[Amps] SB-220 High Voltage Transformer.

[Jim]

The secondary is 10 ohms.

The primary:

Black to Black/Yellow is .6 to .7 ohms. (SSB winding)
Black to Yellow is .9 ohms. (CW winding)
Same on the other primary.

You can run each primary separately to see if there is a problem that 
way. If one primary is shorted though, you will have lots of current.

If you energize black and yellow to 120 volts, you should have 120 volts 
on the other primary (black/Green and Blue).
And vise-versa, and have about 880 volts on the secondary, which is the 
CW position, which you can measure with a standard
1000 volt max meter.


I have never seen a shorted/open/bad SB220 plate transformer. But it 
could happen. Others may have their experiance.

A shorted filament transformer?  YES! Many times.



Thanks
73
Jim W7RY

On 1/3/2019 1:23 PM, Joe wrote:
> Does anyone have the Ohmages for each coil of a Good High Voltage 
> Transformer of a original equipment SB-220 Amp?
> In other words what an Ohm meter says for each coil...
> Joe WB9SBD
>
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps