Heterodyne Mixer (CB4291E)

This is a typical 80's FM radio mixer circuit. The circuit was found in a documentation of the time.

| Clique na imagem para ampliar |

1 MHz Oscillator (CB21981E)
This oscillator with the CA3130 was obtained from an English publication from 1977. The circuit does...
Precision Ramp Generator (CB10042E)
We found this circuit in a documentation from the 70s. Semiconductors are from the era and can be...
Dynamic Compressor (CB20002E)
This sophisticated audio compressor was obtained in a documentation from the 70s. The transistors are of...