This circuit was found in Motorola's 1968 documentation. The SCRs are then replaceable with current equivalents. The lamp is 24 V according to the power supply.
In the figure we have a practical idea for using the good junction of a partially burned...
This amplifier is from Motorola documentation from the 70s. The circuit uses transistors from the...
This positive voltage regulator with 70 V output was found in a National Semiconductor manual from...