[ARC5] Modifying 1625s

[Fuqua, Bill L]

Those were the days. I remember building a 813 amplifier with out shielding.
You could see everything and used to play with drawing arcs off the plates to a 
big screw driver. One time I did it so long the metal got hot and started to sag 
because it was melting the plastic handle. 
73
Bill wa4lav

________________________________________
From: arc5-bounces at mailman.qth.net [arc5-bounces at mailman.qth.net] On Behalf Of Roy Morgan [k1lky at earthlink.net]
Sent: Tuesday, January 10, 2012 7:25 PM
To: kgordon2006 at frontier.com
Cc: ARC5 at mailman.qth.net
Subject: Re: [ARC5] Modifying 1625s

On Jan 10, 2012, at 12:49 PM, Kenneth G. Gordon wrote:...
> Yes. Exactly. In fact, that entire procedure and the amp that
> resulted was the subject of an article in at least one ARRL Handbook
> of the period. Used 4 ea "modified" 1625s in GG and the ARC-5 roller
> inductor in the front.

I have one.  Built by a ham who lived on my street but who moved away
before I got really interested in hamming.  How I got the amp he
build, I don't know, but perhaps from some of his family who still
lived there.

The amp has a Masonite front panel, two 866's for rectifiers and a
hand wound (or re-wound) plate transformer.  The ARC-5 tuning inductor
and plate capacitor are there, too.  Two wire lamp cord for a power
core.  No shielding whatsoever.

Roy


Roy Morgan
k1lky at earthlink.net
K1LKY Since 1958 - Keep 'em Glowing!



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