Support the Truth About Vintage Amps through our brand new Patreon page: https://www.patreon.com/vintageamps Once again, Skip Simmons is fielding guitar amp questions from around the world, except this time we're joined by special guest, Jef Brown! Some of the topics discussed on this episode: 8:54 'Practical Amplifier Diagrams' (1947) 17:02 The grounds on an all-original 1962 Fender Tweed Champ 22:34 Power section filtering 26:30 Special Guest: Jef Brown! (Jef's band, Jef's amp blog) 1:13:32 A Gibson GA-25 RVT Hawk that smells 1:19:23 Bass-ifying a single-ended amp build 1:23:00 A Silverface Princeton Reverb missing its foot switch 1:25:15 El Paso fajita seasoning 1:26:04 Turning your amps on-and-off during the workday Have a question or topic for a future episode? Email or send us a voice memo to: podcast@fretboardjournal.com or leave us a voicemail or text at 509-557-0848.  This episode is brought to you by Grez Guitars and Amplified Parts (who happen to have Jack Darr's 'Electric Guitar Amplifier Handbook' in-stock now), with special audio help from Izotope. Use the discount code RUIN10 to save 10% off your Izotope order.