Re: [AMRadio] DX 60 mods

2010-07-03 Thread Paul Christensen 
Thanks to all for the links and other great information.

Paul, W9AC

- Original Message - 
From: "Brian - KF5CCN" 
To: "Discussion of AM Radio in the Amateur Service" 

Sent: Saturday, July 03, 2010 2:41 AM
Subject: Re: [AMRadio] DX 60 mods


Here are links to the mods. I hope this is acceptable on the list.

http://www.amwindow.org/tech/htm/wc3kmods.htm

http://www.amwindow.org/tech/htm/dx60aud.htm



73
Brian
Email: [email protected]
Web site: KF5CCN.COM
--- On Sat, 7/3/10, rbethman  wrote:

From: rbethman 
Subject: Re: [AMRadio] DX 60 mods
To: "Discussion of AM Radio in the Amateur Service" 

Date: Saturday, July 3, 2010, 12:04 AM

Paul,

Some are, some aren't and were published in Electric Radio.

Then there is one that never made it to publishing due to Bill's sudden
departure from this life.

I sent out Links to the schematic earlier. While NOT well documented,
Most savvy hams can work their way through.

Let me know what you are looking for.

The audio mods are VERY simple and easy to do. They expand the audio
width by replacing a couple of caps.

Bob - N0DGN

On 7/2/2010 9:35 PM, Paul Christensen wrote:
> Are the W3CK mods published on the web? Tnx!
>
> Paul, W9AC
>

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Re: [AMRadio] DX 60 mods

2010-07-02 Thread Brian - KF5CCN 
Here are links to the mods. I hope this is acceptable on the list.

http://www.amwindow.org/tech/htm/wc3kmods.htm

http://www.amwindow.org/tech/htm/dx60aud.htm



73                                             
Brian
Email: [email protected]
Web site: KF5CCN.COM
--- On Sat, 7/3/10, rbethman  wrote:

From: rbethman 
Subject: Re: [AMRadio] DX 60 mods
To: "Discussion of AM Radio in the Amateur Service" 
Date: Saturday, July 3, 2010, 12:04 AM

  Paul,

Some are, some aren't and were published in Electric Radio.

Then there is one that never made it to publishing due to Bill's sudden 
departure from this life.

I sent out Links to the schematic earlier.  While NOT well documented, 
Most savvy hams can work their way through.

Let me know what you are looking for.

The audio mods are VERY simple and easy to do.  They expand the audio 
width by replacing a couple of caps.

Bob - N0DGN

On 7/2/2010 9:35 PM, Paul Christensen wrote:
> Are the W3CK mods published on the web?  Tnx!
>
> Paul, W9AC
>

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Re: [AMRadio] DX 60 mods

2010-07-02 Thread rbethman 
  Paul,

Some are, some aren't and were published in Electric Radio.

Then there is one that never made it to publishing due to Bill's sudden 
departure from this life.

I sent out Links to the schematic earlier.  While NOT well documented, 
Most savvy hams can work their way through.

Let me know what you are looking for.

The audio mods are VERY simple and easy to do.  They expand the audio 
width by replacing a couple of caps.

Bob - N0DGN

On 7/2/2010 9:35 PM, Paul Christensen wrote:
> Are the W3CK mods published on the web?  Tnx!
>
> Paul, W9AC
>

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Re: [AMRadio] DX 60 mods

2010-07-02 Thread johndtate 
http://www.amwindow.org/tech/htm/wc3kmods.htm

Note that the potentiometer in the cathode of the modulator should be 
50K ohms not 50 ohms.  That's a typo.

73, John KX5JT


-Original Message-
From: Paul Christensen 
To: Discussion of AM Radio in the Amateur Service 

Sent: Fri, Jul 2, 2010 8:35 pm
Subject: Re: [AMRadio] DX 60 mods


Are the W3CK mods published on the web?  Tnx!

