This circuit is from a 90s Radio Electronics. The resistors must be precision types and the transistor is a general-purpose type. The operational admits equivalent.
This circuit, found in a 1978 publication, converts 5 V into a symmetrical 15 V output under low...
This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the...
ECL logic circuits can operate at very high frequencies. This circuit was obtained from a 1977...