This is a typical circuit of a PROM programmer from the 70s. It appeared in the magazine Radio Electronics in 1979. Note that the programming was done manually byte by byte using switches.
This digital mixer uses CMOS integrated circuits. The circuit was published by us in a magazine...
This precision circuit can provide timings from 0.2 milliseconds to 3 minutes accurately. The...
The amplifier presented is ideal for use in small monophonic sound systems, radios or televisions powered...