Fred -
It depends upon 'how much' reduction you need. If having the LOAD
control at minimum (0) and turning the GAIN down to no less than 9
o'clock is still too much power, then you may need additional
reduction. The BEST way is to reduce the Screen voltage on the PA, but
this is not simple to do unless the VHF mod has been done to the
transmitter. Another good way is to apply a negative voltage to the ALC
jack on the rear panel, adjusting it for the output power you want.
Most amplifiers with ALC will take care of the problem automatically,
assuming the ALC output from the linear is sufficient.
Detuning the RF TUNE is 'probably' ok, but there is a risk of spurs
since the reason for this selectivity is to reduce unwanted mixing
products, especially on the higher bands.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
[email protected] wrote:
/Using a Drake "B" line. What is the best way to reduce the drive to
the Amp.? Reduce mic. gain or reduce transmitter output of by using
the preselector?/
//
/ How do you do it?/
//
/Thanks /
//
/73 de Fred WD8ADG/
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