This is the circuit of a robot published in the June 1992 issue of Radio Electronics magazine. The sensors are used to drive 2 motors with reduction gears. The power is provided by batteries.
The OC30 power transistor is an old type of germanium from the 60s. This amplifier, using this...
PTT or Push to Talk is the control that switches the speak-hear function on a transceiver. This circuit...
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