Volume control circuit
Source: InternetPublisher:清宁时光 Updated: 2015/05/31
Relevant key device information used in this article:
BC109C
Based on the classic Baxendall tone control circuit, this provides a maximum cut and boost of around 10dB at 10K and 50Hz. As the controls are passive, the last transistor provides a slight boost. The The output is designed to feed an amplifier with input impedance of 10k to 250k.
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