[Milsurplus] TCK-4

[WF2U]

The keying relay is a 12 VDC circuit. The terminal strip on the bottom on the transmitter has the points to connect the key directly. The same points go to the 4 or 6 wire standard Navy remote box. The MO is stable and doesn't any diddling or modification with a VR tube, it is very stable as it is in room ambient temperature after a warm-up period. I don't use the MO oven/fan at all. It may be useful in extreme ambient temperature variation.

73, Meir WF2U
Landrum, SC

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On Feb 16, 2017, 1:29 PM, at 1:29 PM, "Kenneth G. Gordon" <kgordon2006 at frontier.com> wrote:
>Well, I am reading the manual. The TCK is an interesting rig. It
>actually weighs about 100 
>lbs less than the BC-610s I have used in the past, but is far more
>complex.
>
>I find the grid-modulation scheme to be particularly interesting. It
>seems to me to be a rather 
>big waste of resources. ;-)
>
>I get an almost, "Why bother?" thought in my head while reading about
>it. 75% modulation 
>at best with 15% distortion is certainly not the best use of the
>resources, it seems to me.
>
>Secondly, it seems to me that stability of the MO would be improved by
>simply 
>voltage-regulating the oscillator tube's screen, rather than using
>dropping resistors.
>
>Then there are "issues" with the MO boxes internal blower fan.
>Apparently, there were 
>nearly constant problems with the motor bearings and with lubrication
>of it.
>
>I can hardly wait to get this thing into my shack and in operation.
>
>The keying system is interesting. I cannot see using the normal 115 V
>keying circuit, but 
>we'll see. I don't have either a 6-wire or a 4-wire remote control
>system here.
>
>My favorite mode is CW, so I am looking forward to using this thing on
>the air.
>
>I wonder how many of the TCK series were used, and where they were
>used. How many at 
>fixed locations for instance?
>
>The original AC supply is a real hum-dinger. Huge, heavy, complex. I'm
>kinda glad I don't 
>have one.
>
>Later,
>
>Ken W7EKB
>
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