toggle quoted messageShow quoted text
Hi David and the group.
Just curious, why not tie all the grounds together? am I missing something here? With my "multi switching" box all the grounds are tied together and I've had no problems...
God Bless all de Wayne - KC0PMH
On Tue, Oct 15, 2013 at 4:15 AM, David Martin <davemrtn@...>
I agree, you should not tie all the
grounds together, it can cause problems... been there done that.
You can get a 3 pole rotary switch from Jameco and that will allow
you to switch 3 circuits. You'd want to do this if you are using
an iambic key.
You will need to mount any jacks used on a non-metalic surface to
keep the ground circuits isolated from each other.
On 10/14/2013 10:57 PM, Todd F. Carney / K7TFC wrote:
I'm with WB9DLC. A rotary switch is the way to go. Use
one pole for the signal and one for each ground. That is,
don't use a common ground. Run a separate ground from each
Also, I'd be inclined to use a "break-before- make"
rotary rather than a "make- before-break" variety.
On Oct 14, 2013 8:46 PM, "WB9DLC -
Mike Barrell" <wb9dlc@...
Radio Shack has a 2 pole 6 pos.
Switch Model: 275-1386.
Can't imagine making it any more
Mike - WB9DLC
On Oct 14, 2013 11:40
PM, "n0jrn" <n0jrn@...
BUT, I have all the isolation I
need inside the electronic
keyer. I just want to switch it's
output to multiple rigs
and not sure if I need anything to
protect from RF etc.
I'm looking into this for a friend
and he wants to use his
keyer on 4 seperate rigs without
plugging and unplugging.
I don't see much of a problem with
just switching the output
of the keyer.
Just curious if I need to protect
the circuit in some fashion.
----- "Nate Bargmann" <n0nb@...>
> * On 2013 14 Oct 21:26 -0500,
> > Gang:
> > IF you have an
electronic keyer and you want to
> > it with multiple rigs
without plugging and unplugging
> > all the time, what
circuit would you use to switch
> > between rigs.
> > Electronic keyer would
go to the switch and switch
> > to multiple outputs.
> > Doesn't seem like it
would take much more than the
> > switch but would you use
diodes on the outputs,
> > capacitors on the
> Seems like the ideal
application for optocouplers. Bias
> positive keying and the other
for negative keying (TS-520,
> etc.). Use as many as needed
for multiple rig outputs.
> between rigs and between the
tigs and keyer.
> 72, de Nate >>
> "The optimist proclaims that
we live in the best of all
> possible worlds. The
pessimist fears this is true."
> Ham radio, Linux, bikes, and
> 4SQRP Website: http://4sqrp.com
> OzarkCon is coming April 4-5,
2014 in Branson, MO
> View Details at http://www.ozarkcon.com/index.phpYahoo!
David Martin - K5DCM ---o0o---
Mountain Home, Arkansas
Guns don't kill people, any more than spoons & forks cause
I guess most people don't think because it's too tedious for them!
What I like about naps is, I can get them done while I'm sleeping.
If they can, they do; without thinking if they should.
QRP - EFFICIENCY AND SKILL, NOT POWER.
I'm British by birth but American by CHOICE!
Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...
The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.
God Bless from Wayne Dillon - KC0PMH
2 Cor 5:17
1 Jn 2:17
4 State QRP Group NCS - 40m & 160m
FPQRP #342 (Flying Pigs QRP Club)
NAQCC # 0759