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Old 12-09-2016, 08:03 AM
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Findm-Keepm Findm-Keepm is offline
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Join Date: Jun 2007
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Sure - any low gain (hfe<500) NPN should work. If you get any ringing, try ferrite beads on the base and collector leads.

I built my 2N2222A inverter on a double sided PCB, with the bottom as a ground plane, and "Manhattan" style construction on the top. The circuit I used was in "Circuits Cookbook" from 1967....

The whole circuit takes advantage of the common emitter configuration for inversion - and - the common collector configuration gives you the non-inverted video on the emitter. Two in one!

https://en.wikipedia.org/wiki/Common_emitter
https://en.wikipedia.org/wiki/Common_collector
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