Carey,
This must sound good. I've used the C-line twins on AM and have received
good reports as is. But the idea of a dedicated AM set up sounds like a
nice idea and TX-4s are not hard to find nor expensive. So why not?
Once home I will listen for you and search out K1JJ to hear the
I had an early RV-4 - power from the TR-4 but the early one had an OA2
tube in it for some reason so it was doing some rectafication.
It is a great station addition b/c it holds the AC-4 power supply and also
provides a speaker. Plus, adds another glowing dial!
73,
Kris KM2KM
Merschrod
Mark, that is a nice description of the AC-4 rebuild. Thank you for
sharing it with us.
I have done a few of them but using Mike's (Solar) approach. I confess that
I did not strip it all down and scrube the chassis! Very good idea to use
new bushing etc.
I have gambled on the old
Hey guys/gals, how about changing the subject line to fit the topic?
Kris KM2KM
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To Mod or not to Mod has been an interesting theme to close out the old
year, that is for sure.
Happy Old Year to all,
and may the new year bring excellent propagation, low noise, and resonance on
all antennas and remember, to tune is to exist.
Kris
Does anyone have the scoop on this 160 mod on eBay? Yes, inside there are 4
crystals in the sockets and the decale on the front looks like a nice addition,
but what could be the mod ?
the TX-4 it
tune?
Many thanks,
Kris KM2KM
- Original Message -
From: Garey Barrell k4...@mindspring.com
To: Kris Merschrod k...@merschrod.net
Cc: drakelist@zerobeat.net
Sent: Tuesday, December 20, 2011 11:21 AM
Subject: Re: [Drakelist] TX-4C 160 Mod ?
Kris -
The 160M 'Mod
Sri to pick up this thread so late, IMHO Collector Condition:
1) there is a difference between original and restored. I'd prefer not
restored.
2) practically un scuffed, un chipped paint on the cabinet - no additional
holes please.
3) absolutely unblemished - not even finger tip burnishing of
Hello Ron and Don and everyone,
I used my TR-4Cw for QRP work on both CW and SSB. My approach was to tune
it up on a dumy load, then through a w-4 watt meter (not really designed for
QRP but it was what I had overseas) tune again to match the rig to the
antenna (nothing like a Pi-Network on
What a great treasure, Mike - I am not sure about the lower than last time at
Drake power - but I would rebuild the AC-4 before it has issues. The place to
start for references and ideas is http://www.wb4hfn.com/DRAKE/DrakePageHome.htm
The rebuild kit site is
Must clear the bench(es.
Who will give me $85 (I will pay shipping in CONUS)?
DRAKE RV-4
The remote VFO is a nice accessory for Drake Transceivers. It provides a
speaker and a place for the AC-3 or AC-4 power supply, plus it allows
split operation for the TR-3 or TR-4 transceivers.
This is an
I forgot to mention - I have photos of this gem including its defects.
Just send me a note off reflector and I will send them.
Kris KM2KM
Must clear the bench(es.
Who will give me $85 (I will pay shipping in CONUS)?
DRAKE RV-4
The remote VFO is a nice accessory for Drake Transceivers. It
Steve mentioned that the p[revious owner used his 4-line as a QRP rig. I
thought that I was the only one who had done that! It seems like a lot of
radio idling, but it was the only one that I had when the QRP-bug bit!
All I did was throatle back on the gain while keying until the watt meter
Hello all,
Were those trimmer caps the work of the team of ladies assembling and
testing the PTOs? Could it be that they started with the main resonating
cap and then added those trimmers as needed to get the PTO dead on?
Kris KM2KM
- Original Message -
From: Garey Barrell
Steve,
I also have an R4 with brillant chassis (SN 0170) - It could be that those
early ones had better plating, but, in any case, do not junk or part out
that gem. Be patient and fin a cabinet. Even if it is a later cabinet, the
beauty is still under there.
Kris KM2KM
Merschrod
San
Mike,
The MN-2000 is built like a tank, but adding for 160 is a real modification.
The WARC bnads, however are possible just by using the nearest band setting and
tuning - depends on the mismatch.
If only 300 watts or so is going into the tuner then go for the MN-4C to pick
up the 160 band -
Day dreaming again! I am working on the restoration of a nice TR-4C. One
of the great improvements on the TR-4CW was to offer the RIT. Looking at
the RIT board in the manuls makes it look like a snap to make one and add it
to the TR-4C and replace the NB off/on swicth with some sort of a 10
attention.
This is the kind of activity I should be doing in the Winter. Too many
weeds to pull outside :)
73,
Kris KM2KM
Kris Merschrod
607 -257-1734
Ithaca, NY
- Original Message -
From: Ron wd8...@yahoo.com
To: k4...@mindspring.com; drakelist Drakelist@zerobeat.net; Kris
I bought a couple of relays for the TR-4 or TX-4 that looked like the right
thing, but I am not sure. They say on them:
AMF R-10-ET-P4-V700 24V DC.
