This game was found in an old Popular Electronics. The unijunction transistor can be 2N2646. The supply can be done with voltages from 6 to 12 V.
The circuit transistors, found in a 1974 documentation, may be the BC548. The circuit is used in...
This circuit was found in a Linear Technology manual from the 1990s. The circuit makes use of the...
This circuit uses a general-purpose transistor and has waveform adjustment. We found it in an...