We found this balanced modulator circuit for DSB and possibly SSB transmissions in US 1980s telecommunications documentation. The diodes can be replaced with equivalents.
This circuit controls a heating element using a triac. Triac must be fitted with a heat sink. We...
This circuit is from Radio Electronics. The magazine no more exists, but the circuit can be...
The gain of the Operational Amplifier in the figure is given by the ratio between R1 and R2. In...