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 circuit appears at various points in this section and on this site, with minor variations. It uses the...
This direct detection circuit was found in a 1986 documentation. The output is of low power, but...
Other amplifiers of the series like the MC3301, MC3401 and LM2900 can be used in this circuit. We found...