Adjustable Spark Gap No. 9220a |
1911–14 |
Amateur-D |
|
7 |
|
|
|
$ |
Arlington (NAA) "Electro" Baby Timer No. 4433 [Later version] |
1920 |
mod-pre26 |
|
2 |
|
|
|
|
Audion socket and filament control unit |
1915 ? |
Radio part |
|
7 |
|
|
|
$ |
Coherer |
1909 ? |
Radio part |
|
9 |
|
|
|
$ |
Eico Spark Gap |
1914 ?? |
Amateur-D |
|
2 |
|
|
|
|
Electro 1/2 K.W. Transformer Coil No. 8050 |
1914–18 |
Amateur-D |
|
4 |
|
|
|
|
Electro Adjustable High Tension Condenser No. 530 |
1912–20 |
Amateur-D |
|
9 |
|
|
|
|
Electro Adjustable High Tension Condenser No. 531 |
1912–20 |
Radio part |
|
4 |
|
|
|
|
Electro Antenna Switch No. 8100 |
1913–18 |
Amateur-D |
|
5 |
|
|
|
|
Electro Arlington (NAA) Baby Timer No. 4433 [Early version] |
1917/18 |
mod-pre26 |
|
10 |
|
|
|
|
Electro Bull-Dog Spark Coil 1-Inch No. DGE1088 |
1914–18 ?? |
Amateur-D |
|
4 |
|
|
|
$ |
Electro Commercial Detector No. 9500 |
1913/14 |
Radio part |
|
4 |
|
|
|
|
Electro Commercial Oscillation Transformer No. 9600 |
1913–18 |
Amateur-D |
|
4 |
|
|
|
|
Electro Commercial Spark Gap No. 9225 |
1914–16 |
Amateur-D |
|
6 |
|
|
|
|
Electro Commercial Wireless Receiving Outfit No. 1387 |
1916 |
Crystal |
|
2 |
|
|
|
|
Electro Fixed Condenser No. 10000 |
1910–14 |
Radio part |
|
4 |
|
|
|
|
Electro Galena Detector No. 9700 |
1915–20 |
Radio part |
|
7 |
|
|
|
$ |
Electro Junior Fixed Condenser No. 10010 |
1911 |
Radio part |
|
3 |
|
|
|
|
"Electro" Key-West (NAR) Radio Outfit No. 4444 |
1920 |
mod-pre26 |
|
2 |
|
|
|
|
Electro Loading Coil No. 8487 |
1915–20 |
Radio part |
|
4 |
|
|
|
$ |
Electro Loose Coupler No. 12000 |
1909 |
mod-pre26 |
|
1 |
|
|
|
|
Electro Loose Coupler 1914 version Cat. No. 12002 [7-Tap Switch Secondary] |
1914–20 |
mod-pre26 |
|
11 |
|
|
|
|
Electro-Lytic Bare-Point Detector |
1912–16 |
Radio part |
|
12 |
|
|
|
$ |
"Electro" Nauen (POZ) Radio Outfit No. 4477 |
1920 |
mod-pre26 |
|
6 |
|
|
|
|
Electro Navy Type 3 in 1 Coupler 1399 |
1914–20 |
mod-pre26 |
|
2 |
|
|
|
|
Electro Potentiometer No. 9250 |
1909–13 ? |
Radio part |
|
9 |
|
|
|
$ |
Electro Professional Loose Coupler |
1916 |
mod-pre26 |
|
10 |
|
|
|
$ |
Electro Professional Loose Coupler 14000 |
1914–20 |
mod-pre26 |
|
6 |
|
|
|
|
Electro Radiotone No. HK1800 |
1917–20 |
Radio part |
|
3 |
|
|
|
|
Electro Rheostat-Regulator No. 5000 |
1912–20 |
Radio part |
|
3 |
|
|
|
|
"Electro" Sayville (WSL) Radio Outfit No. 4455 |