Paul, W9AC
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread Paul Christensen 
Are the W3CK mods published on the web?  Tnx!

Paul, W9AC

- Original Message - 
From: 
To: 
Sent: Friday, July 02, 2010 6:52 PM
Subject: Re: [AMRadio] DX 60 mods


>I have a DX-60 with the W3CK mods.  It's AMAZING how many UNSOLICITED 
> AWESOME AUDIO reports I receive.  People simply are sometimes in awe 
> that I am on a DX-60 (with the help of either an SB-200 or a Henry 
> 2K4).  These are usually more seasoned AMers too. These mods are not 
> difficult and are very effective.  The stock DX-60 is not bad at all 
> however.  As for worrying about holes... well... there are a LOT of 
> DX-60's still out there.  If you have a perfect example, then maybe you 
> should leave it alone.  My radio is not a museum shelf piece but a 
> working transmitter.
> 
> The over modulation indicator works spot on.  When I see it flash more 
> than just a very dim red on peak audio, I can be assured I am over 
> driving the audio.  A glance at the envelop on the scope confirms 
> flat-lining on the negative peaks.  It is very accurate.
> 
> The carrier level adjustment is something I'm not sure I could live 
> without now.  It has become part of my tuning process.  You see when 
> you adjust it, you have to touch up the audio level and sometimes the 
> loading and tuning to get everything "balanced".  This ability is VERY 
> handy when driving a linear amplifier.  It's sort of difficult to 
> explain but looking at a scope during tune up will clear that up.
> 
> Bill also published a hint about the accessing the audio gain pot 
> without taking the chassis cover off.  I use a wooden "ka-bob" skewer 
> bought in a pack of them from Wally-world (aka Walmart).  They cost 
> less than a couple bucks.  I whittled one end into the shape of a 
> flat-blade screwdriver.  Looking down from the top ventilation holes, 
> you can see the audio gain pot.  The hole directly above it becomes the 
> access with this long wooden "screwdriver".  I just leave it in place 
> with a half inch handle.  Works great.
> 
> Anyone wanna try some 40 meter AM tonight?
> 
> 73, John KX5JT
> __
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread rbethman 
  Jim,

The manual copies I have do not show what series.

There is one neon lamp shown, and it is designated as the "pilot lamp".

They may indeed made a later version, however - I haven't seen it or one.

There have been way too many models of Hallicrafters for me to keep up with.

Bob - N0DGN

On 7/2/2010 7:20 PM, james.liles wrote:
> Bob,
> The Ht-40 used a neon indicator for over modulation announcement --- I
> believe it was the K level schematic.  Also, there were numerous audio
> changes made.  Kindest regards Jim K9AXN
>
> - Original Message -
> From: "rbethman"
> To: "Discussion of AM Radio in the Amateur Service"
> 
> Sent: Friday, July 02, 2010 5:22 PM
> Subject: Re: [AMRadio] DX 60 mods
>
>
>>   Jim - The HT-40 came out before zeners and leds unless I'm really out
>> in left field.
>>
>> Bill Breshears', WC3K, modification used those components to give an
>> over modulation "indicator" to adjust the mic gain with, and allow the
>> operator to run with a clean signal.  Circa 1999 - 2002.
>>
>> Bob - N0DGN
>>
>> On 7/2/2010 5:55 PM, james.liles wrote:
>>> Hi Bob:
>>> I believe that over mod detection change originated in the latest version
>>> of
>>> the Hallicrafters HT-40.  Look at the latest schematic and you will see
>>> some
>>> very effective modulation changes to that radio.
>>> Kindest regards Jim K9AXN
>> __
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-- 
+--+
|   AM Amateur Radio OperatorNØDGN |
+--+
|   http://home.comcast.net/~rbethman/ |
+--+
| Bob Bethman\\\|/// " The absence of a danger |
|   \\ ~ ~ //  signal does *NOT* mean  |
| [email protected]  (/ @ @ /)  that everything is OK " |
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread johndtate 
I have a DX-60 with the W3CK mods.  It's AMAZING how many UNSOLICITED 
AWESOME AUDIO reports I receive.  People simply are sometimes in awe 
that I am on a DX-60 (with the help of either an SB-200 or a Henry 
2K4).  These are usually more seasoned AMers too. These mods are not 
difficult and are very effective.  The stock DX-60 is not bad at all 
however.  As for worrying about holes... well... there are a LOT of 
DX-60's still out there.  If you have a perfect example, then maybe you 
should leave it alone.  My radio is not a museum shelf piece but a 
working transmitter.

