This circuit was found in a Signetics documentation from the 1980s. Next to the figure are the waveforms of the generated signals. The transistor admits equivalent.
This astable multivibrator using two transistor controls two small 50 mA lamps. The lamps can be...
This analog telephone line extension circuit monitors when the line is in use. We found it in the...
This circuit comes from a Gernsback Publications of the 90s. The circuit uses a general-purpose transistor as...