K5RW's list of duplicate keys for trade
Neal McEwen, K5RW
Office Main Page
I have the following telegraph keys and other related items
for trade. These are either duplicates or items that don't fit my
collection. All items are complete and functional with all
parts unless otherwise stated.
I do not wish to sell these items!!!
As you are well aware, it is easier to find a new item for you
if you have something to trade. See
Trade List last updated 30 Aug. 2004
I am looking for keys and related items I don't have. I like pre-1910
landline keys , sounders and relays, early or oddball or off
bugs, call boxes and Spark keys. I am also a sucker for
wireless items such as detectors, loose
spark gaps, etc. And I also like old books on telegraphy and wireless.
So you have the gamut with which to peak my interest in a trade.
- 41. Bunnell KOB with Skirrow sounder -- Unusual Skirrow
the coils are horizontal rather than vertical. The armature is
Real clean. photo.
42. GPO polar relay -- British GPO vertical relay used in
telegraphy. Vertical style with brass tube case and beveled glass
top. Very Nice. photo.
45. Pair of Foote Piersen pen registers -- Similar to pen
shown in Bunnell catalogs. One has a serial number in the 3,XXX range
the other in the 8,XXX range. One has the glass window broken, and a
spring. The other does not move the gears well. From the two you can
a good one. I'll even throw in a roll of paper tape for it. These are
heavy, so prefer local pickup, but will ship if really needed.
48. MESCo One Line Pegboard -- One line pegboard made by
Electrical Supply Co.
50. Marconi key -- Replica of wireless key used on RMS
Made from photographs and measurements of the key from the Titanic's
ship, the RMS Olympic. Very high quality brass and wood.
a few made by Don, W2CUV, now a Silent Key. photo
67. Lionel J-38 -- This key was used at the big coastal
station KLC at Galveston, TX. Authenticated by K6HL. Used to test a
Radio transmitter. The key is rather beat up, but a part of history.
69. Branston Tri-lateral coils -- Three honeycomb
mounted on adjusting device to vary the coupling between them..
on front panel of early receivers. Like new; best I've ever seen.
71. FADA detector -- 1920s vintage detector. Mineral and
whisker are in a capped glass tube. Very nice condition.
72. Loose Coupler -- Unmarked small size loose coupler
receiving transformers in the teens.) c. 1915 - 1920.
One binding post is slightly large than the others, but from the same
Made for amateur and experimenter market. photo
74. Vibroplex Dual Lever bug -- This one has a C3 nameplate
and is serial number 76742. Has the less common 'cloverleaf' frame.
The base appears to have been professionally refinished. It has a very
fine black wrinkle finish and the brads holding the label have been
with screws. The jam nuts do not look original but curiously all of
match. Nickel plate dull. Otherwise clean and works fine.
photo1 and photo2.
75. Loose Coupler -- Larger square looking loose coupler.
Has "Navy" style primary taps on bakelite face. Unmarked.
clean. Looks like it has been recently restored. photo.
76. McElroy CP-500 bug -- This is just like the McElroy P-500
the base and frame are smooth gray; a seldom seen model. Weight
fingerpieces not original. Label shows rusting. photo.
77. Martin Original -- This one has a B4 nameplate and
serial number 50591. The paint is in very good shape for a bug this
although a lot of the gold striping is gone. Very dirty, missing
but otherwise all original except for the rubber feet.
78. early Vibroplex Original -- This one has a 'bug'
and is serial number 99792, placing it in the early 20s. This bug is
in every regard except for slight loss of gold striping. A real
79. A-to-Z bug with Albright label and preloading dot spring
-- This A-to-Z has had the original label removed and an Albright label
has taken its place. The telltale "1" is cast into the
The Albright serial number is "124" with "WUTCo" hand stamped next to
The dot spring collar has a seldom seen pretensioner on it. The
is devoid of any paint. This bug has a shortened pendulum and the
damper has been moved accordinly. Nickel plated base with four
holes. Rubber feet not original. Knob not original.
circuit closing lever. This bug sends good code. photo1.
80. Martin #4 / Blue Racer -- serial B1623. jappaned base, not
like some. Paint in fair to good shape, Nickel average for Martin this
old. Has two weights, one has original screw, the other gone. Missing
button. Paddle not original. Missing Martin label. I have kept this #4
in the garage for many years thinking I'd use it for spare parts.
I've not been able to bring myself to rob parts from it. With a Martin
label, it would be a nice bug.
82. Signal Corps J-38 -- Brass signal corps
No makers mark, but looks to be made by Singal Electric.
stamped into oval base under gap adjusting screw. Knob not
Remanant of silver paint where someone tried to be handy! photo1
83. Toy Electric Motor -- c. 1910. Novelty electric motor
from teens. Brass plate on top reads "Little Hustler." Wood
base not original. Photo.
85. Unmarked 'bull nose' sounder -- 'Bull nose' design,
made by New Haven Clock Co. c. 1885. Solenoids do not appear to be
Otherwise fine, though a little dirty. photo
89. Moorehead tubular audion -- This tube is shown in Stokes
Years of Radio Tubes and Valves", page 26 It has a split plate with the
marking "E.R." on it, signifying "Electron Relay". This tube is vintage
92. Wheatstone Bridge -- Laboratory instrument by G. H.
Co., Chicago, Ill. For use with external resistance box and galvo. Has
two strap keys on top. Resistors on underside of base wound with cotton
covered wire. Label on bottom say "G. H. Stoelting Co. / No. 1900 /
Wheatstone Bridge / List $6.75" Very nice condition. Not sure of
93-1. Book -- "Early American Scientific Instruments and
Makers, Smithsonian Institution", 1964. This is the early stuff:
surveying, clocks, drafting, compasses, etc. NO TELEGRAPH.-- too early.
