1-quadrant logarithmic converter (CB7333E)

This temperature compensated circuit was found in a Popular Electronics from the 90s. Integrated circuits and transistors are from that time.

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Experimental Oscillator (CB22483E)
The values of the components in this experimental circuit are those of the previous circuit. The...
Electronic Trombone LM3909 IR5634S CB14288E (CB14288E)
The experimental musical instrument with the LM3909 is suggested by National Semiconductor in...
Rectangular Generator 741 (CB14890E)
With the values of the components indicated, the circuit generates a 1 kHz signal. The power...