Hi Carl
Thanks for response. I have backed off on the theory that it came out of
8K Ultra. That rig must have a much larger transformer. I am now going
with Glen's 2000D idea, since the partial supply that I have here is laid
out identical to the 2000D manual picture.
But I still think that the 4K Ultra must use a very similar transformer if
not the ECA 1028, since they look exactly the same and have similar
performance specs. Strangely the part numbers don't cross in documents I
have seen so far.
73
Mike, KL6M BP51dc http://www.qsl.net/kl6m
> Most 8K's run on 240V single phase, some commercial versions use 3 phase.
>
> Carl
> KM1H
>
>
>
> ----- Original Message -----
> From: "Glen Zook" <gzook@yahoo.com>
> To: "Mike KL6M" <melum@alaska.net>; <amps-bounces@contesting.com>
> Cc: <amps@contesting.com>
> Sent: Monday, July 29, 2013 11:24 AM
> Subject: Re: [Amps] Henry Transformer
>
>
> As in our private communications, the ECA-1028 was used in the Henry 2000D
> amplifier. I don't know about the 4K Ultra. The manual refers to a Henry
> part number, B4-75448, but does not reference an "EC" number like most of
> the other Henry amplifier manuals. The 8K-Ultra uses an EC-26142 which is
> a
> 3-phase transformer.
>
> Glen, K9STH
>
>
> Website: http://k9sth.com
>
>
> ________________________________
> From: Mike KL6M <melum@alaska.net>
> To: amps-bounces@contesting.com
> Cc: amps@contesting.com
> Sent: Thursday, July 25, 2013 6:39 PM
> Subject: [Amps] Henry Transformer
>
>
> I have the same transformer (ECA 1028) and I am trying to find out its
> specs.
>
> Did anyone come up with the info on it? I think it came out of a 4k
> Ultra, but possibly an 8K Ultra!
>
> 73
>
> Mike, KL6M BP51dc http://www.qsl.net/kl6m
>
> -------------------------------------------------------------
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
> Behalf Of Glen Zook
> Sent: 06 April 2011 07:15
> To: amps@contesting.com
> Subject: [Amps] Transformer i.d.
>
> I now have a transformer that is reportedly rated at 3000 volts at 1 amp.
>
> The transformer is supposedly from either a Henry or Alpha amplifier. It
> weighs about 70 pounds. The nomenclature is as follows:
>
> Elect Corp of America
> South Gate
> p/n ECA 1028
>
> Unfortunately, there is no other information on the transformer such as
> which terminal is which tap on the secondary. The primary terminals are
> obvious, they are completely different from the terminals on the
> secondary.
> The primary terminals are numbered 6, 7, and 8. These are very large
> solder
> terminals.
>
> The secondary terminals are numbered 1, 2, 3, 4, and 5. These are machine
> screw studs mounted on an insulating material. What I really need to know
> is how these 5 terminals are configured. I sincerely don't want to have to
> apply voltage and then measure the voltage.
>
> Anyone have some information on this particular transformer?
>
> Glen, K9STH
>
> Website: http://k9sth.com
>
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