Gary -
My keyer was in QST for December !954.
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
<www.k4oah.com>
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 <wa9...@tbc.net>
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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