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"Cigar Box" Amp
#5
Well. No luck. The board is the cleanest I have ever built, no slop, no visible solder bridges, cleaned every part with steel wool...and no sound.

I somehow lost a couple of caps (or my foster kitten removed), so I substituted film caps @ C8, C6, C1, a silver mica @ C26 (12p was all I could find) and an MLCC @ C5. Other than 12p vs. 15p all values match.


I get a faint click through the speaker when I plug it in loaded. The battery gets hot quickly. My meter wouldn't resolve any voltage across the 1ohm-1W resistor.

Any thoughts before I order one built?

Thanks. Jim


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Messages In This Thread
"Cigar Box" Amp - by galejt - 07-18-2022, 02:00 PM
RE: "Cigar Box" Amp - by K O'Connor - 07-18-2022, 02:54 PM
RE: "Cigar Box" Amp - by galejt - 07-19-2022, 03:23 PM
RE: "Cigar Box" Amp - by K O'Connor - 07-20-2022, 03:29 PM
RE: "Cigar Box" Amp - by galejt - 08-26-2022, 03:18 PM
RE: "Cigar Box" Amp - by K O'Connor - 08-26-2022, 08:33 PM
RE: "Cigar Box" Amp - by galejt - 08-27-2022, 02:03 PM
RE: "Cigar Box" Amp - by K O'Connor - 08-27-2022, 03:51 PM
RE: "Cigar Box" Amp - by galejt - 08-29-2022, 01:50 PM
RE: "Cigar Box" Amp - by K O'Connor - 08-29-2022, 05:04 PM
RE: "Cigar Box" Amp - by galejt - 06-04-2023, 05:04 PM

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