Brian ....
Better yet - If you can find a MFJ / Ameritron ARB-702 before you leave ....
http://www.ameritron.com/Product.php?productid=ARB-702
We've used them with SB200 and FL2100 amps on a couple trips to FP and
they are great and pretty much bullet proof.
73 es GL
Hank K8DD
----- Original Message -----
From: "Brian Moran" <[EMAIL PROTECTED]>
To: "Don Ehrlich" <[EMAIL PROTECTED]>
Cc: <[email protected]>; "Ralph Parker" <[EMAIL PROTECTED]>
Sent: Saturday, November 22, 2008 2:21 PM
Subject: Re: [Elecraft] K3: Keying SB-200 addendum
I am the parts delivery guy :-) there's a great one transistor one resistor
circuit for doing this that I have used in the past. I'll bring some relays
and back emf diodes too
Brian soon to be vp5/n9adg
Sent from my iPhone
On Nov 22, 2008, at 10:39 AM, "Don Ehrlich" <[EMAIL PROTECTED]>
wrote:
Ralph,
A reed relay is a fragile device and may not survive the transient current
and voltage spikes present when switching the SB200 relay. Be sure to have
your friend bring a relay robust enough to handle the load presented by the
relay coil in the SB200.
Don K7FJ
Tnx for your comments, guys.
I'm at VP5W, and no Radio Shack on the island :-(
I did bring a little relay interface, but the reed relay has given up the
ghost. Fortunately, we have one op coming from Seattle next week, and he
can bring a replacement.
It is a borrowed SB-200, otherwise I would have installed a soft-key mod.
Oh well....
Elecraft had better hurry with their KPA800!
VE7XF
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
