In building the DeMaw HF power amp, (April '89 QST pg. 30, see also Nov. '89
QST pg. 38), he specifies the IRF511 mosfet. In this application would a
IRF510 be okay. Their specs look very similar, (by what I can tell...), but
I wanted to be sure.
Do you think there would be any problem mounting the output filters on little
boards, (sipp boards would be ideal), and bandswitching by changing filters?
Both versions of this amp specify < 1 watt. On an HW8, do I just not load it
as high, (to get less than a watt output), or should I use some sort of
antenuator <sp?>? Anybody got a simple attenuator schematic for this
I've got the power supply out of an old wide carriage Epson printer that
ought to work fine as a ps for this...
TNX I appreciate the help.
Dan Reynolds, firstname.lastname@example.org, KB9JLO
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