[AMRadio] Hammond Transformer ID

Wed Feb 17 07:53:50 EST 2010

As Ed VA3ES had mentioned earlier in the thread, 

All the data you're looking for on the Hammond 2300 series of modulation transformers is available at the va3nth.com/shortskip site in the downloads section. Lots of other information on the older Hammond modulation and driver transformers too.

http://www.va3nth.com/shortskip/downloads.php?cat_id=7&download_id=35 

http://www.va3nth.com/shortskip/downloads.php?cat_id=7&download_id=34 

For the terminal connections and the impedance ratio tables.

Al VE3AJM

> Date: Tue, 16 Feb 2010 22:24:35 -0700
> From: jtml at losalamos.com
> To: amradio at mailman.qth.net
> Subject: [AMRadio] Hammond Transformer ID
> 
> The Hammond type 2350 was a 500 watt mod. transformer rated for 500 mA 
> per side on the primary and 500 mA on the secondary, 1 Amp if they are 
> paralleled. It was a universal oil-filled type. Freq. range was 120 - 
> 7000 Hz. No specs. given on the turns ratios, but there must be a lot of 
> combinations with 12 terminals.
> 
> John
> K5PRO
> 
> 
> > Message: 7
> > Date: Tue, 16 Feb 2010 03:22:28 -0800 (PST)
> > From: Jack Griffin <jtg4300 at yahoo.com>
> > Subject: [AMRadio] Hammond Transformer specs. 2350
> > To: amradio at mailman.qth.net
> > Message-ID: <31255.36615.qm at web58701.mail.re1.yahoo.com>
> > Content-Type: text/plain; charset=us-ascii
> > 
> > I have what looks like a large Modulation Transformer.
> > Hammond Model 2350 with 12 HV terminals. It weighs about 50-60 pounds.
> > Anyone have the specs on this beast?
> > Thank you, Jack, WA1BRI
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