Re: [RTTY] Heathkit SB-1000 On RTTY

["John GW4SKA" <ska@bartg.org.uk>]

My old 3-500Z amp would run around 300-350W output in RTTY contests without 
getting too hot. That was with a decent fan and a chimney round the tube. 
Your plate current for that output would be 225-250mA.
73,
John GW4SKA


----- Original Message ----- 
From: "Thomas F Giella NZ4O" <nz4o@tampabay.rr.com>
To: "RTTY @ COL" <rtty@contesting.com>
Sent: Monday, September 24, 2012 4:07 PM
Subject: [RTTY] Heathkit SB-1000 On RTTY


> I have a Heathkit SB-1000 amplifier with the single 3-500Z. The manual for 
> the Heathkit SB-1000 says a maximum plate current of 400 mA for CW and 550 
> mA on SSB.
> What would be a safe maximum plate current for RTTY operation, which is 
> obviously 100% duty cycle like AM operation?
> 73 & GUD DX,
> Thomas F. Giella NZ4O
> Lakeland, FL, USA
> nz4o@tampabay.rr.com
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