northsiderap
Well-known member
Lately I've been checking out power supply design, and I have an assortment of old unmarked power supply transformers to check out.
I have been measuring DC resistance and trying to draw out a schematic of which wires I think are supposed to go where... Then I have a beefy 50k I attempt to load the secondary with.
Sofar I have messed up a few transformers in a big puff of smoke and usually a nice 60hz buzzing sound... I'm starting to get shell shocked from all the fireworks.
:shock:
Anyone have any better way to test old unmarked power xformers? Tomorrow I'm going to use a 1 VAC generator if no-one has any better ideas...
I have been measuring DC resistance and trying to draw out a schematic of which wires I think are supposed to go where... Then I have a beefy 50k I attempt to load the secondary with.
Sofar I have messed up a few transformers in a big puff of smoke and usually a nice 60hz buzzing sound... I'm starting to get shell shocked from all the fireworks.
:shock:
Anyone have any better way to test old unmarked power xformers? Tomorrow I'm going to use a 1 VAC generator if no-one has any better ideas...