93-2 Book -- "Army Technical Manual TM 11-459 International
Code (Instructions)" A simple primer on learning the
Morse Code including how to copy on a typewriter.. Also show
of a key and bug and how to set them up and use them.
93-7. Signal Electric Catalog -- small pamphlet, "Fundamentals
Radio Keying and Telegraphy for Beginners. No date, but probably 1930s.
Shows the ubiquitous R-series and other keys we are used to seeing from
Signal. Yellow and fragile but all there.
94. Vibroplex Presentation -- This is model with the gold plate
on the base and the "LaHiff" adjustable pendulum spring. This one has
engraved by the factory and was a retirement gift. "To Gil Mears,
Pioneer, 73" followed by 12 names. As the engraving occupies most of
top surface the label is riveted to the bottom and the serial number is
obscured by a connecting strap. Excellent condition. Photo1,
96. Greeley sounder -- All brass sounder c. 1890 minus the wood
base. From the sub-base on up it is complete and very beautiful.
stamped "E. S. Greeley & Co. / Successor to / L. G. Tillotson &
Co. / New York" This design is the one where the armature return spring
is horizontal under the armature and in tension. photo
98. Bunnell tape puller -- This is the more modern design.
motor. Painted battleship gray (original). Used to pull pen register
or teletype tape. Works fine. Photo.
105. "Albright" bug -- This is an A-to-Z bug that has
the label removed and replaced with an Albright license. "This machine
is NOT guaranteed NOR made but only licensed by J. E. Albright., 253
New York. W.U.T.Co No. 1331". There are at least four different
of Albright labels. Albright was a partner with Martin and sold
labels to owners of bugs made in violation of the Martin patents. This
bug is complete but in rough shape. vintage pre-WWI. The original
initials must have been 'LX" as they have been scratched several times
into the japanned base and punched several times into the damper and
The label is in very good condition. The is a large chip out of the
piece and no weight. Otherwise complete.
106. A-to-Z bug -- This A-to-Z bug has had the label
as have a large percentage of the bugs made in violation of the Martin
patents. The frame, pinned lever and hardware are like the A-toZ bugs.
It has the tell tale A-to-Z "1" cast into the base. The
posts are rather large and don't look like A-to-Z binding posts but do
not look like replacements. No screw for the weight. No lever return
Finger pieces have been reworked such that there are two paddles and a
button. straps on bottom are newer. Top trunion screw may not be
original. Nickel plated base. Handsome bug. photo.
111. early SPEED-X bug -- This bug has a very strong resemblance
to a "reverse frame" Logan. The knurling of the screws is, however
This might be a very early Logan 500 or its predecessor at SPEED-X
Mfg. Black wrinkle finish. Original weight has been replaced with a
large one for lower pendulum speed. My friend Randy Cole has this bug's
twin and he also thinks it is of Logan heritage. c. late 1920s or
126. Novelty Key Stapler -- Stapler made to resemble a
key. Resembles a pole changer key. Ornate and real ugly at the same
127. 19th century Scottish Thermostat -- See photo at http://www.megasource.com/k5rw/scottish_key.jpg
The base is cast iron, hollow on the underside. There is a piece of
tape on the underside that says "Scotland 1882." The frame is hot,
connected to the near terminal. The upper adjusting mechanism is at
potential. The Bottom contact and far terminal are isolated and
The lower adjusting screw has a contact, much like the anvil on a
key. Along the top of the 'strap' is a material like gutta percha. It
held in place by 14 small rivets or brads. Similar thermostats shown in
early MESCo and Bunnell catalogs.
130. Tangent Galvonometer -- Old style galvanometer by Griffin
Tadlock of England. Hard to date; most likely from 1925 to
Proabably from physics or EE lab. Works fine! photo1,
140. W.W.I era Centennial ticker dater -- Dater used in
depots. Japanned finish. Die says "OFFICE OF BOARD OF
SERVICE." Interchangeable die. Needs inking ribbon,
I am NOT interested in:
Foreign keys, except for spark keys ,
landline keys, pre-1930 wireless keys, Oeller style keys and unusual
Post 1925 military keys, except for a
Metal Stamping J-36 bug.
Vibroplex bugs with a serial number
than 5,000 (except for Norcross or Atlanta models, or models with red,
green or blue bases, and the Vertical, Midget and Autoplex models).
Fire Alarm Telegraph and Police Alarm
Johnson, Logan, Cedar Rapids, Telegraph
Hi-Mound, or Lionel bugs.
Instructographs or similar paper tape
Post 1900 learner's sets, unless
If you have something to trade and don't see anything you like
here, perhaps I can dig a little deeper. Let me know what you are
for. There are only a handful of items in my collection that I would
trade, given the right opportunity.
You could turn me on with a Postal
bug, A-to-Z bugs, Pump Handle key, red, blue or green
a "half frame" Martin, Bunnell mechanical learners set No 2, spark
most any camelback key, especially a Phelps, a pocket test set,
early sounders (pre-1880) , weight driven registers, early
a J-1, J-2, J-3, or J-6, a U. J. Frye key, Milliken relay,
keys, call boxes, Mallet perforator and bugs with an Albright
I've also got the hots for an IP-501, a
loose coupler, Western Union style tangent style galvanometer and a
If you have something I am really interested in, and we don't have
even trade, I will trade two, three or however many of my items it
for an even trade.
I am an easy guy to trade with. Until you are happy, the deal is not
done. Take a look at the key I send you. If you are not happy, send
it back. If you like what you see, send me your stuff.
When corresponding, please refer to the item number. You may reach
in the evening at 1(972)234-1653 or e-mail me at email@example.com
73 de Neal, K5RW