RadioBanter - View Single Post

February 1st 05, 04:18 PM

From: (Terra=A0Dactyl)
=A0=A0For those that have one or have used one, what does a Palomar 300
Elite put out in honest RMS watts with a tone? =A0 There appears to be
two versions of the amplifier . The version I am asking about is the one
with two SD1446 transistors, and not the one with two MRF-455
transistors. I'm reluctant to believe anything a Dosey peak meter says.
=A0=A0=A0=A0I have been playing with one on the bench and the output is
flakey. One moment the meter says 150 watts on sideband with a tone, and
another minute is says about 80 watts with a tone. The broadband output
transformer gets VERY hot on mine, and that is going in to a 1000 watt
oil filled dummy load with 1.1 SWR. One of the legs on the 1000 pf
capacitor soldered to the broadband output transformer did not appeared
to be soldered well, so I re-soldered it. The amplifier is now showing
about 80 watts consistently, and the output transformer is no longer
getting so hot. I'm just wondering whether I fixed it or broke it. The
two sd1446 transistors check good when I test them one leg at a time
with a diode checker. I am using an average meter to measure the output.
-TD
_
About 225 PEP. 250 would be pushing it to the MAX.