Balanced Modulator MC1594 (CB14588E)

This circuit is from the Motorola Linear Databook from 1990. The integrated circuit used is uncommon today.

New Low-Power PIC24 “GA7” Microcontroller Family Now Available
New Low-Power PIC24 “GA7” Microcontroller Family Now Available CHANDLER, Ariz., Dec. 12, 2016 — The...
Transmitter Monitor (CB23890E)
The purpose of this receiver is to monitor the signal from a nearby transmitter. It was published in an...
Dual Frequency Oscillator (CB13022E)
The LM567 is a PLL tone decoder that can also be used as a double oscillator as shown in the...