The over modulation indicator works spot on.  When I see it flash more 
than just a very dim red on peak audio, I can be assured I am over 
driving the audio.  A glance at the envelop on the scope confirms 
flat-lining on the negative peaks.  It is very accurate.

The carrier level adjustment is something I'm not sure I could live 
without now.  It has become part of my tuning process.  You see when 
you adjust it, you have to touch up the audio level and sometimes the 
loading and tuning to get everything "balanced".  This ability is VERY 
handy when driving a linear amplifier.  It's sort of difficult to 
explain but looking at a scope during tune up will clear that up.

Bill also published a hint about the accessing the audio gain pot 
without taking the chassis cover off.  I use a wooden "ka-bob" skewer 
bought in a pack of them from Wally-world (aka Walmart).  They cost 
less than a couple bucks.  I whittled one end into the shape of a 
flat-blade screwdriver.  Looking down from the top ventilation holes, 
you can see the audio gain pot.  The hole directly above it becomes the 
access with this long wooden "screwdriver".  I just leave it in place 
with a half inch handle.  Works great.

Anyone wanna try some 40 meter AM tonight?

73, John KX5JT
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread rbethman 
  Jim - The HT-40 came out before zeners and leds unless I'm really out 
in left field.

Bill Breshears', WC3K, modification used those components to give an 
over modulation "indicator" to adjust the mic gain with, and allow the 
operator to run with a clean signal.  Circa 1999 - 2002.

Bob - N0DGN

On 7/2/2010 5:55 PM, james.liles wrote:
> Hi Bob:
> I believe that over mod detection change originated in the latest version of
> the Hallicrafters HT-40.  Look at the latest schematic and you will see some
> very effective modulation changes to that radio.
> Kindest regards Jim K9AXN

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Re: [AMRadio] DX 60 mods

2010-07-02 Thread rbethman 
  Ted,

The "discussed" WC3K mods do NOT require ANY holes, AND all are readily 
reversible.

The over-modulation modification was "cleverly" performed by removing 
ONE screw on the front panel, and placing the LED there!

I haven't put a single hole in the DX-60 that I have.

Even the PTT mod requires NO holes in the Old Gal!

Bob - N0DGN

On 7/2/2010 4:19 PM, Ted Gustafson wrote:
> I for one like to just leave things alone. One of the things I try and do
> when I bring a old dog back to life I try and remove all the thing folks did
> over the years to "make it better". Sometimes things just can't be undone or
> I figure it is not worth the time and effort. If you find the right mic and
> adjust the rig as it should it will sound fine. Good clean intelligible
> audio. Then there are folks like the guy in the TV add talking about his
> tube amp, "It will reproduce sounds only a dog can hear". You can get
> carried away. And I am not saying I have NEVER modified a rig. 30 years from
> now some guy will look at one of them and say, "Why would anyone do
> something like that to a nice old vintage rice box like that.  But I did
> draw the line at putting extra holes in it.
>
> I have had better luck with a D104 than any of the other dozen or so mics I
> have tried on the older rigs. It seem to like my voice better. Every one of
> the mics I have has its own "sound".
>
> Good luck and have fun.
>
> Ted WB0TDV
>
> On Fri, Jul 2, 2010 at 12:32 PM, RICHARD GEORGE  wrote:
>
>> I have my DX 60 now working properly in a stock condition. It is a fairly
>> clean radio inside and out, but I'm not concerened about modifying it.  I
>> would like to keep from drilling holes in the front panel but will if
>> necesarry.  I have come across 3 different audio mods on the net. They are
>> the WC3K mod,  KS3K mod, and the K4TLJ mod. In the groups opinon wich is
>> the
>> best one to use?
>>
>> Maybe it is none of the above and I should just go ahead and plate moulate
>> it.  I do have a 35 watt plat modulator that I built some time ago and it
>> has a universal modulation transformer.
>> I plan on using a D104 mike, and have a National 300 for a recevier.
>>
>> Thanks.
>>
>> K6KWQ Dick
>>   Amps by "MORE POWER"
>>
>> __
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>>
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>>
> __
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+--+
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+--+
| Bob Bethman\\\|/// " The absence of a danger |
|   \\ ~ ~ //  signal does *NOT* mean  |
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread rbethman 
  Plate modulation is indeed a "possible" path to take.

