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| Need assistance with LM1875 amp cct |
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| Audioguru:
The National Semi and Texas instruments datasheets of the LM1875 clearly shows a minimum supply of 16V on the first page and a graph shows almost no output power at such a low voltage. Of course the + input must be biased at half the supply voltage and the - input must have AC and DC negative feedback. A 1uF input capacitor feeding the 22k input resistor cuts frequencies at and below 7.3Hz. It does not need 10uF. |
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