This link from W5EZY should make all the old D-104's come back to life.
Chris W7CTH
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http://elecraft.365791.n2.nabble.com/D104-mic-tp5276371p5290288.html
Sent from the [K3] mailing list archive at Nabble.com.
Replacement crystal elements are available for $12 on ebay.com, Grant
Bob. They are not the genuine article but they are a similar size and
the speech quality is indistinguishable from the original Astatic
version; I use one.
73 de David G4DMP
In a recent message, Bob Stevens
Does anyone have experience with the amplified D104?
Dick, KA1SA, #911
At 10:45 PM 7/11/2010, Paul Christensen wrote:
The cartridge in mine went bad; too much West Texas heat I guess. But it
still looks good :-)
Mouser carries close replacements of the original Astatic crystal cartridge.
Does anyone have experience with the amplified D104?
Dick, KA1SA, #911
I cut those boards out of mine, except for the PTT switch mounting. I prefer
something more simple and easily controlled.
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I'd think that way to go would be to put a $ .50 electret capsule or
one swapped from an old telephone set ( you know the junkers) that
used an electret ,.,,,
set the bias on, tweak up the EQ IF preferred,,,and have a great
sounding d-104...
I put one in front of a dynamic cartridge in one
On Mon, 12 Jul 2010 10:22:06 -0400, Bill NY9H wrote:
I'd think that way to go would be to put a $ .50 electret capsule or
It worked for Bob Heil!
73, Jim K9YC
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Does anyone have experience with the amplified D104?
Dick, KA1SA, #911
Dick,
If you have a D104 with the original crystal element, you can build the
below amplifier to interface with your K2/3. I did, and it worked great;
had really good punch for dxing. I wired it to get power from the K2
Thanks. This is what I was looking for. The D104 is a classy looking mic.
Dick
At 03:46 PM 7/12/2010, Mark - W5EZY wrote:
Does anyone have experience with the amplified D104?
Dick, KA1SA, #911
Dick,
If you have a D104 with the original crystal element, you can build the
below amplifier
Am surprised no one mentioned that the D104 was made with two types of
elements, crystal, believe they were Rochelle salts or something like that
and ceramic. If I remember correctly the ceramic was the D104C, had lower
output and could withstand heat and rougher handling. I copied Tom's J310
Why not?
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Robert Kirkland
Sent: Monday, July 12, 2010 7:12 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] D104 Mic
Am surprised no one mentioned that the D104 was made
On 7/10/2010 7:37 PM, Grant Youngman wrote:
I understand it, but it is a shame that Astatic can no longer
economically manufacture the original cartridge for something
this venerable, if not downright iconic ...
Definitely iconic - the D-104 was the overwhelmingly first
choice of the
Definitely iconic - the D-104 was the overwhelmingly first
choice of the out-of-band-and-overpower CBers for use with
their modified Yaesu FT-101E transceivers in the 1970s. Some
of those folks eventually saw the light, got their ham
licenses, abandoned CB, and became good hams.
My
Tom and Gang - The D104 is a lot older. It was the first product of
the Astatic Corporation founded in 1934 and made in Youngstown, Ohio.
See http://en.wikipedia.org/wiki/Astatic_Corporation
73 Bob W7AVK
K3/100 kit s/n 4365
On 7/11/2010 1:42 PM, Tom W8JI wrote:
My first exposure to
I purchased my first one in 1959 with the adapter for a standard mic stand --
couldn't afford the PTT stand in those days, and a DX-40 didn't have PTT
anyway. Ultimately I had (and still have) several sitting on the shelf,
including the boxed version Astatic sold just before the end of
I have had my D104 since 1953 (used with a Viking II). It fell off
the desk one day and I cringed and and looked inside to see that the
crystal element had become detached. Isent it to Astatic asking them
to give me an estimate for repair. The repaired mike came back by
return mail, no
Subject: Re: [Elecraft] D104 mic
I know a lot of people do this. But once done, it's no longer a D-104 --
it's just one more HC-5 in a fancy housing. This is one case where it may
look like a duck, but doesn't necessarily sound like a duck. I recognize
some may consider that a plus :-)
I understand
Bob,
Put a Heil HC-5 in it (Heil provides a kit) or put an electret element
in the D-104 head. It will work great again.
73,
Don W3FPR
Bob Stevens wrote:
The cartridge in mine went bad; too much West Texas heat I guess. But it
still looks good :-)
The cartridge in mine went bad; too much West Texas heat I guess. But it
still looks good :-)
Mouser carries close replacements of the original Astatic crystal cartridge.
Less than $5 each, plenty in stock. I've used them as replacement
cartridges in my ca. 1936 D104 and Shure 70H.
as a
voltage source.
:-)
- Original Message -
From: Jim Brown j...@audiosystemsgroup.com
To: elecraft@mailman.qth.net
Sent: Saturday, July 10, 2010 12:20 AM
Subject: Re: [Elecraft] D104 mic
On Fri, 9 Jul 2010 20:47:36 -0400, Tom W8JI wrote:
It will sound great if you add a J310
I'm using one too. It Works great, good reports and is easy to install.
Plus, the D104 is a beautiful mike.
Hi, Chris,
Heil makes a conversion kit for the D-104. I am using it and have had great
results. If you would like more information, please see my eHam review at
] D104 mic
I'm using one too. It Works great, good reports and is easy to install.
Plus, the D104 is a beautiful mike.
Hi, Chris,
Heil makes a conversion kit for the D-104. I am using it and have had great
results. If you would like more information, please see my eHam review at
http
I know a lot of people do this. But once done, it's no longer a D-104 -- it's
just one more HC-5 in a fancy housing. This is one case where it may look like
a duck, but doesn't necessarily sound like a duck. I recognize some may
consider that a plus :-)
I understand it, but it is a shame
Anyone ever use a D-104 (non amp) on a K3. How does it sound?
Chris W7CTH
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Post:
Chris,
Unmodified, it will probably sound terrible (very 'bright with lots of
highs, weak lows), but with a bit of work, it will sound great - just
like Astatic intended.
The D-104 element is either crystal or ceramic, and wants to work into a
high impedance (like the grid of a vacuum tube
Hi, Chris,
Heil makes a conversion kit for the D-104. I am using it and have had great
results. If you would like more information, please see my eHam review at
http://www.eham.net/reviews/review/65769
73,
John, WA6L
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View this message in context:
: [Elecraft] D104 mic
Anyone ever use a D-104 (non amp) on a K3. How does it sound?
Chris W7CTH
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Post
On Fri, Jul 9, 2010 at 5:00 PM, Don Wilhelm w3...@embarqmail.com wrote:
Unmodified, it will probably sound terrible (very 'bright with lots of
highs, weak lows), but with a bit of work, it will sound great - just
like Astatic intended.
My experience is different.
When I first got my K3, I
Use a 100k to 1 meg ohm resistor from gate to ground. Put a
560 ohm source resistor to ground, and couple the source to the K3 through
a
.47 uF cap.
I agree with comments from Tom and Don. However, the leak resistor from
the FET's gate to ground usually isn't necessary as the crystal
On Fri, 9 Jul 2010 20:47:36 -0400, Tom W8JI wrote:
It will sound great if you add a J310 or similar JFET source follower.
Hams spend WAY too much time hand-wringing about impedance matching in
audio circuits. Audio circuits have not been impedance matched for
nearly 50 years! As long as the
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