If so, then you must decide whether to "outboard" the plate tranny - OR 
begin to hack up the DX-60.

Each follows their "own" path.

Personally I chose to go with NO plate modulation, leaving the radio as 
controlled carrier.

I made some of the WC3K mods.  Then again, I also knew Bill personally 
and made a number of trips to his "Laboratory"/Ham Shack.

I went to a TX-1 for a plate modulated Heath rig.

It was shortly followed by the addition of a BC-610.

Bob - N0DGN

On 7/2/2010 4:06 PM, Ken Sands wrote:
> Use the plate modulator it should work fine with a D-104.  Good luck!
>
> Ken K8TFD 3880 AM 1880 AM

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Re: [AMRadio] DX 60 mods

2010-07-02 Thread Ted Gustafson 
I for one like to just leave things alone. One of the things I try and do
when I bring a old dog back to life I try and remove all the thing folks did
over the years to "make it better". Sometimes things just can't be undone or
I figure it is not worth the time and effort. If you find the right mic and
adjust the rig as it should it will sound fine. Good clean intelligible
audio. Then there are folks like the guy in the TV add talking about his
tube amp, "It will reproduce sounds only a dog can hear". You can get
carried away. And I am not saying I have NEVER modified a rig. 30 years from
now some guy will look at one of them and say, "Why would anyone do
something like that to a nice old vintage rice box like that.  But I did
draw the line at putting extra holes in it.

I have had better luck with a D104 than any of the other dozen or so mics I
have tried on the older rigs. It seem to like my voice better. Every one of
the mics I have has its own "sound".

Good luck and have fun.

Ted WB0TDV

On Fri, Jul 2, 2010 at 12:32 PM, RICHARD GEORGE  wrote:

> I have my DX 60 now working properly in a stock condition. It is a fairly
> clean radio inside and out, but I'm not concerened about modifying it.  I
> would like to keep from drilling holes in the front panel but will if
> necesarry.  I have come across 3 different audio mods on the net. They are
> the WC3K mod,  KS3K mod, and the K4TLJ mod. In the groups opinon wich is
> the
> best one to use?
>
> Maybe it is none of the above and I should just go ahead and plate moulate
> it.  I do have a 35 watt plat modulator that I built some time ago and it
> has a universal modulation transformer.
> I plan on using a D104 mike, and have a National 300 for a recevier.
>
> Thanks.
>
> K6KWQ Dick
>  Amps by "MORE POWER"
>
> __
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Searchable Archives: http://www.mail-archive.com/[email protected]/
> List Rules (must read!): http://w5ami.net/amradiofaq.html
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> the word unsubscribe in the message body.
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread rbethman 
All,

I do indeed have the "over modulation" modification, however I believe 
that is one of those published in ER.

The one that I *DO* have, that most likely is NOT out and published, is 
not very well documented.  However, Bill gave me a complete "FINAL 
Heath" manual, with the schematic containing the PTT mod.  The audio mod 
is there, and I do not remember off-hand if the 160mtr mod is.

