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Re: [Amps] Buck-Boost Transformer Selection

To: "'Richard Solomon'" <>, <>
Subject: Re: [Amps] Buck-Boost Transformer Selection
From: "Jim Garland" <>
Date: Wed, 25 Jun 2014 11:17:56 -0600
List-post: <">>
Hi Dick,
You don't need a 1.5KV rating. Let's say you want to drop the line voltage
by 12V and suppose  the maximum current drawn from the AC line by the
amplifier is 15 Amps. You'd thus  need only a 12Vrms/15A transformer (180W).
Because of the limited duty cycle of the Quadra, probably a 10-12A
tranformer would work fine. 
Jim W8ZR.

> -----Original Message-----
> From: Amps [] On Behalf Of Richard
> Sent: Wednesday, June 25, 2014 11:06 AM
> To:
> Subject: [Amps] Buck-Boost Transformer Selection
> I have a lead on a late production Quadra so I guess I better
> invest in a B-B Xfmr to get my sometimes 250 volt line down
> to something acceptable to my new little friend.
> Question is on the rating for the Xfmr ... I expect I should get
> something rated for the load, say 1.5 KVA (considering the
> rating is for CCS use not ICAS).
> Now I find lots of them over on the evil empire, but looking at
> the specs on the label is confusing:
> One I found says:
> Max Volts 264   Max Amps 62.5  1.5KVA
> The current rating does not make sense. How can I sort this out ??
> Thanks, Dick, W1KSZ
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