Sick Marauder

[Larry Knapp]

Larry - Welcome to the HX-10 club.

I don't have my Marauder manuals here at work, but it already sounds like you
have made great progress getting this very nice transmitter back to life.  If
you are truly getting 110W out into a dummy load, then you have grid drive.  My
first question would be, when tuning up (or if the tx is just turned on) do you
get any indications of any kind on the HX-10's meter?  That is HV, or plate
current....etc.  If you are, but it's not reading correctly, (or are not) the
problem may be in the metering circuit.  Look closely at your manuals schematic
at the metering.  It's not real complicated.  There are some resistors in the
metering that need to be checked, which is what I wouldlook at first.  I don't
know their R numbers but if you have gone this far, I'm sure you can figure
this out.

This is a great list and has many very good technicans that use this, so I'm
sure we can all assist you in fully restoring this transmitter.

73, Larry KC8JX

> --- lgrindel <lgrindel at MAIL.EV1.NET> wrote:
> Date:         Thu, 21 Apr 2005 06:12:29 -0500
> From:         lgrindel <lgrindel at MAIL.EV1.NET>
> Subject: [HEATH-TEMPE] Sick Marauder
> To:           HEATH at LISTSERV.TEMPE.GOV
 
> Good Morning Guys!
> Just purchased an old Heath Marauder, and am having some trouble. When I
> first got it home, there was no output on any band. After checking tubes, and
> voltages, everything looked fine.  I tried adjusting the het osc, and driver
> coils, and that seemed to be the problem. Seems someone got in there and just
> started turning. Some were off a couple of turns! I now have around 110 watts
> into a dummy load, but still get no indication of grid drive. Also when I key
> it through the mic, (PTT), I get full output. Adjustment of the carrier null
> and balance make no difference. Just wondering if anyone has any ideas, or
> maybe has "been there" before. Thanks in advance guys.
> > 73 Larry Grindel KD5ECG 



		
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