[Elecraft] RX antenna protection

[John K9UWA]

We have been operating this way with full break-in for many years using the 
KD9SV products. First it was just the "Front End Saver" which removes and 
grounds the incoming rcv antenna from your radio during transmit. As a "Fail 
Safe" the device also prevents the Amplifier from working by removing the 
PTT line to the amp if by any chance the relays in the KD9SV device fail to 
operate. Later it is now incorporated into the various RBOG and other 
Pre-Amp devices that KD9SV sells... through DX-Engineering. 

Disclaimer Statement: Yes I am a friend of Gary's. Call me a more than 
happy customer. I complained many years ago after I fried the front end of 
my IC-765 radios a couple times and Gary started building these devices. 
They Work and I am happy. No more blown front ends no more blown 
pre-amps.

John k9uwa

> Just a note to say that years ago, I had a B&W Electronic Antenna Switch (I
> think it was called) that had one or two tubes in it. It worked perfectly to
> bias the receive completely and immediately as soon as transmit was detected. 
> It allowed full break-in for CW work.  I would like to see something like this
> again today in solid state.  I think this would be the ticket for what you need.
> I havenTMt looked, so I donTMt know if anyone is marketing such a device.
> 
> Rich, n0ce

John Goller, K9UWA & Jean Goller, N9PXF 
Antique Radio Restorations
k9uwa at arrl.net
Visit our Web Site at:
http://www.JohnJeanAntiqueRadio.com
4836 Ranch Road
Leo, IN 46765
USA
1-260-637-6426