HR-10 worthwhile mods

[Brian Carling]

JIm I was HIGHLY encouraged by reading your tale of 
perseverence with that rig.
I LOVE the DX60 etc.

My DX60B was WELL worth restoring! I have been making 
a lot of great CW contacts with it and a few on AM as well!

Keep it up!

Brian, AF4K

On 9 Feb 2006 at 11:49, jimbristol wrote:

> OK you guys... I just can't stand it any longer... Everybody here in the
> Twin Cities calls me a weenie for loving my DX-60A/HR-10/HG-10... I love CW
> and back in 1964 when I bought and built the darn thing I worked 17 states
> in the first week after it was done and I thought I was God... I have made
> all kinds of mods plus redesigned it for complete QSK operation... If I'm
> sending at 20 words per min and someone wants to break me with a dit or a
> dah then can do it... TR switch to protect the receiver and the whole nine
> yards... I just spent the last 2 days rebuilding the function switch
> (replacing smoldered contacts with contacts from another ceramic switch)
> with super glue and high strength lock tite and by all that is holy and
> right the darn thing is sitting it the shack right this very minute working
> like a dream... This last time the high voltage contacts shorted and took
> out a couple of diodes in the power supply and the switching contacts too...
> I've done so much work on the darn things I dream about it all night...
> Sorry to butt in but have been reading all your emails and I just couldn't
> stand it any longer... I had to shoot off my mouth and let you guys know
> that I'm pleased to know that there are a few really great HAM'S left in
> this world... Jim B...
> 
> ----- Original Message ----- 
> From: "Brian Carling" <bcarling at CFL.RR.COM>
> To: <HEATH at LISTSERV.TEMPE.GOV>
> Sent: Thursday, February 09, 2006 6:50 AM
> Subject: Re: HR-10 worthwhile mods
> 
> 
> > Allen and Bill - I would LOVE to see these mods.
> > I have a REALLY nice HR10B here and am already enjoying
> > it a lot with the DX60 and HG10B VFO.
> >
> > 73 - Brian
> >
> > On 8 Feb 2006 at 22:31, Bill Coleman wrote:
> >
> > > On Feb 7, 2006, at 8:39 PM, Allen Jones wrote:
> > >
> > > > My latest project is an HR-10 which has been sitting
> > > > in a closet for several years.  It seems to work well
> > > > but I need to restring the dial.
> > > >
> > > > Any suggestions for worthwhile mods that don't require
> > > > hole drilling?  I believe adding voltage regulation to
> > > > the HFO is advised.
> > >
> > > There were a bunch of mods listed in a 73 magazine article. I think
> > > it was the February 1972 issue, maybe it was November 1972. Can't
> > > remember.
> > >
> > > If I can remember the mods, it consisted of replacing the 6X4 with
> > > silicon rectifiers, an improved audio-derived AGC system using
> > > silicon diodes, 0A2 regulation of the BFO and HFO. It did require one
> > > hole to be drilled in the chassis to accomodate the 0A2.
> > >
> > > I made these mods back in 1975, when I had an HR-10B. The AGC was a
> > > vast improvement, and stability was much improved with the 0A2.
> > >
> > > Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
> > > Quote: "Not within a thousand years will man ever fly!"
> > >              -- Wilbur Wright, 1901
> > >
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