[Collins] Replacement of the D104 Astatic Mike Element w/Heil HC-5

Mon, 29 Sep 2003 09:56:06 -0500

I have already used the HC-5 in a dead D104.  Works good.

The D104 accepts the Heil HC-5 element w/o mechanical problem.  You will
need some medium-soft foam to cut & place around the HC-5 to hold it in
place.  The blob of cotton behind the black grill cloth should be removed so
it doesn't muffle the HC-5.  The black cloth can be tacked in place using
some cloth glue around the edges (check the XYL's sewing basket, if needed).

The HC-5 is low impedance.  Abt 2000 ohm @ 1KHz according to the Heil site.
Hence, you need the low to hi Z miniature transformer that Heil sells.

FYI:  The HC-5 is lower output than the D104 so you can close talk and not
over drive the mic input amp and/or not pick up back ground noises like the
amp fan.

Most everyone likes the sound of the HC-5 over an old D104 with an original
(now questionable) crystal element.

If you want to protect the chrome on the UG8 stand use some clear shrink
tubing to cover the upright mast from top to bottom.  Trim a hole for the
PTT "hook" at the top using a hobby knife.

Loss of the old xtal element is not the end of the venerable chrome
lollipop.  Nothing says "ham radio" like the ol' lollipop.

John
K0LFA

PS
While you're at it, replace the old cord with a new coil cord.  Try to get a
nine footer.

----- Original Message -----
From: "Joel R. Hallas" <[email protected]>
To: "Robert Lawson" <[email protected]>
Cc: "David Knepper" <[email protected]>; <[email protected]>
Sent: Sunday, September 28, 2003 2:00 PM
Subject: Re: [Collins] Astatic Mike Element

> When mine dies, I will try to squeze in a Heil HC-5. Anyone had any luck
or
> experience with that option? I have found they work very well with my
recent gear.
>
> 73, Joel
> W1ZR
>
> Robert Lawson wrote:
>
> > Duane et al,
> >
> > I was on the phone last week with Duane Gregg, Senior Technician with
> > Omnitronics, ordering a replacement crystal element for my D-104.  This
all
> > before you emailed out your "they can't get anymore raw crystals"
message.  I
> > asked him about the ceramic element for the D-104, and he said "We have
had not
> > made them in years.....none in stock either".
> >
> > Regards to all,
> >
> > Robert   WPE4FGR W4RL   Pensacola Florida
> >
> > David Knepper wrote:
> >
> > > I wonder if the ceramic element will be readily available once the
crystal
> > > element stock is depleted?
> > >
> > > The preferred  element is  the ceramic element rather than the crystal
> > > element because the latter is suceptible to moisture, etc. and goes
bad in
> > > time.  Many of those shiny D-104's that we see at hamfests are no
doubt
> > > defective mikes because the crystal element has gone bad.
> > >
> > > Thank you.
> > >
> > > Dave, W3ST
> > > Secretary to the Collins Radio Association
> > > Publisher of the Collins Journal
> > > www.collinsra.com
> > > ----- Original Message -----
> > > From: Cam and Juli Hedrick <[email protected]>
> > > To: <[email protected]>
> > > Sent: Sunday, September 28, 2003 8:49 AM
> > > Subject: [Collins] RE: Collins digest, Vol 4 #246 - 1 msg
> > >
> > > > HI,
> > > > I would like the info to order the mic elements for my D-104 that I
use
> > > with
> > > > my rigs.  Please post this info, I would love to have this station
still
> > > in
> > > > like new condition when it get passed on to the next owner....Not
anytime
> > > > soon I hope.
> > > > Cam
> > > > WA4JKW
> > > >
> > > > -----Original Message-----
> > > > From: [email protected]
> > > > [mailto:[email protected]]On Behalf Of
> > > > [email protected]
> > > > Sent: Sunday, September 28, 2003 3:04 AM
> > > > To: [email protected]
> > > > Subject: Collins digest, Vol 4 #246 - 1 msg
> > > >
> > > >
> > > > Send Collins mailing list submissions to
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> > > > than "Re: Contents of Collins digest..."
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> > > >
> > > > Today's Topics:
> > > >
> > > >    1. D-104 Crystal Element (David Knepper)
> > > >
> > > > --__--__--
> > > >
> > > > Message: 1
> > > > From: "David Knepper" <[email protected]>
> > > > To: <[email protected]>
> > > > Date: Sat, 27 Sep 2003 19:22:53 -0400
> > > > Subject: [Collins] D-104 Crystal Element
> > > >
> > > > You may want to consider order an extra crystal element for your
D-104
> > > that
> > > > you use with your Collins.
> > > >
> > > >
> > > > Dave, W3ST
> > > > Secretary to the Collins Radio Association
> > > > Publisher of the Collins Journal
> > > > www.collinsra.com
> > > > ----- Original Message -----
> > > > From: Duane Fischer, W8DBF <[email protected]>
> > > > To: <[email protected]>
> > > > Sent: Saturday, September 27, 2003 5:40 PM
> > > > Subject: [Hallicrafters] If You Own D-104, Please Read
> > > >
> > > >
> > > > >
> > > > >
> > > > > Per our conversation on the net today. The Astatic D-104 mic
cartridges
> > > > > have been discontinued. They can no longer get the crystal
material used
> > > > to
> > > > > manufacture them. They are limiting orders to 2 elements per
customer
> > > > until
> > > > > their stock is exhausted.
> > > > >
> > > > > Part Number PMC320
> > > > > Omnitronics, LLC
> > > > > 341 Harbor Street
> > > > > P.O. Box 120
> > > > > Conneaut, Ohio 44030
> > > > > Phone: 440-593-1111
> > > > > Fax: 440-593-6724
> > > > >
> > > > > Regards,
> > > > > Mark, WB0IQK
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > List Administrator: Duane Fischer, W8DBF **for assistance**
> > > > > [email protected]
> > > > > ----
> > > > > Hallicrafters Collectors International: http://www.w9wze.org
> > > > > ----
> > > > > http://mailman.qth.net/mailman/listinfo/hallicrafters
> > > >
> > > >
> > > >
> > > >
> > > > --__--__--
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> > > > End of Collins Digest
> > > >
> > > >
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>
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