Ep. 152: "Gridley Bias"

It's the much-delayed 152nd episode of the Truth About Vintage Amps! Thanks, as always, for being a part of the world's finest call-in tube amp repair show. Want amp tech Skip Simmons' advice on your DIY guitar amp projects? Join us by sending your voice memo or written questions to podcast@fretboardjournal.com ! Include a photo, too. Some of the topics discussed this week: 3:53 Real musicians ARE gearheads (redux) 5:47 Our sponsors: Grez Guitars ; Emerald City Guitars and Amplified Parts ! 6:40 Tom Gunterman gets two Grez's 8:21 Yellow Jacket tube converters 10:27 Standel amps (redux); Todd Clinesmith; National Dobro amps; driver transformers and pre-war amps 17:35 Using an A/B/C switcher box to flip the phase on amp channels 21:45 Thanks to Chicago's own @vintagetubeamplifiers for stocking the TAVA room at the Fretboard Summit 23:28 Building a clone AB763 with more headroom, ultralinear transformers 29:20 Yellow Jacket YJRs; eggs in ramen 32:42 Tom Gunterman, redux! 33:43 Finding joy with a John Kelly amp, until a loud zap and hum; the Western States Endurance Run 42:20 Playing guitar with accordion; the Joe Mooney Quartet; collard greens with kale 47:59 Speaker-to-power ratio on speakers; classic rock; album covers Note: This was supposed to come out in mid-August (pre-Fretboard Summit), but your overextended co-host messed it up. Sorry. We'll get back on schedule. -Jason Want amp tech Skip Simmons' advice on your DIY guitar amp projects? Want to share your top secret family recipe? Need relationship advice? Join us by sending your voice memo or written questions to podcast@fretboardjournal.com ! Include a photo, too. Hosted by amp tech Skip Simmons and co-hosted/produced by Jason Verlinde of the Fretboard Journal. Don't forget, we have a Patreon page . Support the show, get behind-the-scenes updates and get to the front of the line with your questions.

You can listen to Ep. 152: "Gridley Bias" online on Radio and Podcast. Open the player on this page to stream the available audio.

Ep. 152: "Gridley Bias" is an episode from The Truth About Vintage Amps with Skip Simmons by The Fretboard Journal.

This episode is 56:43 long.

This episode was published on Sep 3, 2025.

Yes. Use the heart button on the episode page to add it to your favorite episodes list.

Yes. This page shows related episodes from The Truth About Vintage Amps with Skip Simmons when more episodes are available from the podcast feed.