Re: [drakelist] Drake Twins On CW

2008-07-07 Thread Garey Barrell

Garey Barrell [EMAIL PROTECTED] made an utterance to the drakelist gang
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Eddy -

Yes, this was only in the T-4X.  Later models added a switch contact to
short the key line in SSB so the key could be left plugged in.

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B, C-Line  TR-4/C Service Supplement CDs
www.k4oah.com



EP Swynar wrote:

Hi Garey...

REALLY...?!

I don't recall seeing that in the manual, but I'll certainly re-check --- 
that, AND try the rig on phone WITHOUT the key being plugged in...


But it STILL sounds kinda strange to me! Hi Hi.

~73~ Eddy VE3CUI - VE3XZ


*

- Original Message - 
From: Garey Barrell [EMAIL PROTECTED]

To: Drakelist drakelist@zerobeat.net; [EMAIL PROTECTED]
Sent: Friday, July 04, 2008 6:34 PM
Subject: Re: [drakelist] Drake Twins On CW


  

If you have a KEY plugged in, it must be closed (or unplugged) for SSB.

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B, C-Line  TR-4/C Service Supplement CDs
www.k4oah.com



Garey Barrell wrote:


Garey Barrell [EMAIL PROTECTED] made an utterance to the
drakelist gang
--
Does the transmitter work in TUNE mode?

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B, C-Line  TR-4/C Service Supplement CDs
www.k4oah.com



EP Swynar wrote:
  

EP Swynar [EMAIL PROTECTED] made an utterance to the drakelist


gang
  

--
Hi Gang,

Well, I guess I'm down to having to check the resistances  voltages
of the
different parts of the tubes in audio chain of the T-4X transmitter...

ZERO AUDIO from the rig, despite  my bypassing of all of the related
circuitry  going directly to the mic elements with alligator-clipped
wires...!

Any suggestions from you more seasoned veterans...?

~73~ Eddy VE3CUI - VE3XZ




  



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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Dan Ringer
Dan Ringer [EMAIL PROTECTED] made an utterance to the drakelist gang
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On 4 Jul 2008 at 7:35, EP Swynar wrote:

 Hi Dan,
 
 Sounds like ...sound advice (pun intended!) to me...
 
 I shall do exactly that, probably later to-day.
 
 Thanks for the note,  my vy
 
 ~73!~ Eddy VE3CUI - VE3XZ
 
 PS: Were these amplified D-104 mics some sorta hang-over from the old
 ...louder-is-better CB days...?!

Let us know how it works out, Eddy.

Amplified microphones became popular in the late 70's and early 80's, 
concurrent with, and perhaps because of the CB Craze:

The amateur radio version of all this was that some of the ricebox rigs, 
needed higher audio input to operate .  They started using preamplifiers at 
the microphone input to get it.  Some did it by putting the preamp in the 
microphone (Icom) others put it in the rig.

The CB version was that power mics were good and the louder you were 
the, uh, louder you were.  This was not a completely untrue thought. Good 
modulation is, . . . good, but easily abused. 

In any event, the Drake transmitters (and probably transceivers, but I've 
never use one) responded well to some of the then current microphones, 
including the unamplified Astatic D-104's.  That's what I use on my T4XB, 
with good results.  I use a Heil 781 microphone through a Behringer 802 
preamp/mixer.eq on my Icom 740 to get an equivalent result.  Clearly Drake 
had a better idea!

Dan, K8WV
---
Darrell (Dan) Ringer
Attorney at Law
ABA Solo Practitioner of the Year
Past-President, WV State Bar
WV Lawyer of the Year
Fellow, WV Bar Foundation
823 Fairmont Road
Morgantown, WV 26501
304-292-1999   FAX 304-292-3372
=
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on WV Public Television, Thursdays at 8:30 p.m.
=



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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Gary Poland
I believe the amplifier in the D-104 was to allow the mic to be used with 
radios with low impedance mic inputs, one mic fits all. The amp had a lot of 
gain. I think the CB'ers just cashed in on that fact which made the D-104 
popular with them ... disable the ALC, crank the mic gain up, grab a beer and 
cigarette, and yelling from 10 feet across the room splatter up and down 5 
channels ... loud and proud.
I have several D-104's and the ones with amps have the amp bypassed, they are 
not required.