The only thing I have in a transmittable form would be the "last" 
schematic.  I certainly haven't scanned the remainder - which included 
the ER articles.

I have NO idea what size files that all can handle.  I have broadband 
connectivity, so I can either send the schematic in its three pieces, OR 
I can load them on my website for download, giving you the direct links 
for the three pieces.  BE ADVISED!  Each is approx 3MB in size!

These are the links to my website for the pieces of the schematic.  The 
size is due to keeping the clarity up to use!







I believe that most are quite able to read them and figure them out!

(I type by the Columbus Method - seek out, land upon - and discover) 
All typos are inadvertent and due to going too fast!

Bob - N0DGN
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread Ken Sands 
Use the plate modulator it should work fine with a D-104.  Good luck!

Ken K8TFD 3880 AM 1880 AM

On 7/2/10, RICHARD GEORGE  wrote:
>
> I have my DX 60 now working properly in a stock condition. It is a fairly
> clean radio inside and out, but I'm not concerened about modifying it.  I
> would like to keep from drilling holes in the front panel but will if
> necesarry.  I have come across 3 different audio mods on the net. They are
> the WC3K mod,  KS3K mod, and the K4TLJ mod. In the groups opinon wich is
> the
> best one to use?
>
> Maybe it is none of the above and I should just go ahead and plate moulate
> it.  I do have a 35 watt plat modulator that I built some time ago and it
> has a universal modulation transformer.
> I plan on using a D104 mike, and have a National 300 for a recevier.
>
> Thanks.
>
> K6KWQ Dick
>   Amps by "MORE POWER"
>
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread rbethman 
  Joe,

I do indeed have the "over modulation" modification, however I believe 
that is one of those published in ER.

The one that I *DO* have, that most likely is NOT out and published, is 
not very well documented.  However, Bill gave me a complete "FINAL 
Heath" manual, with the schematic containing the PTT mod.  The audio mod 
is there, and I do not remember off-hand if the 160mtr mod is.

The only thing I have in a transmittable form would be the "last" 
schematic.  I certainly haven't scanned the remainder - which included 
the ER articles.

I have NO idea what size files that you can handle.  I have broadband 
connectivity, so zI can either send the schematic in its three pieces, 
OR I can load them on my website for download, giving you the direct 
links for the three pieces.  BE ADVISED!  Each is approx 3MB in size!

I believe that you are quite able to read them and figure them out!

(I type by the Columbus Method - seek out, land upon - and discover)  
All typos are inadvertent and due to going too fast!

Bob - N0DGN

On 7/2/2010 3:38 PM, [email protected] wrote:
> I would like to see those "last" mods. I have several of the Electric
> Radio issues, and Bill from Bowie had some great articles in them!
>   Joe W4AAB
>
>
>>If one is "really" inclined to consider Audio mods for the DX-60, I'd
>> give serious to the mods published by the late WC3K.
>>
>> Bill was a satellite engineer, and spent a large part of time in his
>> "laboratory"/ham shack, working on the DX-60.  He made a number of
>> modification, including adding 160Mtrs, PTT, and audio.
>>
>> He used his to drive a 30S1 on occasion, along with a 30L1.  sometimes
>> it was barefoot.
>>
>> There really is no need to attempt to make it a plate modulated Tx.
>> Controlled carrier as it was designed and built, works very well.  The
>> problem is that some operators push the audio too hard.  This is
>> particularly an issue sine the audio gain is a pot INSIDE the radio,
>> only accessed by opening the cabinet.
>>
>> Bill, WC3K, had a simple mod for observing the level of modulation,
>> without drilling holes.
>>
>> Most if not all were published in Electric Radio.
>>
>> I "may" have the very last mods by him, that did NOT get published due
>> to his unfortunate departure.
>>
>> Bob - N0DGN

