- #1
Plat
- 48
- 2
I don't understand how this is possible.
This is a rather large transformer in a stereo system amplifier. The transformer is a simple step-down with 120V mains primary to a center-tapped secondary providing both 38V and 76V.
According to ohm's law, at 120V this thing should draw about 85 amps, which obviously isn't happening. What could be going on here?
I have measured for myself 120V in and 76V out of the transformer with the equipment running, and confirmed my ohm meter accuracy against an assortment of resistors.
There is also no additional resistance between mains 120V and the primary winding, just a relay.
This is a rather large transformer in a stereo system amplifier. The transformer is a simple step-down with 120V mains primary to a center-tapped secondary providing both 38V and 76V.
According to ohm's law, at 120V this thing should draw about 85 amps, which obviously isn't happening. What could be going on here?
I have measured for myself 120V in and 76V out of the transformer with the equipment running, and confirmed my ohm meter accuracy against an assortment of resistors.
There is also no additional resistance between mains 120V and the primary winding, just a relay.