73, Gary

Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Jim Shorney
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
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On Fri, 04 Jul 2008 10:44:50 -0400, Dan Ringer wrote:

Amplified microphones became popular in the late 70's and early 80's, 
concurrent with, and perhaps because of the CB Craze:


In the case of the D104, the amplifier is an imedance matching buffer with some 
gain. This was done to 
allow the microphone to be used with the low impedance input of solid state CB 
rigs. 


The amateur radio version of all this was that some of the ricebox rigs, 
needed higher audio input to operate .  They started using preamplifiers at 
the microphone input to get it.  Some did it by putting the preamp in the 
microphone (Icom) others put it in the rig.

This was also a trend in the commercial radio market. I'm not sure why they 
went that way, but perhaps 
because it made dynamic mics interchangable with electret. There's also the 
possibility that they did it 
because it's easier to keep induced noise out of the mic cord when the mic 
circuit is run at a higher lever. 
I've got some old GE Phoenix radios that have a dual input, pre-amped and 
non-preamped.


The CB version was that power mics were good and the louder you were 
the, uh, louder you were.  This was not a completely untrue thought. Good 
modulation is, . . . good, but easily abused. 


CB ops tend to like to keep the mic sitting on the table and just reach over 
and push the button. Of course, 
this creates a signal-to-noise ratio issue. You could always tell what they 
were watching on TV, how many 
dogs they had, whether or not the wife and kids were home, etc. You were a big 
dog if people could hear 
your click-click rotor box turning while your were talking. The effect is even 
worse with compressor mics like 
some of the Turner models. And then, there's the concept of swing - turn the 
mic up and get more 
swing - the more the better, right? Splatter? What's that?


Clearly Drake 
had a better idea!


Was there ever any doubt? :)

73

-Jim
NU0C



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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Jim Shorney
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
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On Fri, 4 Jul 2008 11:02:59 -0400, Gary Poland wrote:

I believe the amplifier in the D-104 was to allow the mic to be used with 
radios with low impedance mic 
inputs, one mic fits all. The amp had a lot of gain. I think the CB'ers just 
cashed in on that fact which made 
the D-104 popular with them ... disable the ALC, crank the mic gain up, grab a 
beer and cigarette, and 
yelling from 10 feet across the room splatter up and down 5 channels ... loud 
and proud.
I have several D-104's and the ones with amps have the amp bypassed, they are 
not required.


Gee, Gary, I think I just said that... :)

73

-Jim




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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Mike Williams
The D 104 I use currently works well with the 4 C line and the TR-7.  Like the 
other guys, I rewired the mic and bypassed the preamp in the base of the stand. 
 The reports are usually better than the Shure 444.


73 de W4DL   Mike
ex AK7P * WA9SWF * WN9SWF

Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Garey Barrell

Garey Barrell [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Eddy -

The mic amplifier came about primarily because of the solid-state 
transmitter.  The D-104 and other similar mic's were designed to drive 
very high input impedance (i.e., tube) mic amplifiers, typically 500 k 
ohms.  These mics generated several volts of audio at these impedance 
levels with no additional amplification.  Solid state amps, on the other 
hand, had input impedances of 500 ohms or so, and these mics were unable 
to drive them.  So some mic  manufacturers installed amplifiers, not so 
much for gain, but to allow them to drive low impedance loads.  A 
secondary effect was that the bare mic's frequency response was highly 
dependent upon the actual load impedance, and of course the internal 
amplifier was able to reflect an ideal load for the mic element.


So the amplifier was a good solution all around.  The gain control 
allowed the amplified mic to drive BOTH the low impedance radios at the 
relatively low level needed (typically hundreds of millivolts) AND the 
high impedance radios at the high level needed (typically a volt or 
more) simply by adjusting the gain.  The constant input impedance of the 
internal preamp allowed the mic element itself to have a constant 
frequency response regardless of the radio it was connected to.


