Ep. 125: "Put Your Hands on the Hood"
It's the 125th installment of the Truth About Vintage Amps with Skip Simmons!
Want to be a part of our show? Just email us a question or voice memo to\xa0podcast@fretboardjournal.com.
Some of the topics discussed this week:
:51 Skip works on a Jim Kelley Amp, built-in attenuators, the magnetic field caused by a Tweed Bassman speaker\xa0
3:30 Skip needs an RCA MI-12155 schematic\xa0
3:56 Making stuff for the Bay Area Guitar Show
6:51 Our sponsors: Emerald City Guitars, Amplified Parts, Stringjoy Strings, and\xa0Grez Guitars.
8:12 Our 2023 Voltic DTF pedal Dad joke winner: Keith F with "Why did Skip have to marry Mrs. Simmons? From the day he solder, he couldn't resistor."
9:34 A basic servicing check-list of what to do when you get a vintage amp \xa0 15:36 An early 1960s Tweed Princeton branded Harvard, tensioning the input jack \xa0 22:22 Modar-branded guitar amps; tube lineup of EF86, 6BQ5, EZ81 \xa0 23:51 Trainwreck amplifiers; the tone difference between a single 8 ohm secondary winding vs four separate 1 ohm coils wired at 8 ohms\xa0 \xa0 25:47 Should I buy this Peavey Triumph 120 combo?; five-pin footswitch replacement\xa0 \xa0 28:15 Dummy load vs speaker when working on amps \xa0 30:55 How to replace the battery circuit on a Bogen E66 portable PA, ice cream truck-specific amps, the Fretboard Brewery \xa0 35:45 5Y3 rectifiers, demystified\xa0 \xa0 39:00 Rancho Gordo beans, redux\xa0 \xa0 39:46 An inspiring 1966 Champ and a vegan pumpkin pie\xa0 \xa0 45:24 A hi-fi Eico ST-84/Dynaco ST-70 with the balance way off, RIP Earl Yarrow\xa0 \xa0 55:22 Servicing a Carr Mercury; 12AT7 versus 12ZX7 pre-amp tubes\xa0 \xa0 1:01:04 What to do with a 1980s Fender 30 with a weak second channel? a rare Ampeg B-15NHosted by amp tech Skip Simmons and co-hosted/produced by Jason Verlinde of the Fretboard Journal. Happy holidays, everyone!\xa0
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