Get rid of the neutral connection. It can cause heating in the transformer
if the two sides of the 220 line are not perfectly balanced, which they
usually are not due to various 120 volt loads.
The two primaries will fight one another if there is any unbalance.
73
Gary K4FMX
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
> On Behalf Of Mr Mike
> Sent: Tuesday, June 21, 2011 6:55 AM
> To: amps@contesting.com
> Subject: [Amps] Henry 2K Classis P/S Question
>
> Recently, as in June 19, I bought a Henry 2K Classic, and have a
> question.
>
> Amp has a dual primary plate/filament xfmr.
> For 220v operation, they are of course wired in series.
>
> Henry manual leaves the center connection "floating"
>
> HOWEVER, previous owner has jumpered the center connection of the series
> connected
> primaries to neutral.
>
> AGAIN, I am talking wiring for 220v operation.
>
> I can't see any HARM in this, but it deviates from the factory wiring
> diagram.
>
> Amps works fine, I was mainly wondering if there were any ADVANTAGES to
> this method?
>
> Tnx
>
> Mike : AC2Q
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