This TTL circuit generates a 100 MHz signal for digital instruments. The CI is not easy to obtain, being of the high speed MECL type. The circuit is from a 1972 Motorola manual.
This circuit was found in the August 1970 issue of Radio Electronics magazine. It employs RCA's...
This circuit is from 1968 General Electric documentation. It can certainly be adapted for any...
This tachometer from a 1994 publication has a bargraph scale with the well-known LM3914 integrated...