| Electrolytic Anti-Coherer [DeForest-Smythe] |
1899–01 ? |
mod-pre26 |
|
2 |
 |
|
|
|
| American DeForest 1904 Receiver |
1904 |
mod-pre26 |
|
6 |
 |
|
|
|
| Syntonizer (Syntoniser) |
1904–08 |
mod-pre26 |
|
4 |
 |
|
|
|
| Spade Responder |
1905/06 |
mod-pre26 |
|
1 |
 |
|
|
|
| Loose Coupler Type E |
1909 |
mod-pre26 |
|
5 |
 |
|
|
|
| R-J Tuner Loose Coupler |
1909 |
mod-pre26 |
|
2 |
 |
|
|
|
| R-J Variometer |
1909 |
mod-pre26 |
|
13 |
 |
|
|
|
| R. J. Wavemeter |
1909 |
Equipment |
|
1 |
 |
|
|
|
| Variable Condenser Type V.C. 3.5 |
1911–16 ?? |
mod-pre26 |
|
4 |
 |
|
|
|
| Audion Detector RJ5 |
1913 |
mod-pre26 |
1 - Audion_dbw |
21 |
 |
|
|
$ |
| Radio Tel & Tel RJ-4 [3 Point Tap Switch] |
1913 |
mod-pre26 |
1 - AUDION_DeForest |
20 |
 |
|
|
$ |
| Bulletin C 14 |
1914 |
Paper |
|
4 |
 |
|
|
|
| R.J.4 (RJ4) |
1914 |
mod-pre26 |
1 - Audion_dbw |
28 |
 |
|
|
$ |
| Ultraudion Receiver |
1914 |
Radio |
1 - Audion_dbw |
1 |
 |
1S |
|
|
| Ultraudion, Siren and One-Step Amplifier |
1914 |
Equipment |
1 - Audion_dbw |
15 |
 |
|
|
|
| Audion Detector and Amplifier 14T (not from De Forest) |
1914 ?? |
mod-pre26 |
2 - Audion_dbw |
5 |
 |
|
|
|
| One Step Audiophone Amplifier (Audion) PJ-1 |
1914/15 |
Ampl/Mixer |
1 - Audion_dbw |
16 |
 |
|
|
|
| Audion Time Receiver |
1915 |
Commercial Re |
1 - Audion_dbw |
2 |
 |
|
|
|
| Audion Detector Professional Type |
1915 ? |
mod-pre26 |
2 - Audion_dbw |
3 |
 |
|
|
|
| Audion & Three Stage Amp |
1915 ? |
Radio |
4 - Audion_dbw |
1 |
 |
|
|
|
| Audion-Ultraudion |
1915 ?? |
mod-pre26 |
1 - Audion_dbw |
1 |
 |
|
|
|
| Undamped Wave Oscillator |
1915 ?? |
mod-pre26 |
1 - Ultraudion |
1 |
 |
|
|
|
| Audion RJ9 |
1916 |
mod-pre26 |
1 - Audion_dbw |
2 |
 |
|
|
$ |
| Audion Amplifier EJ-1 |
1916 |
Ampl/Mixer |
1 - Audion_dbw |
2 |
 |
|
|
|
| Audion Detector RJ 8 |
1916 |
mod-pre26 |
1 - Audion_dbw |
18 |
 |
|
|
|
| Audion Receiving Cabinet Type R J 6 |
1916 |
Radio |
1 - Audion_dbw |
9 |
 |
|
|
$ |
| Audiophone 3-Stage Audio Amplifier |
1916 |
mod-pre26 |
3 - Audion_dbw |
2 |
 |
|
|
|
| Combination Audion Detector |
1916 |
mod-pre26 |
2 - Audion_dbw |
2 |
 |
|
|
|
| Detector Panel RJ9 |
1916 |
mod-pre26 |
1 - Audion_dbw |
15 |
 |
|
|
|
| RJ-X |
1916 |
Radio |
1 - AUDION_DeForest |
20 |
 |
|
|
|
| Ultraudion Detector UJ 1 |
1916 |
mod-pre26 |
1 - T_deForest |
17 |
 |
|
|
|
| Audion Amplifier EJ1-2 |
1916 ? |
Ampl/Mixer |
1 - Audion_dbw |
3 |
 |
|
|
$ |
| RJ-7 |
1916/17 |
Radio |
2 - Audion_dbw |
5 |
 |
|
|
|
| Audion Amplifier Type EJ2 |
1917 |
Ampl/Mixer |
1 - Audion_dbw |
19 |
 |
|
|
|
| Audion Control Box Type CF122 |
1917 |
mod-pre26 |
1 |
3 |
 |
|
|
|
| Laboratory Oscillion Type-S |
1917 |
Equipment |
1 |
1 |
 |
|
|
|
