It's the 87th episode of the Truth About Vintage Amps! Plenty of amp tips for newbies, some deep Ampeg talk, music recommendations, amp tips for steel guitar players, and more. This week's episode is sponsored by Jupiter Condenser Co., Amplified Parts and Grez Guitars.  Support us on Patreon.com for added content and the occasional surprise.  Some of the topics discussed this week: :54: RIP Alexander Howard Dumble 1:58 The TAVA Big Index Page (link) / Tableau Index Page (link) 2:21 Jason attempts to finish his Champ kit project 4:05 A Massie-built Electro amp on eBay (link) 8:05 Beginner's Corner: Speaker cables versus guitar cables 9:41 The capacitors in our brain 11:19 A replacement optocoupler for Gibson GA-20 RVT?, tremolo circuits 16:02 A tip for pros: Max-Pro.com 18:18 Frank Sinatra's 'Songs for Swingin' Lovers;' cleaning and retensioning tube sockets, redux   27:10 Music recommendations: https://www.wwoz.org; typewriters; The Deputy (YouTube link) 32:37 The dual fixed and cathode bias circuit on a Fender AC568 Bassman 37:27 Mother of toilet seat amps; Skip's preferred wiring, tube sockets and more 50:00 Fixing a vintage tube with a broken guide key, aftermarket tube bases 54:42 Fender Deluxes: 5E3 vs 6G3, roasted brussels sprouts 59:16 Skip's speaker picks; Skip's reference cab 1:04:31 How to make a lot of mead; the Prudence Penny Cookbook 1:07:09 Ampeg Gemini I reverb tank 1:10:32 The tone control circuit of an Ampeg M-12 Versus Tweed Deluxe; Kenny Burrell's 'Bluesin' Around' 1:17:00 What's up with my early '60s Ampro combo amp? 1:22:09 Amps for steel players, revisited    1:30:22 Interviewing a tech before you let them work on your amp, a lazy guy's lo-mein    1:38:05 Anyone need an original NOS car radio potentiometer?  The Truth About Vintage Amps is hosted by amp tech Skip Simmons. Co-hosted and produced by the Fretboard Journal's Jason Verlinde. Email or send us a voice memo to: [email protected] or leave us a voicemail or text at 509-557-0848. And don't forget to share the show with friends.