[Milsurplus] TCK-4

[Rob Lee]

>"I wonder how many of the TCK series were used, and where they were used. 
>How many at
>fixed locations for instance?"

When I was an RM in the navy (1966-1970), I ran across one TCK-4 still in 
operation at the reserve center on Treasure Island. It and the TCK-4 I had 
been using at home prior to the navy are the only two I've come across. The 
reserve center was also the one time home of K6USN.

Rob
K7TGU



----- Original Message ----- 
From: "Kenneth G. Gordon" <kgordon2006 at frontier.com>
To: <Milsurplus at mailman.qth.net>
Sent: Thursday, February 16, 2017 10:29 AM
Subject: [Milsurplus] TCK-4


> 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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