| No. |
Style |
Code
Practice Oscillators Currently in the Museum |
| 1 |
Other |
Heathkit HD-1416 "Code Oscillator" (green
plastic) |
| 2 |
Other |
Heathkit HD-1416A "Code Oscillator" (brown
plastic) |
| 3 |
Box |
Midland 18-273 "Transistor Code Oscillator" |
| 4 |
Box |
Realistic 20-007 "Transistor Code Oscillator",
PB |
| 5 |
Box |
Midland 25-109 "Transistor Code Oscillator" |
| 6 |
Other |
Calrad 70-376 " Code Practice Oscillator", PB |
| 7 |
Box |
EICO 706 "Code Oscillator", PB |
| 8 |
Box |
EICO 706A "Code Oscillator", PB |
| 9 |
Box |
Clarion 85-120 "Code Oscillator", PB |
| 10 |
Tube |
AMECO CPS, tube, (hammertone gray) |
| 11 |
Box |
Heathkit CO-1 "Code Oscillator" |
| 12 |
Box |
Calrad C.O.S. "Transistor Code Oscillator", MB |
| 13 |
Box |
Calrad C.O.S. "Transistor Code Oscillator", PB |
| 14 |
Tube |
AMECO CPS, "An Aerotron Product", tube, (black
box) |
| 15 |
Tube |
AMECO CPS, "An AMECO Product", tube, (black box) |
| 16 |
Key |
Calrad key/buzzer w/original box |
| 17 |
Key |
Fleron "Signaler" key/buzzer |
| 18 |
Tube |
Gonset "Oscillator Monitor", tube |
| 19 |
Other |
Hallicrafters HA/18A "Code Practice Oscillator"
w/original box and key |
| 20 |
Other |
Heath HD-16, sloping metal box, uses unijunction FET |
| 21 |
Tube |
ICA Insuline Corp of America, "SIGNA TONE"
classroom model No. 4301 |
| 22 |
Tube |
ICA "DE LUXE SIGNA TONE" model No. 4300 |
| 23 |
Box |
Jackson 262, PB, uses CK729 |
| 24 |
Box |
Kent Morse Practice Oscillator |
| 25 |
Box |
Knightkit LC-1 |
| 26 |
Box |
Allied Knight-kit Transistor Code Practice Oscillator
83Y239 |
| 27 |
Box |
Monarch KY-106 "Code Oscillator", PB |
| 28 |
Box |
Lafayette "Code Oscillator", PB |
| 29 |
Other |
LRE wireless code oscillator |
| 30 |
Auto |
MFJ Model MFJ-411 "Pocket Morse Tutor" |
| 31 |
Box |
AMECO OCM "Code Practice Oscillator", PB |
| 32 |
Box |
AMECO OCM-2 "Code Practice Oscillator", PB |
| 33 |
Box |
AMECO OM "Code Practice Oscillator", PB |
| 34 |
Other |
Realistic plastic enclosure, newer style |
| 35 |
Tube |
TAC tube, metal box |
| 36 |
Tube |
BUD CODEMASTER, tube, (gray w/red marking, w/o speaker) |
| 37 |
Tube |
BUD CODEMASTER, tube, (gray w/red marking, vertical) |
| 38 |
Tube |
BUD CODEMASTER, tube, (gray w/red marking, horizontal,
w/speaker) |
| 39 |
Tube |
BUD CP-128-B CODEMASTER |
| 40 |
Box |
TEI Electronic Products Stock No. 31.141 Transistor Code
Oscillator |
| 41 |
Key |
E. F. Johnson Speed-X key/buzzer |
| 42 |
Key |
MFJ Model MFJ-557 integrated code practice oscillator/key
on weighted base. |
| 43 |
Key |
Wm. Nye integrated key/oscillator |
| 44 |
Auto |
AEA MM3 "Morse Machine", integrated keyer and
trainer |
| 45 |
Other |
Cordover CPO module in point of sale package |
| 46 |
Other |
HI-Mound COK-2 "Cw code Oscillator" |
| 47 |
Other |
Swallow "Midget Code Practice Oscillator" with
two keys/earphones |
| 48 |
Key |
Monarch Square Code Practice Key with Buzzer |
| 49 |
Key |
Herald SW-12A Telegraph Key with Buzzer |
| 50 |
Other |
SPECO CPO-K |
| 51 |
Key |
