Tuesday, May 27, 2025

Swan 117XC Restoration

 This is another Swan 117-XC power supply restoration. These are solid performers and used to power many of the Swan rigs like the 250, 350, 500, etc. 

Restoration is pretty straightforward... refinishing the cabinet, compounding the front panel, replacing all electrolytic caps, replacing the old "metal-can" style rectifiers, and replacing the 4.7 ohm resistor in the 12v relay supply circuit. Here's a few pics...




Rust to be removed and repainted...




Old caps to be installed...


4.7 ohm resistor measured 22 ohms...


Compounding front panel with Flitz...


New caps installed...


New caps installed...


New diodes in place, and 4.7 ohm resistor replaced.