FET simple mixer (CB8760E)

We found this simple mixer in a 90s Radio Electronics. The used FETs are still common. The inputs are high impedance.

Sequential Indicator (CB20342E)
This circuit was found in documentation from the 80s. The circuit did not include resistors from...
Operational AC DC Converter (CB15807E)
This circuit used in instrumentation is suggested by National Semiconductor, now Texas Instruments and...
1.2 to 25 V x 3 A Variable Power Supply (CB1578E )
The source shown in the figure provides output voltages in the range of 1.2 to 25 V with currents up...