With the air flow through an AL-811 I don't think I would push it any farther
than the factory specs. You have only improved the tubes at this point, the
puff of air that the factory fan is giving you is not enough to keep things
cool above these figures and it is doubtful that even at these figures the
plate transformer and caps would last very long with increased stress on the
power supply running at a constant state. You would need to drastically improve
the air flow, which wouldn't take much.
----- Original Message -----
From: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>
To: "amps @ COL" <amps@contesting.com>
Sent: Friday, January 21, 2011 12:50:06 PM
Subject: [Amps] AL-811 & 572's
I have an AL-811 running 572B's instead of 811's. The manual says for RTTY
mode to use a maximum of 150 ma on the grid and 400 ma on the plate for the
811's.
What would be the maximum grid and plate current that I could use on the
572B's on RTTY?
73 & GUD DX,
Thomas F. Giella, NZ4O
Lakeland, FL, USA
nz4o@tampabay.rr.com
NZ4O Solar Space Weather And Geomagnetic Data Archive: http://www.nz4o.org
NZ4O Daily LF/MF/HF/6M Radiowave Propagation Forecast:
http://www.solarcycle24.org
_______________________________________________
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
|