disintegrating and unusable.
Good luck!
Paul
That looks great! I may give it a try.
Thanks, Ed