Topband: Powering preamp

[K9AY]

Pete,

Check the ratings for the device itself, plus the design of the preamp.  In
general, higher voltage will result in higher quiescent current and better
strong signal handling, but it might increase the noise figure and may
exceed the device's dissipation ratings.

The LT-1001A  is rated for Vce of 20V and 200 mA max current.  If it is
properly heat-sinked, I don't see any problem operating it at the high end
of the 11-16 V range.

73, Gary
K9AY
_____

> How important is it to regulate the DC supplied to a topband preamp?  If
> the preamp is rated to run on a range of voltages ((in this case, an ARR
> P1-30/20VD rated for 11-16 VDC at 40ma) is it best to run it near the top
> limit, or the bottom, or doesn't it matter?  The active device is an
> LT-1001A bipolar transistor.
>
> 73, Pete N4ZR