ADM key/buzzer |
| 52 |
Auto |
Heathkit Ultimatic |
| 53 |
Other |
Ramsey UT-5 Universal Timer-Oscillator Kit |
| 54 |
Other |
Military instruction set |
| 55 |
Other |
AMECO CPS M-T Transistorized Code Practice Oscillator
& Monitor |
| 56 |
Other |
EICOCRAFT EC-1000 Solid-State Electronic Code Oscillator
Kit |
| 57 |
Key |
Triplex key/buzzer |
| 58 |
Key |
"Mousetrap" style key/buzzer |
| 59 |
Key |
Military key/buzzer set from New Zealand |
| 60 |
Other |
MFJ Model MFJ-554 Classroom Code Practice Oscillator |
| 61 |
Box |
ALCO Code Oscillator model LG 150 |
| 62 |
Other |
Heathkit HD-1416A "Code Oscillator" (black
plastic) |
| 63 |
Other |
Bud C. P. O. -155T transistorized Code Practice Oscillator
and Monitor |
| 64 |
Key |
Shield SW-134 Telegraph Key with Buzzer |
| 65 |
Key |
Herman H Smith Cat No. 2443 Code Practice Key & Buzzer
Set |
| 66 |
Key |
Philmore Electronic Products Model CP250
Code Practice Set w/box |
| 67 |
Auto |
AEA Keyer-Trainer for Morse Code Model
KT-2 |
| 68 |
Tube |
ICA "DE LUXE SIGNA TONE" model No. 4300
(variant) |
| 69 |
Key |
Official Boy Scout Radio Blinker Telegraph No. 1095B -
metal box key buzzer |
| 70 |
Other |
Unknown brand wireless Code Oscillator Model TE-22 |
| 71 |
Other |
Radio Shack Code Oscillator Module
Catalog Number 20-1155 |
| 72 |
Key |
Monarch Model KY 200 Morse Code Kit |
| 73 |
Key |
Official Boy Scout Twin Signal Set |
| 74 |
Key |
Signal wood base with code chart |
| 75 |
Other |
Graymark Educational Products Code Oscillator Student
Project 503 |
| 76 |
Box |
Realistic Code Oscillator 20-007A (square speaker grille) |
| 77 |
Key |
Codemaster Telegraph Signal Set |
| 78 |
Key |
Fleron Official Boy Scout Signaler |
| 79 |
Other |
MFJ Model MFJ-555B Code Practice Oscillator |
| 80 |
Box |
Lafayette Model 99-25603 Code Oscillator |
| 81 |
Key |
Brumberger Codemaster Telegraph Signal
Set |
| 82 |
Key |
Signal R-68 Wireless Practice Telegraph
Key in Box |
| 83 |
Key |
Strauss Mechanical Toys Standard Radio Telegraph Signal
Set |
| 84 |
Other |
Novelty AM radio/code practice oscillator with fake
sounder |
| 85 |
Key |
Wilson Buzzer, Practice, Cadet Type Model W-68, made in
Canada |
| 86 |
Auto |
MFJ Model MFJ-452 Morse Keyboard Keyer |
| 87 |
Key |
Gilbert Tele-set key buzzer |
| 88 |
Auto |
Computer Aided Technology Delux Plus Morse Code Trainer |
| 89 |
Key |
Official Scout Twin SOS Signaller set No.1213 |
| 90 |
Other |
Vectronics VEC-254 Classroom Code Practice Oscillator |
| 91 |
Tube |
Bud Codemaster CPO-130A (without speaker) with Trimm
Featherweight headphones |
| 92 |
Other |
Ramsey CPO3 Code Practice Oscillator Kit |
| 93 |
Key |
Connecticut Telephone & Electric Corp key buzzer set |
| 94 |
Key |
Codemaster key buzzer |
| 95 |
Key |
Lafayette Code Practice Telegraphic Set no. F-552 |
| 96 |
Key |
Fairylight? No. 107 Space Station Morse Code Signalling
Set, Hong Kong, toy key buzzer, blue |
| 97 |
Key |
K & B Mfg., TeleMaster Morse Code Set |
| 98 |
Key |
Elkay Mfg. A-1 Postal Telegraph
Tri-Signal toy set |
