Suggested by Mullard in a1969 documentation, this circuit generates the erasure signal for tape recorders of the time. Transistors can be modern equivalents like BD136 and BD136.
Binary Indicator (CB6700E) This circuit was obtained from old documentation but can be used as a...
We found this precise crystal oscillator for the 144 MHz band, depending on the crystal used. The...
This circuit allows you to find two diodes with equal characteristics. The circuit was found in a...