waspclothes 2/13/2018 5:01 PM
Any way to add an isolation transformer inside PT-LESS old amplifier?
Hey everyone, So I recently got my hands on an old amplifier believed to be from Sears - made in Canada. With a 35W4, 50C5 and 12AX7. I've made a few repairs and now have it working, but I'd like to make it safe by modern standards. It currently has no ground connection and no power-transformer. Is there a proper way of adding some safety into these old amps? This is all I've been able to find: [url=http://www.instructables.com/id/Isolation-transformer-upgrade-for-old-guitar-amps/]Isolation Transformer Upgrade for Old Guitar Amps: 11 Steps (with Pictures)[/url] Similar amp as what I have - this guy adds a transformer, fuse, power switch and solid-state full-wave rectification before the half-wave rectifier tube. Is all of this advisable?