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HELP me identify 1957 Opco Electronics schematis

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JohnK1973

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I found a 1957 ashtray from Opco Electronics. It has schematics on it. Can anyone tell me what the schematics represent?
 

cyberrat said:
I'm no expert, looks like an oscillator to me..??
Click to expand...

I found out that Opco made ceramics but for a few years in the 50s also made tv components. This is a promotional pipe ashtray with what must be TV schematics

**broken link removed**

John
 

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