This audio configuration of televisions from the 1960s was found in a Mullard transistor reference manual. Transformers are the critical components.
The output voltages of this power source are selected by a switch according to the capacitors. The...
We found this oscillator in a documentation from the 70s. The FET can be MPF102 and the crystal is 1...
This divider by 8 is synchronized because it is implemented based on TTL or CMOS logic according to the...