This circuit is from an English documentation from 1969. The circuit can be designed based on modern equivalent transistors. Diodes are general purpose types.
This circuit is from a 1968s Motorola documentation. The load can range from 10 to 100ohm and the...
This circuit was found in a 90s Popular Electronics. The frequency is determined by R3 and C1 that...
e find this circuit in documentation for radio amateurs of 1974. The unijunction transistor can be...