Kris KM2KM
Merschrod
607 -257-1734
Ithaca, NY
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I am away from the shack, but my 220 set up is with the three wires as
per the DRAKE Manual. I went overboard on the outlet and plug - twist
type rated way beyond the needed amperage, but it ws in stock! The
breaker is rated as per the manual and only serves the L-4B.
Kris KM2KM
Just
I, too, have had one in use for years - the wireless type. The external
unit was sealed with the silicon caulking used ariund tubs. Never a
problem. They are really nice gems. I'd like a two position one if anyone
has one.
Kris KM2KM
Merschrod
123 Warren Road
Ithaca, NY 14850
Jerry, my 2-cents' worth:
I'd use non-chemical and non-mechanical approaches to the soot first, that is,
use compressed air on it out in the open air.
Then a soft, small paint brush, (The main thing is to get rid of as much as
possible before making mud of it!)
Then Q-tips with contact
To: Kris Merschrod
Cc: drakelist@zerobeat.net
Sent: Monday, May 16, 2011 9:30 AM
Subject: Re: [Drakelist] Smoke damaged TR-4CW
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
Just some thoughts - no questions :)
Recently I bought an AC-4 power supply (serial # above 55,000) that had
parts missing. Basically, and I knew it, the $43 (included shipping) was
buying a cabinet, the three pronged power cord, the main cord with cinch
connector, the fuse holder, the L-C's
Don sums it up dramatically,
ALL the caps are suspect and time bombs waiting to destroy unobtainium
parts in the rigs.
A rebuild is an insurance policy and the worth of an AC-4 has to be
calculated with that in mind.
Ron (WB4HFN) - does your data base of sales history on AC-4s have the w
Basically the FCC (I do not have the quote handy) said that the limit would
be the equivalent of 50 watts applied to a dipole.
So, in practice, some have tweaked their power into the transmission line
taking into consideration the loss of the transmission going to the dipole.
Some have also
Paul, that is a great description and what a beutiful chassis!
\Congratulations,
Kris KM2KM
I just completed my R-4B modifications. For those not previously tuned
in, I was interested in adding the Sherwood R-4C power supply and audio
amp mod to the R-4B. The stock high-voltage dividers,
All I had were a couple of 80 meter crystals - try to work all states on
one frequency - it is a chore that I have yet to finish and now they shifted
the 80 meter band! Then I found a VF-1 and was able to do a lot more.
But, as pointed out, the filters were not that narrow and with today's
Hello, the conversion of the T-4s at Drake and also by Drake for customers
raises the question of Just how many T-4 reciters of both the w and w/o
speakers are there out there?
I enjoy the T-4 with the R-4 - nice and simple. Bill's 0018 has to be one
of the earliest alive. that has been
Back in the early eighties there was an interesting verticle in QST that was
a multiple band homebrew vertical that consisted of small-dimension 1/4 wave
elements that were bolted to sections of 4or 6 PVC rings. One vertical
for each band. That provided a no-tuner-needed vertical that, of
Tom ,
Fear not, you are not alone in the World! I use the R-4 (Serial # 921) with a
T4-Reciter (Serial #173). Basically this combination is a Tranceiver b/c the
Reciter does not have a VFO and is controlled by the R-4. I receive excellent
reports on the quality of the transmission and like
Thank you Curt for the nice photo illustrations and neat aproach.
Kris KM2KM
Merschrod
123 Warren Road
Ithaca, NY 14850
www.merschrod.net
- Original Message -
From: Curt Nixon cptc...@flash.net
To: Hunter Ellington wb9...@yahoo.com
Cc: Drakelist@zerobeat.net
Sent: Wednesday, September
Warren Road
Ithaca, NY 14850
www.merschrod.net
- Original Message -
From: Ronald Erickson
To: Kris Merschrod
Cc: Drakelist
Sent: Saturday, August 14, 2010 12:19 AM
Subject: Re: [Drakelist] Low power tuning
It is the tuning and drive that heats up tubes. When you turn down
are cheap! And a LOT more efficient at low
power than a TR-4!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line TR-4/C Service Supplement CDs
www.k4oah.com
Kris Merschrod wrote:
Good morning, Ron,
Good points all around - tune up of the air, excellent watt meter, etc.
I just never gave
Good evening All,
Well, for years I was a QRP nut and all I had was my TR-4CW. I tuned it up
as per the manula and then, with key down backed off the xmtr gain to QRP
levels and operated that way. I did that with CW and also SSB. How accurate
was it? I am not sure. The finals seem to hold
The RV-4 that I posted earlier is taken, otherwise.
I think that the best approach is to hunt for an RV-4 or RV-4C to match the
TR-4 that you have and simply sell the RV-3 to someone who would like a match.
I'm a conservationist so I do not like chop and channeling - The repro
front
Robert, I will take a stab at question #2 - the IF Crystal for CW. The TR-4Cw
came with a third position on the Sideband switch. That position gives you the
500 Hz crystal for CW reception. On xmit you need to advance the gain a bit
more for the same plate current.
