This basic TTL watch and minute clock circuit was found in European documentation from the 1970s. The power supply is not included and is given in CB19635E. The circuit uses common anode displays.
We found this circuit in a component manual from the 80s. R1 has values between 1k and 10k. R1 has...
This power supply for the ion generator in the previous circuit does not need to be regulated, providing...
This small power amplifier makes use of an output transformer given its design time. In fact, the...