robert440 wrote:
At one point I did play with creating a dynamic version of the D104, but the
project never flew.

Imagine my chagrin. I just took apart my D104 to check the markings on
the dynamic element I was sold in the '70s. It says MC-320, which,
according to a quick web lookup, is a crystal element.
blush

This may be a good time to install that Heil element...
--
St. John
Utility is when you have one telephone, luxury is when you have two,
opulence is when you have three -- and paradise is when you have none.
-Doug Larson

In article , "St. John Smythe" wrote:
robert440 wrote:
At one point I did play with creating a dynamic version of the D104, but the
project never flew.

Imagine my chagrin. I just took apart my D104 to check the markings on
the dynamic element I was sold in the '70s. It says MC-320, which,
according to a quick web lookup, is a crystal element.
blush

This may be a good time to install that Heil element...

That would seem a simple and easy way out. just hope it sounds the same.
Crystal do not last but ceramic does. The response of the D-104
is shown here.....
http://www.astatic.com/cb/d104m6b.htm
The handheld mic is supposed to have the same element, which is still available.
I would call them.

+22 dB at 3.2 kHz over 100 Hz.

The Heil is very different.

The classic D-104 sound is heard through a transmitter with cutoff's
and compression, and lots of garbling!!


greg

In article , (GregS) wrote:
In article , "St. John
Smythe" wrote:
robert440 wrote:
At one point I did play with creating a dynamic version of the D104, but the
project never flew.

Imagine my chagrin. I just took apart my D104 to check the markings on
the dynamic element I was sold in the '70s. It says MC-320, which,
according to a quick web lookup, is a crystal element.
blush

This may be a good time to install that Heil element...

That would seem a simple and easy way out. just hope it sounds the same.
Crystal do not last but ceramic does. The response of the D-104
is shown here.....
http://www.astatic.com/cb/d104m6b.htm
The handheld mic is supposed to have the same element, which is still
available.
I would call them.

+22 dB at 3.2 kHz over 100 Hz.

The Heil is very different.

The classic D-104 sound is heard through a transmitter with cutoff's
and compression, and lots of garbling!!

One point, The amplifier probably lowers the 100 Hz response, so its
+12 at 3.2 kHz. without the internal amp.

greg

is shown here.....
http://www.astatic.com/cb/d104m6b.htm
The handheld mic is supposed to have the same element, which is still
available.

It's not the same element (I was one of the designers of the mobile
version).
The ceramic version of the D104 element (I think it was MC-320c.) wouldn't
fit in a hand held mic.
However, the response of the mobile ceramic capsule is similar to it's big
brother and probably could be used.