| Loading Inductance Type RJ11 |
1917 |
mod-pre26 |
|
12 |
 |
|
|
|
| Oscillion Telegraph Transmitter Type OJ3 |
1917 |
Amateur-T |
1 |
1 |
 |
|
|
|
| Variable Condenser Type VC4 |
1917 |
mod-pre26 |
|
7 |
 |
|
|
$ |
| Radio Receiving Set Type BC-14 A (SCR-54A) |
1918 |
Mil Re |
|
18 |
 |
1S |
|
$ |
| SCR-55 Vacuum Tube Detector DT-3A |
1918 |
Militar |
1 - VT-1 |
5 |
 |
|
|
$ |
| Radio Receiver Long Wave Type |
1918 ?? |
mod-pre26 |
|
12 |
 |
|
|
|
| Audion Control Panel Type P-401 |
1919 |
mod-pre26 |
1 |
11 |
 |
|
|
|
| Audion - Ultra Audion Panel P-500 |
1919 |
mod-pre26 |
1 - VT-1 |
8 |
 |
|
|
|
| Audion-Ultraudion Detector Panel Type P-500 [Early] |
1919 |
mod-pre26 |
1 - VT-1 |
13 |
 |
|
|
$ |
| Coupler for Honeycomb coils LC-100 (Dalton) |
1919 |
Radio part |
|
2 |
 |
2S |
2F |
$ |
| Crystal Detector Set 3 panel |
1919 |
Galena |
|
6 |
 |
|
|
|
| D-101 Crystal Detector |
1919 |
Radio part |
|
3 |
 |
|
|
$ |
| Fifteen Panel |
1919 |
Radio |
3 |
8 |
 |
|
|
$ |
| Plug in coils |
1919 |
Radio part |
|
5 |
 |
|
|
$ |
| Utility Time Receiver RS-200 [Engraved panel] |
1919 |
Radio |
1 - VT-Class-I |
10 |
 |
|
|
|
| 1st Post WWI Radio Apparatus catalog |
1919 |
Paper |
|
56 |
 |
|
|
|
| Audion Control Panel P-400 |
1919 ? |
mod-pre26 |
1 |
6 |
 |
|
|
|
| Audion Control Panel Type P-100 |
1919 ? |
mod-pre26 |
1 - VT-Class-I |
3 |
 |
|
|
|
| Audion Panel P-402 |
1919 ? |
mod-pre26 |
1 |
|
|
|
|
|
| Unit Receiver 9 Panels |
1919 ? |
teaching |
|
1 |
 |
|
|
$ |
| 90° Variable Air Condenser CV-500 |
1919 ? |
Radio part |
|
1 |
 |
|
|
|
| Two Step Audion Amplifier Type P-200 |
1919/20 |
Ampl/Mixer |
2 - VT-Class-II |
18 |
 |
|
|
$ |
| Bridging or Loading Condenser CS-3002 (Glen) |
1920 |
Radio part |
|
9 |
 |
|
|
$ |
| Commercial Receiver RS-500 |
1920 |
Radio |
2 - VT-Class-I |
2 |
 |
|
|
|
| Detector and One Stage Amplifier Type P-300 |
1920 |
mod-pre26 |
2 - VT-Class-I |
11 |
 |
|
|
$ |
| Differentially Balanced Double Multi-wave Tuner Type T-100 |
1920 |
mod-pre26 |
|
3 |
 |
|
|
$ |
| Jewelers Time Receiver RS-100 |
1920 |
Radio |
1 - VT-Class-I |
2 |
 |
|
|
|
| Mounted Triple Coil Mounting LC-101 (Dennison) [Oak Base] |
1920 |
Radio part |
|
13 |
 |
|
|
$ |
| Mounted Triple Coil Mounting LC-201 (Denver) [Oak Base with Primary Condenser Switch] |
1920 |
Radio part |
|
9 |
 |
|
|
$ |
| Radio-Craft SW |
1920 |
mod-pre26 |
|
1 |
 |
|
|
$ |
| Radio-Craft SW-LW |
1920 |
Radio |
|
|
|
|
|
$ |
| Radiophone Portable Transmitter Buzzer Type OT-5 |
1920 |
Amateur-T |
3 |
2 |
 |
|
|
|
| T200P300 |
1920 |
Radio |
2 - VT-Class-I |
8 |
 |
|
|
$ |
| Tuner Type T-200 |
1920 |
mod-pre26 |
|
15 |
 |
|
|
$ |
| UtilityTime Receiver RS-200 (Rainbow) |
1920 |
Radio |
1 - VT-Class-I |
5 |
