Input vs. Output

[Jim Altman]

It would depend on the efficiency of the amplifier.  Assume about 60% as an
average.  It may be higher.  Or use a wattmeter and figure it out.

Jim Altman
jaltman at altlaw.com


-----Original Message-----
From: Heathkit Owners and Collectors List [mailto:HEATH at LISTSERV.TEMPE.GOV]
On Behalf Of Tom Buchanan
Sent: Saturday, December 10, 2005 1:02 AM
To: HEATH at LISTSERV.TEMPE.GOV
Subject: Input vs. Output


I just got my first tube type rig (Heathkit HW-16) on the air and have been
enjoying making some contacts with it.  I notice the older rigs refer to RF
power input and modern rigs RF power is output.  Is there a calculation to
figure equivalency for input watts to output watts?

For example, the HW-16 manual specifies 50 to 90 watts input and on the
antenna tuner/wattmeter it shows 30 to 60 watts output on 40m.    

73,

Tom
KG4KGY

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