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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