Certainly, find and fix the noise before doing any mods.
73 de W3NU
On 2/14/2014 0208, Adriano wrote:
John
I'm not a technician but i'll suggest to check what's wrong ( "common"
tube stuff such as power supply caps, rotary switches and tube sockets
cleaning etc etc ) before any mod .
I'v
Parts Express has or had another better-than-original speaker that fits
the MS-4 cabinet. Unfortunately I can't find details of the one I bought
a few years ago after it was recommended on one of these lists. The
price was lower than this one, maybe half.
On 4/16/2013 1049, Bob Loving wrote:
Parts Express has or had another better-than-original speaker that fits
the MS-4 cabinet. Unfortunately I can't find details of the one I bought
a few years ago after it was recommended on one of these lists. The
price was lower than this one, maybe half.
On 4/16/2013 1049, Bob Loving wrote:
Is a schematic and parts list available for the 2NB? Any possibility of
duplicating it? How well does it work, in other words would it be worth
the effort?
.
73 de W3NU
On 4/15/2013 0942, Ronald Baker wrote:
I have pictures of the 2C and all the accessories on my Drake Website.
Here is the
I've always questioned Drake's decision to use the 6HF5 in that
transmitter. Sweep tubes made some sense for SSB at the time, but a CW
transmitter meant for beginners? A 6146 would have been so much more
forgiving and reliable.
73 de W3NU
On 3/21/2013 1341, Curt Gidding wrote:
The manual su
Has anyone actually tried to receive 5.3 - 5.4 MHz on a 4 line receiver?
Results?
--
*Charles Ring W3NU*
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o transmit with the 4 line there.
--
*Charles Ring W3NU*
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A hundred watts dissipation with no load, or with a load?
73 de W3NU
On 1/13/2013 2041, Stan Nafziger wrote:
Chris,
I can tell what I do that has worked time and time again. I recently
brought up four Heathkit HP-23 power supplies with original caps.
I use an AC ammeter to monitor the A
I see that a 16.1 MHz crystal would cover 5.0 to 5.5 MHz if it can work
at all. With the 60 meter channels ranging from 5.3305 to 5.4035 MHz, I
wonder if at least receiving might be possible?
73 de W3NU
On 11/25/2012 1128, Edward Gable wrote:
Hello Bob: If you look at any of the 4 line man
friends and associates will get an
email...
Doesn't this nasty trick work only on victims with address books on
webmail? Use real email like Thunderbird or even Outlook and you're
immune (I think).
--
*Charles Ring W3NU*
___
Drakelist ma
t.net, it goes
to everyone on the list.
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Same low hum in headphones as in loudspeaker.
On 9/10/2012 2243, Mark Nace wrote:
Try headpones and see if you can hear. If so, try some deoxit on the
headphone jack switching contact. These contacts get dirty from time
to time.
Let us know how the progress goes.
73
Mark
N5KAE
___
60Hz.. No difference between the AM and either of the two
sideband positions. There is a slight hum in the speaker and
considerable hum on the 60uF section of the triple filter cap, which is
a new replacement one. No audio on the mode switch. Advice?
--
*Charles Ring W3NU
Got it, thanks.
On 8/25/2012 1319, richard radke wrote:
Charles,
I just try'd it and it went right to it...try this from the main
page... it's the 1st item on the list of articles
http://www.wb4hfn.com/DRAKE/DrakeTechTips.htm
Rick
W9WS
On Aug 25, 2012, at 12:11 PM, Charles
On 8/25/2012 1215, richard radke wrote:
Damien,
This should tell you everything you need to know about the AC-4.
http://www.wb4hfn.com/DRAKE/DrakeArticles/AC4_Troubleshooting/Drake_AC3-AC4_Troubleshooting.htm
I get a Forbidden error there.
--
*Charles Ring W3NU
years ago. A medium sized lytic
went off like a bomb. Many tiny fragments to extract from under the
chassis but upon replacing the cap, all was fine. Very startling.
