[AMRadio] Mic recomendation for rig

Rob Atkinson ranchorobbo at gmail.com
Mon Sep 21 17:32:45 EDT 2009


You are one hernia ahead of me hi hi; I also have to be careful
lugging heavy iron, rigs etc. around.   It sounds like you have a good
plan and are on track.  I don't think anyone here has given you bum
advice but with AM and audio there is a lot of it.  Todd and Paul VJB
are dead on but I would work on just getting the rig running and keep
it simple at first with the 55 and get used to operating it.  Do the
usual stuff looking at the envelope on a scope running the rig into a
dummy load and listening on a seperate rx with a wide passband.  Make
sure ur not going over 100%, no RF in the audio, or distortion and so
on.  Once you are comfortable with the setup then you can start
thinking about experimenting with the rig and trying some external
processing if you are interested in that.    You can do great with a
mic preamp, dbx equalizer, compressor and a broadcast grade peak
limiter.  These last two can be found on eBay for not much money--old
Orban blue front panel compressors show up there like the 422A and
424A and are usually overlooked by audio fanatics.  These make great
sounding processors for ham AM.


Rob K5UJ

On Mon, Sep 21, 2009 at 3:08 PM, Gerald Stockinger
<cliogunsmith at centurytel.net> wrote:
> Good Afternoon and thanks to all that replied and there were many. When
> the name Shure 55 came up I went and looked and sure enough I had one
> upstairs in the closet. Bob W0YVA uses one and he runs it into the phone
> patch jack which  is 600 ohms. So that is a place to start. Many
> suggested the EV 664. I have one of those but it might need a new
> cartridge. As for a new mic many had good things to say about the Heil
> PR line and I might try a PR30 at some later date. To Paul VJB my rig is
> stock and I am looking into that. Todd my KW-1 is s/n 115 so I think
> that is somewhat later. Supposedly there were 150 plus two prototypes
> made. I have the whole set of Electric radio and will explore #23 & # 54
> tonight. Bob W0YVA has sent me info on jumping out the clipper and
> eliminating the splatter choke. I have some cap changes from him as well
> and I will consolidate all this info so when I do it I only have to pull
> the audio deck once. The last time my Doctor was inside of me he fixed
> three hernia's. If I create any more I will catch  hell from him. He is
> a personal friend and saved me from Colon Cancer about two years ago and
> watches me like a mother hen. So one time out for the audio deck has to
> get everything. Again thanks to everyone that responded to my inquiry
> with your thoughts, suggestions, and just the spirit of camaraderie that
> I have enjoyed throughout my 52 years in ham radio.  73
> Jerry K9GOZ

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