1920 |
mod-pre26 |
|
2 |
|
|
|
|
Electro Sending Helix No. 9270 |
1908–16 |
Amateur-D |
|
3 |
|
|
|
$ |
Electro Special Sending Helix No. 9270a |
1909 |
Amateur-D |
|
1 |
|
|
|
|
Electro Tesla Transformer No. 7000 |
1914/15 |
Equipment |
|
9 |
|
|
|
|
"Electro" Trans-Pacific Receiving Outfit No. 1555 |
1920 |
Crystal |
|
2 |
|
|
|
|
"Electro" Tuckertown (WGG) Radio Outfit No. 4466 |
1920 |
mod-pre26 |
|
2 |
|
|
|
|
Electro Tuner No. 8486A |
1911 ?? |
mod-pre26 |
|
6 |
|
|
|
$ |
Electro Variable Condenser No. 9240 |
1908–14 |
Radio part |
|
4 |
|
|
|
$ |
Electro Vario Selective Coupler 11000 |
1914–20 |
mod-pre26 |
|
14 |
|
|
|
|
"Electro" Wireless Key No. 9212 [30 Amperes Capacity] |
1918–21 |
Morse+TTY |
|
8 |
|
|
|
$ |
Electro Zinc Spark Gap No. 9220 |
1908–20 |
Amateur-D |
|
2 |
|
|
|
|
Fixed Variable Condenser No. 10000 |
1916 ?? |
Radio part |
|
4 |
|
|
|
|
Gernsback Electrolytic Interrupter No. 8000 |
1913–18 |
Radio part |
|
3 |
|
|
|
|
Gernsback Rotary Variable Condenser No. 3500 |
1914–18 |
Radio part |
|
23 |
|
|
|
$ |
Head Receivers No. 1305 |
1909–14 |
Speaker-P |
|
4 |
|
|
|
|
Inter-Ocean Wireless Receiving Outfit No. 1550 |
1915–20 |
Crystal |
|
3 |
|
|
|
|
Interstate Wireless Receiving Outfit No. 1500 |
1920 |
Crystal |
|
4 |
|
|
|
|
Jr. Tuner Double Slide No. 9950 |
1911–14 |
mod-pre26 |
|
3 |
|
|
|
$ |
Large Tuner Frame No. 8486 |
1909/10 |
mod-pre26 |
|
10 |
|
|
|
$ |
Leyden Jar 1.5-Pint No. 9222 |
1908–19 |
Amateur-D |
|
2 |
|
|
|
$ |
Leyden Jar 1-Pint No. 9221 |
1908–19 |
Amateur-D |
|
2 |
|
|
|
|
Loose Coupled Tuner |
1911 ? |
mod-pre26 |
|
10 |
|
|
|
|
Peroxide of Lead Detector No. 9235 |
1911–14 |
Radio part |
|
11 |
|
|
|
$ |
Radiocite Crystal No. EK3939 |
1917 ?? |
Radio part |
|
3 |
|
|
|
|
RegenRec |
1919 |
mod-pre26 |
|
|
|
|
|
|
Spark Coil 1088 |
1907–10 ? |
Radio part |
|
1 |
|
|
|
$ |
Telim Auto-Coherer No. 1098 |
1908–10 |
Radio part |
|
5 |
|
|
|
|
Telimco Wireless Telegraph |
1905 |
Commercial TRX |
|
2 |
|
|
|
|
The Electro Loose Coupler 1912 Version Cat. No. 12002 [Early version double slide primary.] |
1911–14 |
mod-pre26 |
|
18 |
|
|
|
$ |
Transcontinental Wireless Receiving Outfit No. 1600 |
1914/15 |
Radio |
|
5 |
|
|
|
|
Transmitting Helix |
1914 ? |
Amateur-D |
|
5 |
|
|
|
|
Trans-Oceanic Undamped Wave Loading Coil No. HEK4500 |
1916–18 |
Radio part |
|
11 |
|
|
|
|
Zinc Spark Gap |
1913 |
Amateur-D |
|
4 |
|
|
|
$ |