--
*Charles Ring W3NU*
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http
Off to slave labor in China most likely. The businesses that had a
conscience have all lost it or been killed off.
On 8/20/2012 2041, Robert Ladden wrote:
With leaving the manufacturing equipment behind, perhaps they are
off-shoring their manufacturing. Sad if true.
73,
Bob WW3QB
--
ional toward the end of
turning up the variac.
2. The 12BY7 tube was already too hot to leave my fingers on at 65 volts
input.
Normal?
--
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Thanks, I will probably leave it turned on and switch it externally.
73 de W3NU
On 7/24/2012 0914, Bill Frost wrote:
Hello Charles,
I suspect the small spring inside the on/off switch cap got hung up
after sitting idle for awhile. I would not recommend a lubricant
since it is switching pow
old friend of mine that
worked at Drake, told me to do that many years ago.
Charles - KD8JZR
On Jul 23, 2012, at 10:23 PM, Charles Ring wrote:
Today I took my two T-4XB's off the shelf after way too long and
found that both of them have trouble with the power switch ganged
with the
hmmeter later I found that both power switches were open, but
repeatedly cycling them brought them back. Is there an established way
to make them reliable?
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I've had a 2C since I bought it new in 1968. I have considered it a
disappointment compared to the 2B with no passband tuning and a hard to
read dial. At the time I didn't know any better.
73 de W3NU
On 7/18/2012 1350, y...@aol.com wrote:
Would like to find a 2B or 2C receiver. Hopefu
"In with the new" is usually a good thing.
"Out with the old" often flushes very good things like IRC down the
toilet for nothing but fashion.
On 4/22/2012 1854, Charles Ring wrote:
I use IRC every day so it comes na
I use IRC every day so it comes naturally.
73 de W3NU
On 4/22/2012 1824, Richard Knoppow wrote:
- Original Message - From: "Thom LaCosta"
To:
Sent: Sunday, April 22, 2012 2:34 PM
Subject: [Drakelist] New IRC Channel
Just a reminder, there is an IRC channel for drake users at
fre
Is this list functional? Nothing in it for a week here.
73 de W3NU
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Long ago I ran a huge R-388/51J3 on a smaller inverter and it worked fine.
73 de W3NU
On 2/12/2012 0112, Neil M Califano wrote:
I'm still interested in running the Drake R4A of a DC/AC inverter. I found a
Xantrex Pro Watt 600 watt. These are getting pricey, some hundreds of dollars.
Will th
Not sure what you mean by round third plug. The wider
blade is neutral, not ground. The round blade is ground
73 de W3NU.
On 1/19/2012 1525, Kris Merschrod wrote:
On the last AC-4 that I upgraded I bought an extension cord with
molded three pronged male end about 10 feet long and #12 wire. T
I have always used GC's Corona Dope. It rescued sockets for 8008 and
866A mercury vapor rectifiers among other things. I am glad to hear that
the feds haven't banned it yet.
73 de W3NU
On 12/24/2011 1340, Curt Nixon wrote:
I believe GC among others still offer 'Corona Dope" Else, you can ge
First remove the crystals. They occasionally fail and are needed.
On 12/21/2011 2110, Mark Nace wrote:
This is a bad thought, but we have all seen the big crushers for wrecked cars.
I wonder if a little crusher exists for radio hulks like this.
Mark
N5KAE
--
__
This is likely virused spam.
On 11/28/2011 0736, Michael Harden wrote:
I like this offer http://rubenx It could be interesting for you,
too
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I suspect the noise blanker in my R-4C is not working. How can I
definitively test it?
73 de W3NU
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On 9/24/2011 1545, Garey Barrell wrote:
There is considerably overlap in the ranges of the Preselector so for
instance you 'could' set the BAND to 14 MHz and tune 9.5 - 10 MHz by
setting the Preselector to about 5.
That is exactly what I have done for years. Any reason not to?
__
I did this for the same reason with one R-4B. The one problem was when i
heard a loud bang. Thinking something had fallen on the floor, I found
that an electrolytic cap under the chassis had gone off like a bomb. I
removed the mess, replaced the cap, and all was well.
