Booster for preamplifier (CB6290E)

We found this circuit in a 1968 Electronics World. The circuit uses a transistor of the time providing a 16 dB signal gain with a 4 V output.

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TTL Oscillator (CB9097E)
This low frequency circuit was found in documentation from the 1980s. The values of R and C...
Monostable Using the 4528 (I) (CB132E)
The 4528 is a dual-retriggerable monostable that needs only the timing network formed by R and C...
Simple Transistor Test (CB3815E)
This ttransistor test was found in a 1987 documentation. It is a simple oscillator that allows to...