Found in EEE documentation, this circuit can have the duration and frequency adjusted separately. SCRs can be modern equivalent types.
This circuit is used in the analog part of the telephone lines. The same circuit can directly...
Ohmite TGHD non Inductive High Power Resistors Available in SOT-227 enclosures, these Ohmite...
This conventional astable uses two NPN transistor and was found in a publication of the year 1968. The...