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Re: [AMRadio] DX 60 mods

2010-07-02 Thread crawfish 
I would like to see those "last" mods. I have several of the Electric
Radio issues, and Bill from Bowie had some great articles in them!
 Joe W4AAB


>   If one is "really" inclined to consider Audio mods for the DX-60, I'd
> give serious to the mods published by the late WC3K.
>
> Bill was a satellite engineer, and spent a large part of time in his
> "laboratory"/ham shack, working on the DX-60.  He made a number of
> modification, including adding 160Mtrs, PTT, and audio.
>
> He used his to drive a 30S1 on occasion, along with a 30L1.  sometimes
> it was barefoot.
>
> There really is no need to attempt to make it a plate modulated Tx.
> Controlled carrier as it was designed and built, works very well.  The
> problem is that some operators push the audio too hard.  This is
> particularly an issue sine the audio gain is a pot INSIDE the radio,
> only accessed by opening the cabinet.
>
> Bill, WC3K, had a simple mod for observing the level of modulation,
> without drilling holes.
>
> Most if not all were published in Electric Radio.
>
> I "may" have the very last mods by him, that did NOT get published due
> to his unfortunate departure.
>
> Bob - N0DGN
>
> On 7/2/2010 1:32 PM, RICHARD GEORGE wrote:
>> I have my DX 60 now working properly in a stock condition. It is a
>> fairly
>> clean radio inside and out, but I'm not concerened about modifying it.
>> I
>> would like to keep from drilling holes in the front panel but will if
>> necesarry.  I have come across 3 different audio mods on the net. They
>> are
>> the WC3K mod,  KS3K mod, and the K4TLJ mod. In the groups opinon wich is
>> the
>> best one to use?
>>
>> Maybe it is none of the above and I should just go ahead and plate
>> moulate
>> it.  I do have a 35 watt plat modulator that I built some time ago and
>> it
>> has a universal modulation transformer.
>> I plan on using a D104 mike, and have a National 300 for a recevier.
>>
>> Thanks.
>>
>> K6KWQ Dick
>>   Amps by "MORE POWER"
>
> __
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
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>
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread cemilton 

I concur with NØDGN's comments about the W3CK mods.  I applied them to my DX-60 
and everything works fb.  I've used it with an SB-200 and received good 
reports.  Bob, if there are other DX-60 mods he did not publish I'd certainly 
like to read them if that's possible/appropriate.   

And Dick, K6KWQ, I'd recommend not modding just to have plate modulation.  As 
Bob stated, controlled carrier modulation (properly adjusted) works just fine.

YMMV

73
Chuck
W4MIL

-Original Message-
From: rbethman 
To: Discussion of AM Radio in the Amateur Service 
Sent: Fri, Jul 2, 2010 2:13 pm
Subject: Re: [AMRadio] DX 60 mods


  If one is "really" inclined to consider Audio mods for the DX-60, I'd 
ive serious to the mods published by the late WC3K.
Bill was a satellite engineer, and spent a large part of time in his 
laboratory"/ham shack, working on the DX-60.  He made a number of 
odification, including adding 160Mtrs, PTT, and audio.
He used his to drive a 30S1 on occasion, along with a 30L1.  sometimes 
t was barefoot.
There really is no need to attempt to make it a plate modulated Tx.  
ontrolled carrier as it was designed and built, works very well.  The 
roblem is that some operators push the audio too hard.  This is 
articularly an issue sine the audio gain is a pot INSIDE the radio, 
nly accessed by opening the cabinet.
Bill, WC3K, had a simple mod for observing the level of modulation, 
ithout drilling holes.
Most if not all were published in Electric Radio.
I "may" have the very last mods by him, that did NOT get published due 
o his unfortunate departure.
Bob - N0DGN
On 7/2/2010 1:32 PM, RICHARD GEORGE wrote:
 I have my DX 60 now working properly in a stock condition. It is a fairly
 clean radio inside and out, but I'm not concerened about modifying it.  I
 would like to keep from drilling holes in the front panel but will if
 necesarry.  I have come across 3 different audio mods on the net. They are
 the WC3K mod,  KS3K mod, and the K4TLJ mod. In the groups opinon wich is the
 best one to use?

