This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the hard-to-obtain component of our day. It is for reference only.
We found this circuit in a 1977 Radio Handbook. The lamp is the critical component, being 120MB at the...
This circuit was suggested by Philips in 1967 documentation. The circuit receives modulated light and has...
This circuit of a 1969 Electronic Design uses RTL logic. The setting can be adapted to TTL. The...