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Restoration Project #35 - Precision E-200-C

Early 2022 I found an RF signal generator on ebay that was in need of plenty of TLC; Since it fit into my slightly growing "Precision" collection, next to the VTVM and the tube tester, I couldn't pass up the chance. It is a challenging project to say the least. I am not all that familiar with RF and take the opportunity to learn! Anyhow: follow along as I uncover one problem after the other... can I fix them all? I think I saw ‪@MrCarlsonsLab‬ doing a slightly earlier revision than this one a few weeks ago. Not sure if it was a new video or just a suggestion... his circuit was a bit different from my unit though. 0:00 Intro - Presentation 1:20 Disassembly 2:50 Carry Handle / Dent 3:30 Case Sanding / Painting / Dial Sanding / Front Panel Polish 4:43 Line Filter Recapping 5:29 Tuning Capacitor: Cleaning / Lubricating 7:38 Axle Rebuild 9:10 Knob Cast / Knob Remake 10:03 Resistor Fail / Potentiometer and Switch Cleaning 11:44 Union Oscillator 12:52 Transformer Rewinding 14:20 Rebuild 14:52 RF Sockets and Output Can 16:12 DC Filter Cap and Power Resistor 18:12 Indicator Plastic Remake 18:38 Turn on / Ouch! 19:38 RF Flatline / Broken Cap / Finalizing 20:45 Two Pending Issues 22:14 Fished (for now!) / Outtake Music: My Train's A Comin' Unicorn Heads (YouTube Audio Library) You can support me on Ko-Fi: https://ko-fi.com/atkelar The "tuning knob" OpenSCAD script can be found here: https://github.com/Atkelar/OpenSCADGa... I also created a journal post about some of the issues I had that were either too detailed or better suited for a text explanation over here ➡️ https://atkelar.livejournal.com/85973...