[Amps] Transformer question...

Radio WC6W wc6w_amps at yahoo.com
Wed May 9 12:26:10 EDT 2007

Hi Bill,
  That transformer is designed to be operated with the
secondary center tap grounded.  

  It is not insulated for full wave bridge connection.

  And it's only good for about 1KW.  Hardly enough to
wake up a 4-1000A

73 & Good morning,
  Marv WC6W 


--- Bill Otten <harpman54 at tampabay.rr.com> wrote:

> Hi, I'm new to the group and just learning a great
> deal reading through the archives of this list. One
> question I have: I was given a United Transformer
> model S50 (called the special series in the only
> reference I could find online...a 1962-63 catalog).
> The S50 listed there isn't the same as the one I
> have. THAT one was listed as 115volt primary with
> secondaries of 3000-2500-0-2500-3000. 
> The one I have has the two 115 volt primary taps and
>  a center tap,  but there are 2 connections on top
> marked 5000volts and two more marked 6000 volts. I
> haven't a clue what the DC amperage rating might be
> on this amp, nor do I have any clue as to whether it
> would power an RF deck. I think my concern would be
> the pull on a 115 volt circuit to run 6000 volts
> out. Size is about 10" high by 9" wide by 7" deep.
> Plenty heavy.
> Bottom line: I'd appreciate any insight into this
> transformer and whether it would supply an amp
> somehow. It tests fine. 10 volts in and about
> 470volts out on the 5000v taps. I can't recall the
> results of the 6000volt taps but they were a bit
> higher than the 5000 volt taps. 
> I have the RF deck already complete...a very nice
> 4-1000A, just got to deal with getting a power
> supply to fire it up. 
> Thanks!
> Bill
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