| 99 |
Key |
John P. Ryan Co. Official Boy Scout
Triple-Signal Set - Lancaster, 1932 |
| 100 |
Key |
Vectronics VEC-212 Practice Oscillator |
| 101 |
Key |
Smith Code Practice Oscillator and Monitor |
| 102 |
Other |
MFJ CPO-555 |
| 103 |
Key |
Philmore Electronics Products Model 750
Telegraph Code Practice Set (J-37 key variant) |
| 104 |
Key |
Glotone morse code key buzzer |
| 105 |
Key |
Fleron metal key buzzer |
| 106 |
Key |
Uncle Sam Morse Code Record and Signal Key No. S-300 |
| 107 |
Tube |
Telegraph Apparatus Co. NOT INC (Ted McElroy) code
practice oscillator |
| 108 |
Key |
Official Boy Scout No. 1096 Twin Signal
Set in Box |
| 109 |
Key |
Fairylite No. 107 Space Station Morse Code Signalling Set,
Hong Kong, toy key buzzer, yellow |
| 110 |
Mechanical |
Instructograph - 1932 |
| 111 |
Tube |
Bud Codemaster, square box cabinet style |
| 112 |
Key |
Heathkit/Daystrom model SK-80 Science Series Code Sending
Kit |
| 113 |
Key |
Air Champ Western Union model M. V. 400 Standard
Radio-telegraph Signal Set |
| 114 |
Other |
Eicocraft EC-1000 Code Oscillator Project Kit |
| 115 |
Key |
Official Boy Scout No. 1098 Twin Signal Set in box |
| 116 |
Key |
Fleron Signaler No. 1096-B Radio Code Practice Set |
| 117 |
Key |
Connecticut 3-Way Telegraph Set 1701-W (two units) |
| 118 |
Key |
Buzza key buzzer, made in Sydney Australia |
| 119 |
Other |
CPO-5, manufacturer unknown |
| 120 |
Key |
Aurora Plastics Kit No. 1601 Telegraph Signal Set |
| 121 |
Key |
K & B Manufacturing Stock No. 1602 Twin Telegraph Set |
| 122 |
Key |
Blue Point key buzzer X10B from Australia |
| 123 |
Key |
Blue Point key buzzer XX20B from Australia |
| 124 |
Key |
ICA Insuline Corporation of America Triplex Radio and
Telegraph Signal Practice Twin Set No. 71 |
| 125 |
Key |
Brumberger No. 396 Official Codemaster Telegraph Signal
Set |
| 126 |
Key |
S. B. Mfg Co. Western Union Deluxe Radio-telegraph Signal
Set No. 200 |
| 127 |
Key |
A Mack Product - Western Union No. 165 Standard Radio
Telegraph Set |
| 128 |
Key |
Aerovox Corporation E-Z-code Jr. E Z-101 buzzer/electric pencil |
| 129 |
Key |
Boy Scouts of Canada #71-287 Signal Set |
| 130 |
Other |
Calrad T. C. O. Transistorized Code Oscillator |
| 131 |
Key |
Pressman Toy Corp Code & Decode Message Set |
| 132 |
Other |
Jackson Printing Press Secret Codes Science Action Book w/morse code unit |
| 133 |
Tube |
T. R. McElroy's Audio Oscillator |
| 134 |
Tube |
AMECO Code Practice Oscillator (pre CPS?) |
| 135 |
Key |
Signal Electric Mfg Co. R-69 Practice Set in box |
| 136 |
Other |
Codekey 1000, Media Mentors mfg by Circuit Deve. |
| 137 |
Key |
Unknown keybuzzer |
| 138 |
Box |
Knight LC-2 Code Oscillator |
| 139 |
Auto |
MFJ-418 Pocket Code Tutor w/LCD display |
| 140 |
Key |
Space Station Morse Code Signalling Set |
| 141 |
Key |
Aurora twin telegraph set |
| 142 |
Key |
Menominee Electric Mfg. Co. key buzzer |
| 143 |
Box |
AMECO model OM Code Practice Oscillator CW Monitor (red) |
| 144 |
Key |
Uncle Sam No. 575 Morse Code Signal Key |
