10-14-2020, 01:59 PM
Just so you know variacs do not provide any isolation from the ac line like a isolation transformer. Variacs are auto transformers which means that they are a transformer that only have a primary no secondary. Fine to use with sets with a power transformer but if used on a set with series strung heaters use safety precautions as you would with a standard ac/dc set.
There are sets that look like ac/dc set but aren't. Cheap tube type phonos ac/dc chassis for the amp but the motor is ac. Sets that look like an ac/dc set but uses a voltage doulber in the power supply. On the outside it will be marker as 120 volts ac so you think you're ok but maybe not.
There are sets that look like ac/dc set but aren't. Cheap tube type phonos ac/dc chassis for the amp but the motor is ac. Sets that look like an ac/dc set but uses a voltage doulber in the power supply. On the outside it will be marker as 120 volts ac so you think you're ok but maybe not.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got it!
Terry
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