This circuit is used in VHF and UHF superheterodyne receivers. The circuit is from the 1964 RCA transistors manual. Equivalent transistors such as the BF495 can be used.
In the figure we have a voltage / frequency converter circuit that can be used as a transducer interface...
This circuit with the known PLL 567 can be found in other versions in this section and in this...
This peak indicator for stereo amplifiers uses a CA3130. The 80's circuit does not need a...