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1. When connecting headphone output, did you try to regulate the volume low?
The signal from the phonejack is much stronger and the output impedance is orders of magnitude lower.
2. when doing it did you disconnect the crystal?
Can you do this:
1. Disconnect R2 from transformer.
2. Try to inject the signal from headphone jack between the disconnected pin of the resistor and the Positive of C1.
Messages In This Thread
RE: Philco TPA-1 - by morzh - 01-19-2014, 02:37 PM
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