On 9/9/2011 1821, Gar
My experience has been that household vacuums with hose attachments are
not strong enough for this use, Shop vacs that are specifically designed
for a hose are much better for all kinds of dry dirt in electronics.
73 de W3NU
On 5/16/2011 10:00 AM, Kris Merschrod wrote:
Charles - excellent po
Does compressed air have any advantage over suction from a shop vacuum
with a small paint brush? I've never liked to blow the dirt around.
73 de W3NU
On 5/16/2011 8:56 AM, Kris Merschrod wrote:
Jerry, my 2-cents' worth:
I'd use non-chemical and non-mechanical approaches to the soot first,
I had never heard of the TR-M, but upon looking it up, it seems quite
appropriate for 60 meters except for the power level. I don't know how
hard that would be to deal with. Its crystal control looks good for 60m
to me. I would not consider it for any other ham bands.
73 de W3NU
On 4/2/2011
Since i don't have a solder sucker, I first used solder wick with a
Weller 100/140W gun to remove as much as possible, then I used a Dremel
to grind away enough of the tab to break it. I kept a shop vacuum hose
in there to catch the filings. The solder wick step might not have been
needed.
for Drake VHF transverters is here:
http://bama.edebris.com/manuals/drake/trnsvrtr/
Not sure what all else you might need as I am not familiar with the Globe King
500A's other requirements.
73,
Ron WD8SBB
--- On Thu, 2/24/11, Charles Ring wrote:
From: Charles Ring
Subject: [Drakelist]
A possible project I would like to do is to use one of my two T-4XB's as
a vfo/exciter (cw/rtty) for my Globe King 500A. I know I would bypass
the sweep tube final, not sure what other adaptations would be needed.
Has anyone done this kind of thing? I would pair it with my R-4B or my R-4C.
___
My R-4C's meter has white light on it. Is it supposed to have a blue
filter? The original PTO blue filter still looks good. Same with my
R-4B, though its PTO blue filter is very faded.
On 10/19/2010 09:52, ph...@aol.com wrote:
List members:
I bought two sheets of the stuff and I'll *NEV
How about the 2-AQ/2-BQ vs. the 2-CQ (which I have)? Other than
appearance are they compatible?
On 10/5/2010 12:53, Garey Barrell wrote:
Jim -
The biggest difference between the two is a single letter on the front
panel!
They are functionally identical. Actually the "A" is a little mo
When I bought my new 2-C in 1968 (never had a 2-NT), I thought I had
the latest incarnation of the 2 series and it was great. But I had never
seen a 2-A/B and knew nothing about passband tuning. Great
disappointment when I learned what was missing in my 2-C, including the
A/B's much more read
For years I was on only dr...@mailman.qth.net, then i saw a post there
crossposted to this list and joined it. In the last few days I have
added 3 more Drake lists. Minor inconvenience for great information.
73 de W3NU
On 8/14/2010 09:13, john wrote:
Curmudgeonly John here! (Thom is no
be is also a terrific SPRAY cleaner / lubricant for carbon
potentiometers that leaves them feeling and working like new.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line& TR-4/C Service Supplement CDs
Charles Ring wrote:
Looking to clean contacts on my Drake gear. Since there
Looking to clean contacts on my Drake gear. Since there are many
varieties of Deoxit, which one or more is best for this purpose?
73 de W3NU
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physical damage on that cap. Fixed, but I figure I should
replace all the electrolytics after 42 years.
On 4/14/2010 17:22, Charles Ring wrote:
My 2-C, which I bought new in 1968, suddenly developed a very loud
buzz which is there, unchanging, no matter what position any controls
are in
My 2-C, which I bought new in 1968, suddenly developed a very loud buzz
which is there, unchanging, no matter what position any controls are in.
Suspecting the main filter cap, I took the bottom cover off and turned
the receiver upside down, turned it on and the buzz was gone. I could
not provo
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