Secrets of the Fender "Twin-Amp" - Uncovering & Restoring a LOST CIRCUIT!

In this video, we'll use all our amp archaeology skills to uncover the original LOST CIRCUIT of the early, 1953 tweed Fender "Twin-Amp". The Twin Amp was Leo Fender's first 212 combo, and the first time he'd used separate Bass and Treble controls in a guitar amplifier. It also harbors a secret. The first iteration of these amps had a different tube compliment than the earliest published 5C8 schematic. The 5C8 schematic has a 6J5 tube before the tone stack, while the earlier amps - the first couple hundred perhaps - had all 6SC7 tubes. Without a schematic to go from, we'll have to examine the evidence closely and try to figure out what the original circuit was after decades of services and mods. ---------------------------------------- Check out the SONG | Songwriting Inspiration app: https://magicalpick.app.link/YIQF9BxQL4 ---------------- GUITOLOGIST MERCH: https://teespring.com/stores/the-guit... SUBSCRIBE TO CHANNEL 2: http://bit.ly/Guitologist2 ---------------------------------------------------------- SHOW YOUR SUPPORT 1: Donate via Paypal: https://paypal.me/guitologist?locale.... 2: Buy Merch: https://teespring.com/stores/the-guit... 3: Send in Viewer Mail. (Contact Me for details at [email protected] ) 4: Purchase an ad! (Rate sheets available upon request at email above.) 5: Buy something from a sponsor and tell them I sent you. 6: Stand in the middle of the street naked screaming "LONG LIVE THE GUITOLOGIST!" Then when the cops arrive, tell them about my channel. ------------------------------------------------------------ ♠STUFF I USE -5A Variac: http://amzn.to/2FNWthU -Jameco Isolation Transformer: https://amzn.to/2PRv1Fa -Fluke 87: http://amzn.to/2DwHjvr -Yotec 936 Soldering Station: http://bit.ly/2JqB1Vw -Sealody SSA51 soldering station: http://amzn.to/2DJTS7P -Black and Decker Heat Gun: http://amzn.to/2DWpDhr -Geekcreit® LCR-T4 Mega328 Transistor Tester http://bit.ly/2J9uLSA -HT02 Handheld Infrared Thermal Camera http://bit.ly/2LXfLoD -Solderless Breadboard: http://bit.ly/2stkVAq -Breadboard Jumper Wires: http://bit.ly/2JowaEh -Geekcreit® XR2206 Function Signal Generator DIY Kit http://bit.ly/2LYBvkb -Contact Cleaner: http://amzn.to/2FVitro -Max Professional Cleaner and Lubricant: https://amzn.to/37R3JY8 -Deoxit Fader Cleaner: https://amzn.to/2LPwtsE ♠RECORDING -JVC Everio Camcorder https://amzn.to/2RLIleU -Andonstar USB Microscope: https://bit.ly/2q8QIWz -Articulated Boom Arm with Cam Mount: https://amzn.to/2Hlo2AX -Shure Beta 87A https://amzn.to/2rNPnoW -EV 635A Omnidirectional Dynamic Mic https://amzn.to/2pR8HQT ♠RECOMMENDED BOOKS -RCA TUBE MANUAL http://amzn.to/2GOBVqS -DESIGN AND CONSTRUCTION OF TUBE AMPLIFIERS: http://amzn.to/2HSNMne -Designing Tube Preamps for Guitar and Bass: http://amzn.to/2DK5tmt ♠2006 FENDER AMERICAN STD TELECASTER PICKUPS -TV Jones Magnatron Neck: https://amzn.to/2q1zQjD -Seymour Duncan Vintage Stacked Bridge: https://amzn.to/2GyZjrK