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Old July 29th 03, 04:21 AM
William Warren
 
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"Brian" wrote in message
...
I recently got a good deal (five bucks) on a "ten meter" amp with two 6LQ6
tubes (no, I don't intend to go below 28.3 mHz with it). It seems to

work,
more or less, but I was wondering something.

At about 28.5 mHz, it puts out 43 watts with 4 watts driving it on AM

(using
a CB converted to 10 meters). Is this normal, or are the tubes getting
soft? I understand a pair of 6LQ6 tubes are rated for a lot higher

output,
but I don't know how much I can feed into it without overdriving it. If I
feed in 7 watts AM or 25 watts SSB with an HTX-10, will I earn the

splatter
award of the year?


Brian,

Not enough info: please post these measurements.

1. Plate voltage
2. Plate current, both resting and peak. If possible, measure it with a
two-tone input at 100% modulation.
3. Screen voltage and current (Is the 6LQ6 a tetrode? Sorry if it's not).
4. Grid voltage and current.

Also, provide any other information about the amp that you can: type of
input circuit, output circuit, etc.

HTH.

73, Bill