I have used the AL-1500 for RTTY and SSTV at 1500 watts for contests, I just
turn the fan up to leaf blower mode and it runs just fine. I have not been
able to break the thing yet, It sure seems to be the best amp that
MFJ/Ameritron make for sure and for the price, I think I paid 2k for it 5
years back.
-Mike
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Al Kozakiewicz
Sent: Wednesday, April 06, 2011 5:36 PM
To: amps@contesting.com
Subject: Re: [Amps] Alpha vs Henry
1500 watts continuous for 30 minutes; 2500 for 30 seconds.
Even if I do nothing but call CQ every 2 seconds, that's probably "only"
about a 60% duty cycle. I'm just trying to get a feel for how much derating
is prudent when using the thing for extended periods of time.
73
Al
AB2ZY
-----Original Message-----
From: Carl [mailto:km1h@jeremy.mv.com]
Sent: Wednesday, April 06, 2011 5:37 PM
To: Al Kozakiewicz; amps@contesting.com
Subject: Re: [Amps] Alpha vs Henry
What does Ameritron say?
Carl
KM1H
----- Original Message -----
From: "Al Kozakiewicz" <akozak@hourglass.com>
To: <amps@contesting.com>
Sent: Wednesday, April 06, 2011 5:05 PM
Subject: Re: [Amps] Alpha vs Henry
> Can anyone tell me how much power an AL-1500 is rated to produce at a 100%
> duty cycle?
>
> During RTTY contests and outputting about 1000 watts, the tube side of the
> cabinet gets mighty warm. The power supply side seems cool - but then,
> that's with the cover on. I don't know how hot is too hot and it would be
> useful to know at least how much continuous power the supply is rated for.
>
> Tube cooling is probably another issue...
>
> Al
> AB2ZY
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|