Quote:
Originally Posted by Einar72
Don't spend yourself in a hole with all these caps - capacitor mfg. techniques today produce a product far more stable and long-lived than the old wax-dipped or molded-case paper caps. These modern caps are often far better than what was available (or used) in the 30's or 40's. If you can find micas in the reddish dip at tube voltages, go for it. But you are repairing old radios, not missile-guidance or heart-pacemaker devices. Just buy (as I stated previously) temp-stable ceramics for RF circuits if you can't find the value you need in mica. Unless you listen to single-sideband hams on the 20-meter band, you won't be bothered with drift issues.
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I guess I am alittle confused here. Fair radio has new manufacter ceramics but how do I know that they are temp-stable? I am putting more effort into this set because it is my first FM set and its a capehart and high fidelity."Maybe" I am sweating the small stuff too much but in my area higher end sets just don't come up for sale often. I am just trying to "get it right" I have been working on radios for over a decade but this is the best radio ( and the most complex) I have come across.