| 145 |
Auto |
AEA Model MT-1 Keyertrainer |
| 146 |
Other |
Graymark Morse Code Kit |
| 147 |
Key |
"Doodle Bug" ROVER model Morse Key |
| 148 |
Other |
Electronic Kits International series 1000 kit |
| 149 |
Key |
Fleron Signaler Set No. 1213 |
| 150 |
Other |
OK Electronics Hobby Assembly Kits model EK5 Morse Code
Practice Kit |
| 151 |
Key |
Signal Electric Mfg Co. R-70 Signal Jr. Twin Wireless
Practice Set in box |
| 152 |
Auto |
MFJ-417 Pocket Morse Code Tutor |
| 153 |
Key |
John P. Ryan Co. Official Boy Scout Triple Signal Set
(note BSA emblem) |
| 154 |
Key |
Fleron (BSA Supply) Official S-O-S Signaler |
| 155 |
Auto |
AEA DQ-64 Doctor QSO Morse Code Trainer for the Commodore
64 Computer |
| 156 |
Key |
Fleron Official Boy Scout Radio Blinker Telegraph No. 1095
- older yellow box version (see also cp069) |
| 157 |
Key |
Woodham Metal Stamping Co. Inc "The Master Tri-Signal
Set" |
| 158 |
Key |
ARMACO (R. Mack & Co. LTD) TELB Code Practice Key and
Buzzer |
| 159 |
Other |
Kanga G-QRP Club Code Practice Oscillator & R. F.
Sidetone Kit |
| 160 |
Tube |
Codemaster Model K, wood box with built-in plunger key |
| 161 |
Other |
Knapp Electric Corporation No. 325 Electric Questioner
Telegraph Practice Buzzer |
| 162 |
Tube |
T. R. McElroy Oscillotone |
| 163 |
Tube |
Johnson Signal Sentry |
| 164 |
Other |
Electronics USA Model O-2 Code Buddy Code Practice
Oscillator kit |
| 165 |
Other |
Lake Electronics CPO5 Code Practice Oscillator kit |
| 166 |
Key |
Argonne Electronics Mfg, Corp, [sic] AR-323 Telegraphic
Key w/Buzzer |
| 167 |
Key |
"Doodle Bug" SCOUTMASTER model Morse Key (note
cycle battery) |
| 168 |
Tube |
Telegraph Apparatus Co. (Ted McElroy) code practice
oscillator - 117N7GT in metal box |
| 169 |
Key |
Official Boy Scout No. 1096 Signal Set in box |
| 170 |
Key |
Herald SW-134 Telegraph Key with Buzzer |
| 171 |
Tube |
Bud Codemaster (red letters, without speaker) |
| 172 |
Other |
Trans-Key Monitor Transistorized Oscillator |
| 173 |
Key |
Triplex Twin Set No. 71 Radio & Telegraph Signal
Practice Set |
| 174 |
Auto |
AEA MM2 MorseMatic Keyer/Trainer |
| 175 |
Key |
Irwin Desman LTD NSN 6940-99-219-2848 Morse Key Trainer |
| 176 |
Tube |
BUD CODEMASTER (tall, white letter, speaker grille insert) |
| 177 |
Mechanical |
Instructograph Model 500 (DC motor - transistor
oscillator) |
| 178 |
Mechanical |
Instructograph Code Instructor (AC motor - transistor
oscillator) |
| 179 |
Key |
British Buzzer Practise 10F/4067 |
| 180 |
Key |
McElroy rectangular base key with "hummer"
buzzer |
| 181 |
Key |
British Buzzer Practise 10F/4067 |
| 182 |
Mechanical |
Instructograph Code Instructor (AC motor - tube
oscillator) |
| 183 |
Other |
Laffayette Radio Electronics Corporation Transistorized
Code Practice Midget Oscillator F-249 |
| 184 |
Key |
Calrad KB 1.5 Buzzer (Older style box) |
| 185 |
Other |
B. G. L. Morse Telegraph Set |
| 186 |
Key |
S. B. Mfg Co. Western Union Deluxe Radio-telegraph Signal
Set No. 200 (package variant) |
| 187 |