Modson SB-1000

[Rankin A. (Army) Curtis]

Hi Mac,

It sounds like the paralleled resistors are effectively in series with the
primary of the transformer, which will lower to some extent the primary
voltage, and thus also the secondary voltages. The only reason I can think
of for making such a mod would be if the previous owner had higher than
normal line voltage, and wanted to drop it. I would suggest that you remove
the resistors, and replace them with the wire jumper as originally designed.
Unless there is a fault in the transformer (very doubtful), it should work
fine.

Hope this helps.

Army - AE5P
Nacogdoches, the oldest town in Texas
(and a bloody long way from El Paso!!)

Patrick J McAuliffe wrote:

> Hi Heath Fans,
>
>           Just got a SB-1000 and it is in great shape however, I did
> notice a mod
> that was not found anywhere in the construction doc's or any notes that
> I found with the Amp.  The mod has something to do with the Voltage
> change
> from 120VAC to 240VAC .   In the 240VAC operation you would cut this
> wire, and
> in the 120VAC u would add it.  I find a couple of resistors in paralell
> there now,
> anyone out there aware of this mod???   Any assistance will be
> appreciated,
>   Thanks for the space.....es.....73.........de......Mac/K6QPZ..El Paso.
> Tx......
>
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