You can either use the amplifier or not, as long as you adjust the 
preamp control correctly.  Bypassing the preamp completely is one 
option, and the input impedance of the T-4X results in a good frequency 
response from the D-104.  Depending upon your voice characteristics, you 
might want to add a resistor in series with the mic input to tailor the 
response somewhat.  If you leave the preamp in place, you can set the 
mic gain appropriately by setting the GAIN control on the T-4X to about 
10-11 o'clock, and then adjusting the preamp control so that normal 
speech kicks the Plate meter to about 100 - 150 mA on peaks.


73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B, C-Line  TR-4/C Service Supplement CDs
www.k4oah.com




Hi Dan,

Sounds like ...sound advice (pun intended!) to me...

I shall do exactly that, probably later to-day.

Thanks for the note,  my vy

~73!~ Eddy VE3CUI - VE3XZ

PS: Were these amplified D-104 mics some sorta hang-over from the old
...louder-is-better CB days...?!



  


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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Gary Poland
Guess we think alike huh? HI HI

Re: [drakelist] Drake Twins On CW

2008-07-04 Thread RLucch2098
Hi All;
From what I have seen  know of, the Astatic G push-to-talk stand was 
un-amplified.
The T-UG8 PTT Stand was amplified but for hi-Z inputs.
The T-UG9 PTT stand was amplified and universal, Hi-Z es Lo-Z.
All stands could be mounted with a D-104 Xtal hi-z crystal mike head or a 10D 
dynamic or 10C Crystal or Ceramic, I forget which now.
All good mikes, I used just a D-104 head on a Astatic stand(not PTT either) 
on my AM G-28 Gonset, works great!
73...
Rich WA2RQY

Thanks es 73Rich WA2RQY/4 (1961)
WA2RQY's confusion Radio Web-Page
Http://members.aol.com/rlucch2098/index.html
Ham Radio Manuals:
http://myradioroom.com/hamradiomanuals.html
Ol' Stuff Web-Page
http://myradioroom.com
[EMAIL PROTECTED]
Keep those heaters on




Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Steve Berg

Steve Berg [EMAIL PROTECTED] made an utterance to the drakelist gang
--


Most of the Motorola radios I worked on in the factory and in field 
service had amplified mics, including the the Mocat CB radios.  I tend 
to use the non-amplified D104 mics with my older vacuum state rigs, and 
the amplified ones with the newer Ten Tecs.  Either way, they work 
great.  Of course, the amplifiers need to be wired correctly.  I was the 
tech there at Schaumburg who tested the first 144 amplified CB mics sent 
up from the Puerto Rico plant.  Not one of them worked.  I guess you 
could really call that gross ineptitude!


I also have good results with the Shure 444 mics, and those have a 
switch on the bottom to set the output impedance.  Less trouble than the 
Astatic preamp.


Steve WA9JML

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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Jim Shorney
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
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On Fri, 04 Jul 2008 11:06:54 -0500, Steve Berg wrote:

I also have good results with the Shure 444 mics, and those have a 
switch on the bottom to set the output impedance.  Less trouble than the 
Astatic preamp


The 444D has the switch. The 444 (no D) is - usually - high impedance only. 
I've got both variants. The 
black 444D is a nice match to the TR7, but I've been told the D104 sounds 
better. I'm running it on the Hi-Z 
input, which already has a 470K resistor, so combined with the added 470K in 
the mic the D104 element 
is loaded by close to a meg. 

73

-Jim
NU0C



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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Jim Shorney
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
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On Fri, 4 Jul 2008 11:47:23 -0400, Gary Poland wrote:

Guess we think alike huh? HI HI


Great minds.





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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Garey Barrell

Garey Barrell [EMAIL PROTECTED] made an utterance to the drakelist gang
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Seems to be a consensus   :-)

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B, C-Line  TR-4/C Service Supplement CDs
www.k4oah.com



Gary Poland wrote:

Guess we think alike huh? HI HI
  


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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Jim Shorney
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
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On Fri, 4 Jul 2008 11:48:09 EDT, [EMAIL PROTECTED] wrote:

The T-UG8 PTT Stand was amplified but for hi-Z inputs.
The T-UG9 PTT stand was amplified and universal, Hi-Z es Lo-Z.

