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First IC you came in contact with?

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ozcar:
I can recall making an FM receiver using an RCA IC, maybe CA3011(?) for the IF amplifier. I don't know exactly when that was, but probably after making the electronic dice mentioned in another thread here, which used RTL ICs.

I made the dice 50+ years ago, around the same time as I invented the LED. Put enough current through a point-contact germanium diode, conveniently packaged in transparent glass, and yes, it emits light. It did not least that long, but then that gave me the opportunity to also invent the SED and NED (Smoke and Noise emitting diodes).

rfclown:

--- Quote from: ozcar on January 28, 2021, 06:15:13 am ---..., and yes, it emits light. ...

--- End quote ---

Reminds me of a teaser Bob Pease wrote in his Pease Poridge column. If you zener the emiter base junction of a NPN, you will measure a negative voltage on the collector. He didn't say why until a later issue. The answer was light. I didn't like the answer, so I marched to the stock room at work, grabbed an NPN that was in a can package, cut the top off, and looked at it under a microscope.... Damn! Red light.

firehopper:

--- Quote from: mikeselectricstuff on May 14, 2015, 12:40:14 pm ---LM3909 LED flasher. This was back when LEDs were cool, flashing ones more so, especially from a 1.5v battery!

--- End quote ---
same here. purchased from radio shack.

rob.manderson:
RCA CA3012?  Not sure of the part number any more but it was one of the RCA CA series, buried in a TV set FM strip in 1971 or thereabouts.

faraday:
My first IC from USSR

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