[Elecraft] K2 - K60XV Transverter Keying Output Questions
Don Wilhelm
w3fpr at embarqmail.com
Thu Jan 24 16:41:45 EST 2008
Steve,
There *is* room (but just barely) for an RCA jack just above the key
jack. Take a look at where the jack is located in the photos of my K2
Fixed Audio Output article on my website http://w3fpr.qrpradio.com. I
have since moved the fixed audio output to the microphone jack and now
have that same jack wired just for the keying output of the K60XV.
The 2N7000 data sheet should provide the information about the voltage
and current capacity, and then you will have to compare that to the
relay voltages and draw from your transverters.
73,
Don W3FPR
Steve Kavanagh wrote:
> I am part way through the build of my K60XV and am
> trying to sort out how to interface it to my various
> existing homebrew and non-Elecraft transverters. A
> couple of questions have arisen:
>
> (1) I hope to use the transverter keyline output
> (J2-pin 2 on the K60XV), but there is no connector (or
> provision for one on the rear panel). I have the
> K160RX installed and would like to be able to use it
> with either the QRP top cover or the KPA100 installed,
> so I can't really use any of the existing holes. I am
> thinking of perhaps squeezing in a 3/32" jack just
> above and to the left (as seen from the rear) of the
> key jack. Has anyone else come up with something
> better ?
>
> (2) There appears to be no specification given in the
> K60XV manual for the maximum voltage and current that
> can be keyed by Q3. I can probably figure it out from
> the 2N7000 data sheet, but I wonder if someone else
> has already done this or has some experience, in
> particular with transverters where the control input
> is connected directly to relay coils (such as Down
> East Microwave's transverters, for example) ?
>
> 73,
> Steve VE3SMA
>
>
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