This Schimitt trigger with MOS transistors was found in an old American documentation. Modern equivalent semiconductors can be tested.
This micropower inverter serves to obtain high voltages with very low current from direct current...
This medium wave transmitter uses two tubes and has a good range. L1 is formed by 30 + 70 turns of...
This circuit is a variation of the common grid dip meter, having been found in a 1975 publication on FETs....