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Can anyone tell me what the heck this is? It's sitting in a new Apple II that I just bought. It seems to be a home-made PCB connected to the auxiliary video connector (probably only for power supply), and it seems to generate a 2 Hz signal into the cassette input (I connected earphones to the cassette in and could hear a 2 Hz ticking).
BTW I bought not only this Apple II, but two others, plus a real Apple II monitor, Apple joystick, paddles, an Apple Silentype (really neat little thing, had never seen or heard of it before), etc.
http://www.applefritter.com/node/23791
http://www.applefritter.com/node/23789
http://www.applefritter.com/node/23792
For clarity I'm submitting a link to the image of the home-made PCB I was asking about:
http://www.applefritter.com/node/23788
Jak,
It's just a guess, but it could be an amplifier for making sure that whatever is being saved via the cassette input gets to the cassette with plenty of signal strength.