Frequency meter (CB7383E)

Found in a Popular Electronics from the 90s, this circuit reaches 100 kHz and battery power is recommended.

| Clique na imagem para ampliar |

100 kHz crystal oscillator (CB9638E)
This basic 100 kHz oscillator is suitable for use in calibration. We found it in documentation from the...
Analog Multiplier (CB7930E)
Found in a 1968 EEE, this circuit accepts frequencies from 1 to 1000 Hz and control voltages from 0.1 to...
Photodiode Amplifier (CB13150E)
National Semiconductor suggests the circuit shown in the figure for amplifying signals from two...