Originally this circuit was created to produce synchronism pulses in TV cameras SSTV (Low scan frequency), however it can be adapted for other purposes. The integrated circuits are common TTL.
Using a CA3130 and a power transistor, this circuit can deliver a current of up to 500 mA with the...
Rechargeable Nicad batteries type AA, C or D can be recharged with this circuit, which is nothing...
We found this circuit in a 1977 CMOS oscillators documentation. The power can be sourced with...