Hi Gary,
I have that handbook, it's on pg 597, 'A "9TO" Electronic Key'
My book is in pristine condx, I bought it on my honeymoon in 1963, and
it's been well cred for since. I can probably flatten it to make scans
without hurting it, but it might be out of focus near the center.
73,
Al, W8UT
www.boatanchors.org
www.hammarlund.info
"There is nothing -- absolutely nothing -- half so much
worth doing as simply messing about in boats"
Ratty, to Mole
On 1/2/2012 8:02 PM, Gary Winblad wrote:
THANK YOU everyone for all the info. It has been a great trip down
memory lane.
I been googlin. Garey, I saw several references that you are right, it
was never
published. Wow, I KNEW I didn't build it from a Hallicrafters manual..
I finally found a reference that must be correct.. it WAS the W6SAI
Radio Handbook,
but it was the 1962 issue. I pulled the covers off mine and yes, it has
the same
tube lineup as the HA-1 (including BOTH a 0B2 and an 0A2!!).
I remember I got the part layout from the article, it uses a unique
"dual in line"
terminal board to hold the resistors and capacitors. All the kid could
scrounge
was two similar but shorter boards, so that is what is in there. And as
someone
mentioned, the sidetone is pretty nasty. I was able to cobble in a TONE and
VOLUME control that sort of works..
So does anyone have a 1962 version of the W6SAI Handbook or can find a
link??
73,
Gary
WB6OGD
----- Original Message -----
From: Garey Barrell <k4...@mindspring.com>
To: Gary Winblad <garywinb...@comcast.net>
Cc: drakelist@zerobeat.net
Sent: Mon, 02 Jan 2012 19:59:47 -0000 (UTC)
Subject: Re: [Drakelist] Slightly Off-Topic: EICO 717 KEYER
Gary -
The 'TO Keyer' was never published!! I have a copy somewhere of the
original schematic made by Jim
Ricks, W9TO, that he sent out to interested individuals. Apparently he
was already in talks with
Bill Halligan to market it, as the schematic was marked 'do not
distribute' or something to that effect.
I also have a '59 Handbook here (I think that's the brown one) and will
see if I can find it. I
believe it's on the internet as well. Here is one location.
A quick scan of the INDEX does not show an electronic keyer of any kind.
May have been a later edition.
My first keyer was built about 1959 from an old (then!) QST article. Had
a 2D21 Thyratron, a 12AT7
divider, and an 0A2 regulator. It worked 'ok' but was extremely
sensitive to line voltage changes.
Unfortunately my Mom got a new electric skillet for Christmas that same
year, and while I'm trying
to NCS a net upstairs she's fixing dinner in the kitchen. Every time
that @%$# skillet would turn
ON (or OFF) the line voltage would shift enough that I had to readjust
the thyratron for the correct
speed. Made things interesting! :-)
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
Gary Winblad wrote:
> To go even more Off Topic...
>
> YES Curt, you will like it a lot! W9TO was the designer, hence the name.
>
> As a 15 year old kid in 1967 I built my version in our high school
electronics
> shop class. It has never missed a DIT since! As a confirmed Drake lover
> even back then, I folded up a Drake style chassis/box so it matched my
> R-4A. As a kid, and as my first attempt at using a sheet metal brake and
> sheer, it came out a little bit big, but it still matched Drake
pretty well if I don't
> say so myself...
>
> My request:
> I built it from a design in (I am pretty sure) in a 1959 W6SAI Radio
Handbook
> than my dad (SK) had. As copy machines hadn't been invented yet(!?) I of
> course don't have a copy. DOES ANYONE have this manual and could make
> me a copy of the article so I at least have a schematic in case it
ever breaks???
> Or even just confirm that there is indeed a W9TO keyer in there.
> I have googled and found that there was a pdf copy on line at one
time but it
> seems to have gone away..
>
> TIA and HAPPY NEW YEAR to all,
> 73,
> Gary
> WB6OGD
>
>
>
> ----- Original Message -----
> From: Steve Berg
> To: drakelist@zerobeat.net
> Sent: Mon, 02 Jan 2012 16:51:59 -0000 (UTC)
> Subject: Re: [Drakelist] Slightly Off-Topic: EICO 717 KEYER
>
> Curt, you will like that TO keyer a lot. I have had one for more than
> 25 years. It is a very good idea to replace all of the capacitors in it
> as the electrolytics are shot by now, and the black beauties are not in
> the best of shape, either. Before I replaced the black beauties, the
> speed of the keyer would vary quite a bit with changes in humidity.
> Mine has some quirks with the power supply and VR tubes, but it still
> works very well. I will eventually get those sorted out, too.
>
> 73,
>
> Steve WA9JML
>
> On 1/2/2012 7:15 AM, Eddy Swynar wrote:
> >
> > On 2012-01-01, at 7:50 PM, Curt Nixon wrote:
> >
> >> Just picked up a Hallicrafters TO keyer for the vintage desk also.
> >> Same keyer basically.
> >
> > */Hi Curt,/*
> >
> > I think that the one major difference betwixt the /EICO/& the
> > /Hallicrafters TO/keyer is that very same "...weak link" in the chain
> > that affected mine here, i.e. the /TO/used (I believe) a sealed
> > mercury-wetted keying relay, whereas the /EICO/went with that
> > reed-relay-in-a-field-coil route to achieve its external keying...
> >
> > I say weak link as no offence to the /EICO/designers, but rather, as a
> > potential source for trouble that may well require the owner's
attention
> > at some point in its future...trouble is, if said owner is not all that
> > familiar with the whys & wherefores of reed relays / field coils (my
> > right hand is raised!), then one can through a /LOT/of vexing gyrations
> > & travails in the trouble-shooting process that are simply not
> > necessary...! *: >)*
> >
> > */~73~ de Eddy VE3CUI - VE3XZ/*
> >
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