 |
1S |
|
$ |
| Variable Condenser CV-1003 (Elliot) [Unmounted with vernier] |
1920 |
Radio part |
|
|
|
|
|
|
| Variable Condenser, Evans CV-1010 [In standard glass case without vernier] |
1920 |
Radio part |
|
|
|
|
|
|
| Variable Condenser, Fabyan CV-1013 [In standard glass case with vernier] |
1920 |
Radio part |
|
6 |
 |
|
|
$ |
| Variable Condenser, Faraday CV-1020 [Shielded without vernier in aluminum case] |
1920 |
Radio part |
|
2 |
 |
|
|
|
| Variable Condenser, Fenton CV-1023 [Shielded with vernier in aluminum case] |
1920 |
Radio part |
|
|
|
|
|
|
| Variable Condenser, Finch CV-1030 [For oil without vernier in glass case] |
1920 |
Radio part |
|
|
|
|
|
|
| Variable Condenser, Fitzroy CV-1033 [For oil with vernier in glass case] |
1920 |
Radio part |
|
10 |
 |
|
|
|
| Variable Condenser, Fletcher CV-1500 [Unmounted without vernier] |
1920 |
Radio part |
|
|
|
|
|
|
| Variable Condenser, Flint CV-1503 [Unmounted with vernier] |
1920 |
Radio part |
|
|
|
|
|
|
| Variable Condenser, Floris CV-1510 [In standard glass case without vernier] |
1920 |
Radio part |
|
|
|
|
|
|
| Variable Condenser, Forbes CV-1513 [In standard glass case with vernier] |
1920 |
Radio part |
|
4 |
 |
|
|
$ |
| Variable Condenser, Foster CV-1520 [Shielded without vernier in aluminum case] |
1920 |
Radio part |
|
|
|
|
|
|
| Variable Condenser, Fox CV-1523 [Shielded with vernier in aluminum case] |
1920 |
Radio part |
|
2 |
 |
|
|
$ |
| Variable Condenser, Freneau CV-1530 [For oil without vernier in glass case] |
1920 |
Radio part |
|
|
|
|
|
|
| Variable Condenser, Frost CV-1533 [For oil with vernier in glass case] |
1920 |
Radio part |
|
|
|
|
|
|
| Bridging or Loading Condenser CS-1502 (Genung) |
1920 ? |
Radio part |
|
7 |
 |
|
|
|
| Flexowave Tuner T-300 |
1920 ? |
mod-pre26 |
|
4 |
 |
|
|
|
| Variable Condenser, Edwards CV-1000 [Unmounted without vernier] |
1920 ? |
Radio part |
|
1 |
 |
|
|
|
| Commercial Receiver RS-501 |
1920/21 |
Radio |
2 - UV200 |
|
|
|
|
|
| Radiophone Oscillion Transmitter Type OT-10 |
1920/21 |
Amateur-T |
4 |
4 |
 |
|
|
|
| Combination Set No. MC-1 |
1921 |
mod-pre26 |
2 - UV200 |
1 |
 |
|
|
|
| Combination Set No. MC-2 |
1921 |
mod-pre26 |
3 - UV200 |
2 |
 |
|
|
|
| Combination Set No. MP-400 |
1921 |
Ampl/Mixer |
3 - UV200 |
|
|
|
1F |
|
| Combination Set No. MR-1 |
1921 |
Radio |
1 - UV200 |
1 |
 |
|
|
|
| Combination Set No. MR-2 |
1921 |
Radio |
2 - UV200 |
1 |
 |
|
|
|
| Combination Set No. MR-3 |
1921 |
Radio |
3 - UV200 |
1 |
 |
|
|
|
| Combination Set No. MS-1 |
1921 |
Amat TRX |
5 - UV200 |
1 |
 |
|
|
|
| Combination Set No. MS-2 |
1921 |
Amat TRX |
6 - UV200 |
1 |
 |
|
|
|
| Detector SP-1 |
1921 |
mod-pre26 |
1 - UV200 |
2 |
 |
|
|
|