Balance indicator (CB7012E)

This balance indicator for stereo amplifiers was found in an 80's Elektor. The components used are common. Zeners are 1.8 V or close to that value.

| Clique na imagem para ampliar |

Frequency Standard (CB206E)
The circuit shown in Figure bellow generates frequencies of 50 Hz, 100 Hz, and 200 Hz. The circuit uses a...
Tunable Notch Filter (CB14923E)
This circuit rejects frequencies around 1 kHz and can be adjusted using C1. Equivalent operational...
FM Transmitter Multiplex Mixer (CB18779E)
From stereo inputs, this circuit generates a modulated and multiplexed signal to be transmitted in the FM...