This circuit with its light source was found in American documentation two years 70. Or transformer of the type found in small transistor radios of the time. The transistors are general-purpose.
This circuit was found in an old 1980s valve documentation. The circuit can directly replace a...
This circuit is from an 80's component manual. However, the circuit may be of a modern equivalent...
Found in an Electronic Design from the 90s, this circuit makes use of a PLL CMOS. Values for...