The Truth About Vintage Amps, Ep. 27

One again, amp tech Skip Simmons is answering all of your pressing amp questions on the Truth About Vintage Amps podcast, brought to you by the Fretboard Journal. Submit your question to Skip here: podcast@fretboardjournal.com or, better yet, leave us a voicemail or text at 509-557-0848.

**Order a PDF download of Steve Melkisethian’s tweed Princeton amp project here.**

This week’s sponsor: Grez Guitars (link)

Want to see all the former topics discussed on the TAVA Podcast? Click here for all the show descriptions on one page.

Some of the topics discussed on this episode:

1:20 Skip’s A/B box setback
3:00 A winner for our Stew-Mac Champ kit
4:40 A question for our Australian listeners
6:07 A glitchy Ampeg Reverberocket
7:09 Skip heads to a vintage guitar show
12:00 @manbroidery two-prong hat update, let us know if you want one (Instagram link)
15:22 Old carbon comp resistors and Domino caps in an amp kit build
20:23 Testing caps for leakage
24:58 Running a synth through a tube amp
28:33 The time signature of Kenny Burrell’s “Chitlins con Carne”
30:07 Music recommendation: The Joe Mooney Quartet (YouTube link)
31:17 The rationale for crazy amps like the Baldwin Exterminator
35:53 The sushi boat amp update; Rob Robinette’s tube amp page; micro amps
40:40 1960s Guild Thunder series amps
43:52 New cast iron (link, link, link); rum & tonic
46:24 The big, growing TAVA Index page
46:58 Wear and tear from maxed out amp settings
48:25 Restoring (and storing) a blown Oxford speaker
50:52  Where the magic happens in a non-master volume tube amp
59:00 Tips re: Little Charlie’s Chile Colorado
1:04:43 The speaker driven out / monitor jack on a Gibson Falcon
1:09:34 Tinkering with a one-tube reverb circuit
1:12:11 Modding a Gibson GA-5 Les Paul Jr. reissue amp
1:18:01 Thoughts on the Fender Musicmaster Bass amps
1:23:10 A cheap Variac hack with a current meter (eBay link; eBay link)
1:29:00 Safely using a ‘60s Supro Bantam “widowmaker” amp
1:33:08 Adding a polarity switch to an amp without one
1:35:36 Effects pedals between an amp and its speaker?
1:37:50 ART tube pre-amps (revisited) and Skip’s preferred tube preamps
1:42:00 Output transformer spec basics

Special thanks to TAVA listener Eric Casimiro for helping us edit this week’s episode.

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Special thanks to the presenting sponsors of the Fretboard Journal: Gibson, Martin and Carter Vintage Guitars.