 Maybe it is none of the above and I should just go ahead and plate moulate
 it.  I do have a 35 watt plat modulator that I built some time ago and it
 has a universal modulation transformer.
 I plan on using a D104 mike, and have a National 300 for a recevier.

 Thanks.

 K6KWQ Dick
   Amps by "MORE POWER"
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Re: [AMRadio] DX 60 mods

2010-07-02 Thread rbethman 
  If one is "really" inclined to consider Audio mods for the DX-60, I'd 
give serious to the mods published by the late WC3K.

Bill was a satellite engineer, and spent a large part of time in his 
"laboratory"/ham shack, working on the DX-60.  He made a number of 
modification, including adding 160Mtrs, PTT, and audio.

He used his to drive a 30S1 on occasion, along with a 30L1.  sometimes 
it was barefoot.

There really is no need to attempt to make it a plate modulated Tx.  
Controlled carrier as it was designed and built, works very well.  The 
problem is that some operators push the audio too hard.  This is 
particularly an issue sine the audio gain is a pot INSIDE the radio, 
only accessed by opening the cabinet.

Bill, WC3K, had a simple mod for observing the level of modulation, 
without drilling holes.

Most if not all were published in Electric Radio.

I "may" have the very last mods by him, that did NOT get published due 
to his unfortunate departure.

Bob - N0DGN

On 7/2/2010 1:32 PM, RICHARD GEORGE wrote:
> I have my DX 60 now working properly in a stock condition. It is a fairly
> clean radio inside and out, but I'm not concerened about modifying it.  I
> would like to keep from drilling holes in the front panel but will if
> necesarry.  I have come across 3 different audio mods on the net. They are
> the WC3K mod,  KS3K mod, and the K4TLJ mod. In the groups opinon wich is the
> best one to use?
>
> Maybe it is none of the above and I should just go ahead and plate moulate
> it.  I do have a 35 watt plat modulator that I built some time ago and it
> has a universal modulation transformer.
> I plan on using a D104 mike, and have a National 300 for a recevier.
>
> Thanks.
>
> K6KWQ Dick
>   Amps by "MORE POWER"

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Re: [AMRadio] DX 60 mods

2010-07-02 Thread Hal Dale 
With a properly adjusted DX60, there is nothing wrong with the audio as it is. 
I have heard many DX60's ran thru linear amps that sound excellent. 
The basic speech amp in the DX60 is not much different than most. I have two 
DX60's, One I mod for screen mod and the other is stock. I am told they both 
sound excellent. 
The screen mod unit only runs at about 15W. Of course, the control carrier will 
put out a bit more power on peaks. 
As I said, adjusted properly, there is nothing wrong with controlled carrier. 
Just my opinionHal, WB4AEG
 








CW.When all else fails !!












From: RICHARD GEORGE 
To: amlist 
Sent: Fri, July 2, 2010 1:32:49 PM
Subject: [AMRadio] DX 60 mods

I have my DX 60 now working properly in a stock condition. It is a fairly 
clean radio inside and out, but I'm not concerened about modifying it.  I 
would like to keep from drilling holes in the front panel but will if 
necesarry.  I have come across 3 different audio mods on the net. They are 
the WC3K mod,  KS3K mod, and the K4TLJ mod. In the groups opinon wich is the 
best one to use?

Maybe it is none of the above and I should just go ahead and plate moulate 
it.  I do have a 35 watt plat modulator that I built some time ago and it 
has a universal modulation transformer.
I plan on using a D104 mike, and have a National 300 for a recevier.

Thanks.

K6KWQ Dick
Amps by "MORE POWER" 

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