From what I've read, the amplifier was essentially the same. The UG9 stand 
added extra switch contacts and 
wires in the mic cable for those fancy CB rigs with bizarre switching.

73

-Jim
NU0C




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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread LeeCraner
Has anyone else noticed the irony of a thread titled Drake Twins on CW 
turning to a discussion of microphones?

73 es a happy 4th to all!
Lee WB6SSW


**
Gas prices getting you down? Search AOL Autos for 
fuel-efficient used cars.
  
(http://autos.aol.com/used?ncid=aolaut000507)


Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Steve Berg

Steve Berg [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Hey, those keys and bugs need to cool off now and then.

Steve WA9JML

[EMAIL PROTECTED] wrote:
Has anyone else noticed the irony of a thread titled Drake Twins on CW 
turning to a discussion of microphones?


73 es a happy 4th to all!
Lee WB6SSW


**
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(http://autos.aol.com/used?ncid=aolaut000507)

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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread EP Swynar
EP Swynar [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Hi Gang,

Well, I guess I'm down to having to check the resistances  voltages of the
different parts of the tubes in audio chain of the T-4X transmitter...

ZERO AUDIO from the rig, despite  my bypassing of all of the related
circuitry  going directly to the mic elements with alligator-clipped
wires...!

Any suggestions from you more seasoned veterans...?

~73~ Eddy VE3CUI - VE3XZ


*


- Original Message - 
From: Jim Shorney [EMAIL PROTECTED]
To: drakelist@zerobeat.net
Sent: Thursday, July 03, 2008 8:54 PM
Subject: Re: [drakelist] Drake Twins On CW


 Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist
gang
 --
 On Thu, 03 Jul 2008 17:45:00 -0400, Dan Ringer wrote:

 Eddy, I suggest simply bypassing the amp on the D104.  The T4Xany
 doesn't need it.  I use an unamplified D104 and get great audio reports
on
 my T4XB.

 I agree completely. Take that horrid amp out and nail it to the wall, put
a 470K resistor in series with the audio
 lead, and that D104 will sound wonderful.

 73

 -Jim
 NU0C




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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread Garey Barrell

Garey Barrell [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Does the transmitter work in TUNE mode?

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B, C-Line  TR-4/C Service Supplement CDs
www.k4oah.com



EP Swynar wrote:

EP Swynar [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Hi Gang,

Well, I guess I'm down to having to check the resistances  voltages of the
different parts of the tubes in audio chain of the T-4X transmitter...

ZERO AUDIO from the rig, despite  my bypassing of all of the related
circuitry  going directly to the mic elements with alligator-clipped
wires...!

Any suggestions from you more seasoned veterans...?

~73~ Eddy VE3CUI - VE3XZ

  



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Re: [drakelist] Drake Twins On CW

2008-07-04 Thread john

john [EMAIL PROTECTED] made an utterance to the drakelist gang
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Hi Eddy,

Does the microphone work (check output with a scope)

John K5MO


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[drakelist] Drake Twins On CW

2008-07-03 Thread EP Swynar
Good Day All,

I had a real treat here the past few days, setting up  operating my T-4X 
transmitter  R-4 receiver beneath the gazebo in the backyard, working Field 
Day  Canada Day out in the fresh air on CW...

What a wonderful pair of rigs for CW --- they really complement each other, and 
in more ways than one! I'd never had the T-4X even on before, until this past 
weekend (I acquired both rigs last December), and was quite impressed with it...

I had no luck getting the rig to operate on 'phone, though...I guess I'll have 
to play around with the wires coming out the base of the amplified D-104 some 
more, before I try to get into the rig itself (I just HATE those amplified 
mics!). The PTT seems to work A-OK --- there's just no audio!

Anyway, so far, as a CW station, all I have to say (again!) is, WHERE HAVE 
THESE RIGS BEEN ALL OF MY LIFE...?! Hi Hi. They're wonderful...

