Posted on Jan 9, 2013

This is the simplest of any programmable oscil lator circuit, since only one stable timing capacitor is required. The output square wave is about 25 V pk-pk, and bas rise and fall times of about 0.5 p,s.

Click here to download the full size of the above Circuit.

If a programmable attenuator circuit is placed between the output and the divider network, 16 frequencies can be produced with two HA-200 "s and still only one timing capacitor.

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