Hello!
Those are the photos of my PSU. Sorry for the late!!!
Hope that can help you!
Best regards!
Hi,
Thank for your kindness.
The photos is very useful for me.
Have a nice day!!
Best Regards,
Yoo
I Think You can solve it his way
Disconnect all the secondary wires and connect only the primary to 120V.
Measure the no load Voltage on one of the secondaries.
Get some transformer wire like the primary wire and wind a few say 10 to 20 turns on the transformer the same direction as the original primary.
Connect it again and measure the Voltage on those wires.
Make Your math and determine how many turns You'll need for 120V.
Wind the remaining turns on the transformer but leave some wire for adjusting turns.
Now connect the two primaries (old and new) in series following the same winding direction to 220V and measure again the no load secondary voltage on the other wires You've measured before. The reading schould be somewhat identical.
Adjust turns
It schould work !
Disconnect all the secondary wires and connect only the primary to 120V.
Measure the no load Voltage on one of the secondaries.
Get some transformer wire like the primary wire and wind a few say 10 to 20 turns on the transformer the same direction as the original primary.
Connect it again and measure the Voltage on those wires.
Make Your math and determine how many turns You'll need for 120V.
Wind the remaining turns on the transformer but leave some wire for adjusting turns.
Now connect the two primaries (old and new) in series following the same winding direction to 220V and measure again the no load secondary voltage on the other wires You've measured before. The reading schould be somewhat identical.
Adjust turns
It schould work !
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.