D-lab Philco Radio tube guitar amp via harp mode harmonica tone demo

1,012 views · Published 3 March 2015 · 1:19 · Indexed 26 October 2026

Channel: D-lab Electronics · 2015 · Science & Technology

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Had a fellow over tonight to pick up a repaired amp. I did not charge him, but decided to get a harp demo out of the deal.

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