This circuit is from an old Mullard (Philips) manual with applications using the 555. Choosing appropriately the resistors and the timing capacitors, the ranges obtained can exceed days.
This modulator circuit is nothing more than an audio amplifier that serves to modulate amplitude...
This is a very simple version of heads or tails game using a TTL 7400. The circuit should be...
This circuit was found in an American telecommunications documentation from the 1980s. The circuit...