This is one of the many versions of this type of indicator that the reader can find on our website. This is from Mullard's 1969 documentation. The indicator is 95 uA (100 uA).
This circuit was found in a 1997 documentation. It works as a booster for VHF and UHF signals...
This circuit was found in a 1978 publication. Equivalent operational amplifiers can be used. The...
This 100 kHz oscillator was found in a 1966 Motorola publication. The transistors are of types...