Audio amplifier 741 (CB20478E)

This low power audio amplifier was found at 1992s Popular Electronics. Transistors are general purpose common types.

Gain 100 with the 741 (CB902E)
This AC amplifier using the 741 operational amplifier uses a dual supply from 5 to 12 V. The input...
Monostable Using the 4047 (I) (CB134E)
The 4047 is a monostable/astable CMOS multivibrator. The basic con- figuration is triggered by the...
M150 Amplifier- Ibrape (CB996E)
This amplifier became famous in the 1970s, it was sold in kit by Ibrape, Philips subsidiary for...