| 摘要 |
The multi-sound generator for testing the multi-sound television includes a first signal generator(1) providing 400 Hz signal, a second signal generator(2) providing 1000Hz signal, a third signal generator providding 149 Hz signal, and a forth signal generator providing 276 Hz signal. Each signal is provided through each differentiate circuit comprising a resistor and condenser, and being adjusted by each variable resistor.
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