If you want an even
We are into trivial persuit big time :)
I have a late model TR4-CW/RIT (Ser. # 44679) - the original manual had
TR-4Cw on the cover, and the manual has the correct photo showing the
three position side band switch (the third position is the 500 Hz CW
position), plus the RIT and Noise
I will vouch for Gary's fine work . It is the heart and soul of the hobby.
I bought the TR-4C-rit and C-line CDs. Aside from the utility, they are
great to just look at. The additional files on Adverts. and Brochures are
also great to read.
73,
Kris (KA2OIG)
Merschrod
123 Warren Road
I thought that the question would have been answered by now - The knob on
the lower left of the TR-4 is an on switch and volume control.
If that is not changing the volume, then you have an issue.
Kris
Merschrod
123 Warren Road
Ithaca, NY 14850
www.merschrod.net
- Original Message
SRI I missed the AM action, but I was off at a meeting.
As far as the quality of AM -- I have gotten raving (positive :) comments
on the AM audio from both my TX-4C and the T-4 Reciter from some AM
audiophiles on 75 meters. They meet about 8 PM EST on 3.875 in the
evenings.
The trick is
Paul mentions report Covers The back of my TR-4CWx manual has a sheet of
blue plastic that is bound in the spiral that covers white back cover. I often
wonder what that is all about. I have not seen that on other, original, Drake
manuals. Has anyone else? I guess that it could be cut up
Does anyone have a Drake slip-type cabinet, the type used for RV-4s; MN2000s;
or even an MN4 that they would be willing to sell? Wear and tear acceptable,
but not all beat up!
Please send me a note at k...@merschrod.net
Kris (KA2OIG)
Merschrod
123 Warren Road
Ithaca, NY 14850
What are the B C versions of the L-4B? How do you tell them a part?
Kris (KA2OIG)
Merschrod
123 Warren Road
Ithaca, NY 14850
www.merschrod.net
- Original Message -
From: AirRadio
To: drakelist@zerobeat.net
Sent: Monday, September 14, 2009 10:07 AM
Subject: [Drakelist]
Dear Garey
It is wonderful to see you back at whatever keyboard is handy. This is a
great weekend. Congratulations and keep up the recovery,
Kris KA2OIG
- Original Message -
From: Garey Barrell k4...@mindspring.com
To: drakelist@zerobeat.net
Sent: Saturday, September 05, 2009
Super news Tom,
Many thanks for the relay ,
Hope fully Garey will enjoy the commentary on the net.
Kris KA2OIG
- Original Message -
From: Tom NØJMY n0...@hayseedhamfest.com
To: Glowbugs glowb...@piobaire.mines.uidaho.edu
Cc: Drakelist drakelist@zerobeat.net
Sent: Saturday, August 29,
As long as we are on the L4B - My project is to completely cleanup an L4B
(Serial # 6021 - about 1978) which I have had since the early 1980s. It did
not have any issues when I boxed it up about 1984. Now I have opened it up and
am cleaning it up - bsically a stiff paint brush and vacuum
Thank you, Jim, Mike and Pete,
The weather stripping sounds like an easy solution. I guess that it does
not get very hot down there below the tubes, just up in the chimneys.
73 for now,
Kris KA2OIG
- Original Message -
From: wa5...@peoplepc.com
To: Kris Merschrod k
Good afternoon Eddy,
A group of us have been trying to have a Drake's night out after the 3.965
swap net on Tuesdays at 8 PM Eastern. The idea is to hear other Drakes on the
air and just shoot the breeze. We check into the swap net (it sometimes only
lasts 10 minutes) to hear what is going
what the propagation will take :)
73,
Kris KA2OIG Merschrod
123 Warren Road
Ithaca, NY 14850
(607) 257-1734
www.merschrod.net/KA2OIG.htm
- Original Message -
From: Al Parker anc...@ec.rr.com
To: Kris Merschrod k...@merschrod.net; richard radke
rar...@excite.com; Edward Swynar gswy
This is a low tech and improvised approach. Use a small, low CF/min muffin
Fan from a computer; put some rubber pads on it so that it will exhaust upward
and set the fan on top of the cabinet above the final tubes.
Kris KA2OIG Merschrod
123 Warren Road
Ithaca, NY 14850
(607) 257-1734
@zerobeat.net;
Kris Merschrod k...@merschrod.net
Sent: Friday, May 29, 2009 9:55 AM
Subject: Re: [Drakelist] (no subject) cooling fan for Drakes
That is what I do. I use a 24VDC computer fan and run it at 12VDC.
Effective and quiet. Be sure to have it blow upward.
73,
Bob WW3QB
--- On Fri
Yes, Carl, the tuner was completely enclosed in an AL box and that slid into
the usual Drake black container. It was a beautiful shielding job.
They were built like a battleship and some folks modified them to handle other
bands. Great coils and great capacitors.
The only wear and tear that
I think that one of the guys who has drake parts and rigs on Ebay posted some
in the last month. Sorry about not being more specific.
Kris (KA2OIG) Merschrod
123 Warren Road
Ithaca, NY 14850
(607) 257-1734
www.merschrod.net (Site for reviewing the highlights of my book)
A Sociology: The
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