My CTC-7s and I believe my CTC-9s used glass crystals...Since it's socketed on the 5 it may have been replaced before. It's not uncommon for the crystal to fail on sets of this vintage.
Quote:
Originally Posted by bandersen
Looks like RCA decided to save a few pennies and used a metal can crystal.
I have a few glass types I've saved over the years. Ah, that's better.
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