Bob,
I have installed the following Peter Dahl xfmr into one of my SB-220
amplifiers.
Although it has different voltage/power ratings it has the same physical
dimensions
as the Peter Dahl xfmrs you refer to in your e-mail:
**************************************************************
DRAKE L4B-1200A7
SPECIAL FOR 3CX1200A7 MODIFICATION
CORE) A-0393/ C-CORE STYLE #) 10 HIPERSIL C-CORE
PR) 117/234 VAC 60 HZ HI-LO TAPS
S1) 0-1300-1400-1500 VAC @ 0.7A CCS
DM) HT = 6.000 WT = 6.325 DT = 6.281 MD = 3.625 MW = 4.000
PRICE) $250.00 Plus S&H FOB El Paso, TX WEIGHT) 23 LBS
**************************************************************
It went in o.k. but the top of the xfmr is about 1/8" too high, the
perforated sheet metal
that is screwed down on top of the amplifier now shows a slight bulge over
the xfmr area...
I have had no problems electrically or mechanically with this "interference
fit". Other than this
slight issue it went in with plenty of room around the sides.
Good luck,
Marc (WC1X, M0VOA, 4Z8BB)
----- Original Message -----
From: "Robert Dorchuck W6VY" <w6vy@verizon.net>
To: <Amps@contesting.com>
Sent: Sunday, October 09, 2005 03:14
Subject: [Amps] Peter Dahl Transformer in a SB-220
> Has anyone replaced the original HV transformer in a SB-220 with a Peter
> Dahl transformer?
>
> There are 3 listed on his website for the SB220,SB221 and HL2200
> with ratings of 1.0 or 1.3 amps. The physical size listed (all 3 are
> the same) is to large in the width dimension to fit on the chassis
> by about an inch. The mounting holes are different but that can
> be worked around.
>
> I did email the company and received a response that it would fit.
> I re-measured the available space on the chassis and still found
> the width one inch to wide. I sent a second email questioning the
> dimensions but have not received a reply.
>
> If anyone has used one of his transformers in a SB-220 I would
> appreciate the model number of the transformer and if you
> encountered any problems.
>
> Thanks,
>
> Bob W6VY
>
>
>
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>
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