Author: "Geoffrey S. Mendelson" <gsm@mendelson.com>
Date: Thu, 15 Nov 2007 21:41:46 +0200
I recently purchased (for $5) a headset designed for computer use. It's the "closed" design, so while to me it eventually becomes uncomfortable, before that it makes listening easier by reducing exte
Yes, I have a suggestion.... Use a D-104 mike and forget the computer mike!! "Geoffrey S. Mendelson" <gsm@mendelson.com> wrote: I recently purchased (for $5) a headset designed for computer use. It's
I second that suggestion. Mike N4NT Yes, I have a suggestion.... Use a D-104 mike and forget the computer mike!! _______________________________________________ TenTec mailing list TenTec@contesting.
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 15 Nov 2007 23:47:37 -0600
As a first shot, supply 5 volts (maybe 4.5 from three AAA cells) to the microphone through a 680 series resistor. Couple to the radio through a 0.1 mf disc ceramic capacitor. Probably don't go lower
If it's a standard electret capsule a 2k2 pull up to 3v to 12v DC is usually standard and coupling out via electrolytic or tantalum of a few microfarads is typical. Changing the load resistor varies
The D-104 has proven to be a time tried consistent performer. Unfortunately, many D-104 mike today have an element that is defective. Defective not as in no or low output, but brittle thus one that s
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Fri, 16 Nov 2007 10:36:25 -0600
The D-104 is a crappy microphone for SSB, always has been. It has a rising characteristic intended (in the 30s) to emphasize the highs at the transmitter that were rolled off in the typical AM receiv
Interesting........ the non amplified D-104 that I use on the Collins 32S-1 always receives "outstanding audio" reports. I guess that's due to a crappy radio and crappy microphone combination. 73 Bob
This is absolutely untrue in my experience. I have compared microphones on the Triton 544 and ALWAYS the listeners prefer the D-104. Folks who know me in person say the D-104 has the best representat
While I have never used a D-104 with Ten-Tec gear, I use one with my Hallicrafters HT-32A and consistently receive accolades on my audio. I have done A/B comparisons with my Marauder (vs. EV-638) and
I'm always amazed at the midunderstandings about the poor old D-104. With proper impedance matching, with an appropriate transformer or a suitable preamp with the right load on the D-104 element, the
Exactly, In fact there are a couple things wrong with what he said.To start with many SS rigs have a mic input impedances in the hundreds of ohms , or a few K at most,not 100K's Short of it is connec
I have a 544 and the 580 and I get the best reports with my D-104. I think the talk that it was not a SSB mike may have come from Astatic themselves when they came out with the 10-D mike which was pr
I have had the same experience as Mike, N4NT, with the Atlas and comparing a 10D to a D104 mike. The D104 seemed to have a better punch with my voice, when chasing DX, or Field Day. Don't know if it
Most of the problems with D104 mike use have to do with impedance matching, and the fact that older radios were set up for high impedance mikes, (like the unamplified D104) and later in the 70's low
I have also used an non-amplified D-104 with Orions and Omnis and received good audio reports too. 73, Dalton W4WUQ Interesting........ the non amplified D-104 that I use on the Collins 32S-1 always
starting with the Icom 730, 735, Alinco DX70t I did not use the D-104 of course but kept my D-104 and the 10-D and glad I did. In the 70's had a lot of different Swan radios and the D-104 and 10-D di