[Amps] hf-2500

[K1TTT]

Agreed, that is why I have modified one to do only 40-10m... removing the
80m and 160m coils from the toroid removes the shorted turns problem and
makes it run very nicely doing rtty on 40m.  also the one I did for 80m
single band replaced the tapped toroid with a single one, unfortunately the
only way to fit it in the case was to remove the high band coil and mount it
above the deck.

Oh, and Command is out of the business, the line is now owned by Dedicated
RF at http://www.dedicatedrf.com/


David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net


-----Original Message-----
From: Bill Turner [mailto:dezrat1242 at yahoo.com] 
Sent: Tuesday, December 18, 2012 03:28
To: Amps
Subject: Re: [Amps] hf-2500

ORIGINAL MESSAGE: 
On Sat, 15 Dec 2012 13:32:51 +0000, K1TTT wrote:

> This one was also modified to only do 40m-10m because of melting the 
>low band toroid, it is now the 2nd radio amp on the so2r station.

REPLY: 
The HF-2500 should not be used on 40 meter full power RTTY, or any lower
frequency either. I melted the toroid twice on mine on 40 meters during a
RTTY contest. 

It does not use a toroid on 20-10 meters and thus is ok for full power RTTY
there. 

I have owned three different Alphas (89, 91b and 9500) and they DO have an
adequate toroid for RTTY contesting. Command should take a lesson. 

73, Bill W6WRT


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