Amplifier for microphone and phonograph (T1546E)

We found this circuit in the 1975 RCA tube manual. The circuit has 8 watts of output power. Power supply is included.

| Clique na imagem para ampliar |

Modulated Light Receiver (CB14690E)
This circuit, which can be used on an optical link, is suggested by the Texas Instruments...
10 A power supply (CB17206E)
This source, from a 1998 publication, can be used as a battery charger. The diodes are for 10 A x...
Circuit To Observe Transistor´s Characteristic Curve (CB1287E)
We found this circuit in an old publication on oscilloscopes. Its purpose is to observe the Ie /...