So I have a penchant for fixing up these old shed-dwelling rusting relics. I hope it will pass...
Another 'fine' example (100EN) has tonight been under the knife. Aside from the usual casing rust, I found something new to me.
No PCB issues but the OCVs were around half what's normal, fluctuating rapidly (over 3 DC) that they were very hard to both read and record with accuracy.
I tested the 4 half bridge rectifier diodes. All were good.
So I isolated the rectifier and then tested the transformer's AC output; it was approx. twice what it should be.
An easy fix because I have an identical donor for a 'Trigger's Broom' job but that would entail no learning.
Another 'fine' example (100EN) has tonight been under the knife. Aside from the usual casing rust, I found something new to me.
No PCB issues but the OCVs were around half what's normal, fluctuating rapidly (over 3 DC) that they were very hard to both read and record with accuracy.
I tested the 4 half bridge rectifier diodes. All were good.
So I isolated the rectifier and then tested the transformer's AC output; it was approx. twice what it should be.
An easy fix because I have an identical donor for a 'Trigger's Broom' job but that would entail no learning.