Gryphon S100 Amplifier Repair - Part 1. A close look at a nightmare.

Gryphon S100 Amplifier Repair - Part 1. This Gryphon S100 amplifier is in pretty poor shape. To make it worse, someone has been in here with lots of enthusiasm, and little to no care or know-how. It is a "dual-mono" power amp, and is really a high quality piece of equipment. The component choices and design is top notch, which explains the high price it fetched when sold in the 90's. The fault seems to be in the input boards, as becomes apparent when you look at it close-up. Someone has tried to repair this, and in so doing ripped up a lot of pcb tracks, and wired things up incorrectly. This is an attempt at getting the amp back to working order, with no certainty of success. Love the challenge (I'm an idiot)! Playlist for this series of videos:    • Gryphon S100 Amplifier Repair - Part 1. A ...   See a series of 'Restoration Building Blocks' videos on detailed steps in the restoration process:    • How to safely check the Power Transformer ...   See also playlists on some other completed restoration projects. PHILIPS BX750A:    • Philips BX750A tube radio restoration - Pa...   TELEFUNKEN OPUS 2114:    • Telefunken Opus 2114 stereo tube radio res...   SABA UW-175-Z 3D:    • Saba UW 175-Z 3D tube radio restoration - ...   GRUNDIG 1070:    • Grundig 1070 tube radio restoration - Part...   SCHAUB-LORENZ GOLDY 58 type 3020:    • Schaub-Lorenz Goldy 58 type 3020 tube radi...   BUSH VHF64:    • Bush VHF64 tube radio restoration - Part 1...   GRUNDIG 3060A:    • Grundig 3060a tube radio restoration - Par...   TELEFUNKEN OPERETTE 8:    • Telefunken Operette 8 tube radio restorati...   GRAETZ SUPER 171W:    • Graetz Super 171W tube radio restoration -...   LOEWE-OPTA MAGNET 3737W:    • Loewe-Opta Magnet 3737W tube radio restora...   BRAUN ATELIER 3:    • Braun Atelier 3   LOEWE-OPTA TRUXA STEREO 4741W:    • Loewe-Opta Truxa Stereo 4741W   GRAETZ COMEDIA 616:    • Graetz Comedia 616 tube radio restoration ...   SABA FREIBURG W2:    • Saba Freiburg W2 (WII) restoration   GRAETZ MUSICA 4R417:    • Graetz Musica 4R417 restoration   You may also be interested in ... CAPACITOR LEAKAGE TESTER:    • Capacitor leakage tester design & build DI...