~73~ Eddy VE3CUI - VE3XZ



Re: [drakelist] Drake Twins On CW

2008-07-03 Thread Dan Ringer
Dan Ringer [EMAIL PROTECTED] made an utterance to the drakelist gang
--
On 3 Jul 2008 at 15:24, EP Swynar wrote:

 What a wonderful pair of rigs for CW --- they really complement each other, 
 and in more ways 
 than one! I'd never had the T-4X even on before,until this past weekend (I 
 acquired both rigs last 
 December), and was quite impressed with it... 
 
 I had no luck getting the rig to operate on 'phone, though...I guess I'll 
 have to play around with the 
 wires coming out the base of the amplified D-104 some more, before I try to 
 get into the rig itself (I 
 just HATE those amplified mics!). The PTT seems to work A-OK --- there's just 
 no audio! 

Eddy, I suggest simply bypassing the amp on the D104.  The T4Xany 
doesn't need it.  I use an unamplified D104 and get great audio reports on 
my T4XB.

Dan, K8WV

---
Darrell (Dan) Ringer
Attorney at Law
ABA Solo Practitioner of the Year
Past-President, WV State Bar
WV Lawyer of the Year
Fellow, WV Bar Foundation
823 Fairmont Road
Morgantown, WV 26501
304-292-1999   FAX 304-292-3372
=
Watch THE LAW WORKS (http://www.thelawworks.org)
on WV Public Television, Thursdays at 8:30 p.m.
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Re: [drakelist] Drake Twins On CW

2008-07-03 Thread Jim Shorney
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
--
On Thu, 03 Jul 2008 17:45:00 -0400, Dan Ringer wrote:

Eddy, I suggest simply bypassing the amp on the D104.  The T4Xany 
doesn't need it.  I use an unamplified D104 and get great audio reports on 
my T4XB.

I agree completely. Take that horrid amp out and nail it to the wall, put a 
470K resistor in series with the audio 
lead, and that D104 will sound wonderful.

73

-Jim
NU0C




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Re: [drakelist] Drake Twins On CW

2008-07-03 Thread RLucch2098
In a message dated 7/3/2008 7:33:43 PM Eastern Daylight Time, 
[EMAIL PROTECTED] writes:


 ron [EMAIL PROTECTED] made an utterance to the drakelist gang
 --
 Dan Ringer wrote:
   
  Eddy, I suggest simply bypassing the amp on the D104.  The T4Xany 
  doesn't need it.  I use an unamplified D104 and get great audio reports on 
 
  my T4XB.
 

 
 Besides, them amplified D104's were made with CB'ers in mind at the time.
 Ham radio rigs, they are not needed.
 
 Ron
 wb1hga

Well Maybe but I bought the Preamp from Astatic that went into the base of a 
G stand(D-104 is head alone), had to drill a few holes, one for access to 
the gain pot  another on top for on/off switch, best $7.00 I ever spent.
My New twins(1977) seemed to need more audio for some reason.
Now I could talk a bit lower to accomplish the same.
Too high a setting causes more background noise, not good, hi!
If you got an amplified base, give it a try!
GL es 73..
Rich WA2RQY/4


Re: [drakelist] Drake Twins On CW

2008-07-03 Thread Jim Shorney
Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang
--
On Thu, 3 Jul 2008 21:13:13 EDT, [EMAIL PROTECTED] wrote:

Well Maybe but I bought the Preamp from Astatic

Heck, I would have given you one if you really wanted it... :)

My New twins(1977) seemed to need more audio for some reason.

I haven't tried a D104 on the twins yet, but every other rig I've tried one on 
has not needed the amp. 
Currently I'm using a Golden Eagle version on the TR7, sans preamp. plus 470K 
resistor. Plenty of audio. 
I'll probably move the Golden Eagle over to the HyGain 3750, as it's a better 
style match. Keeping my eyes 
open for a Silver Eagle for the TR7.

Still using Shure 444s on the C-Line and TR6. Although I've got an EV RE-20 I'm 
gonna hook up to 
something... Since I've got plenty of standard T-UG8/D104 around here, I'll 
probably try one on the twins 
someday. Without the amp, of couse.

73

-Jim
NU0C



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