[AMRadio] Ham mods (was Re:SP600 Question)]


Bry Carling bcarling at cfl.rr.com
Wed Sep 16 07:34:05 EDT 2009


Charles - that would probably be due to the nasty 6AL5 clipper circuit 
used in the Valiant.

It would affect the audio badly even when turned all the way down.

Date sent:      	Tue, 15 Sep 2009 13:41:37 -0400
From:           	Charles Ring <w3nu at roadrunner.com>
To:             	ne1s at securespeed.us, 
	Discussion of AM Radio in the Amateur Service 
<amradio at mailman.qth.net>
Subject:        	Re: [AMRadio] Ham mods (was Re:SP600 Question)]
Send reply to:  	Discussion of AM Radio in the Amateur Service
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> I wonder why the Ranger would be among the best stock audio and the 
> Valiant among the worst? Same maker, same vintage, etc.
> 
> 73 de W3NU
> 
> 
> Larry Szendrei wrote:
> > Concerning the discussion of audio modifications to commercially designed
> > amateur AM transmitters:
> >
> > A lot of these rigs from the 1950s (Viking I, Viking II, Valiant, DX-100)
> > did, in fact have pretty nasty audio in their stock state, and there are
> > good reasons to go in and engineer improvements in that department - and
> > there are many "low-hanging fruit."
> >
> > Granted, modifications made by hams will cover the spectrum from
> > worse-than-stock to an "extreme make-over" in the positive direction. So
> > will their physical implementation.
> >
> > (From what I've heard and had experience with, the Collins 32V-* series,
> > and the Johnson Viking Ranger, are among the best-sounding in stock form
> > of this generation of gear.)
> >   
> 
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