[Amps] Alpha 87A troubles with fault 17

[Conrad G0RUZ]

I think that you are correct regarding the FT990 here Steve, I had some
problems with this tripping the grid protection on a 4CX1000A amp that I had
at the time. I'm pretty sure that Ian G3SEK did some 'proper' tests. The
output IMD also degraded quite rapidly as the power control was backed off.

Regards

Conrad G0RUZ

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]On
Behalf Of Steve Thompson
Sent: 24 January 2004 08:18
To: amps
Subject: Re: [Amps] Alpha 87A troubles with fault 17


John wrote:
> The Kenwood ALC circuit is very similar .....in the 930 , 940 , 950 ,
> 850 ,870 ......They ALL have overshoot on the leading edge big time
> ......The Yaesu 1000MP series and FT-990 do not ..
I'm fairly sure that the FT990 I used to have did overshoot. As I recall, it
did it big time if you turned the output power down.

Steve

_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps