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USA: Radio Catalog for the radio manufacturer DeForest Radio Telephone & Telegraph Co. (De Forest); New York

Choose the only.

Model	Year	Category	Tubes	Pictures			Forum	Coll.Pr.
Detector and One Stage Amplifier SP-3	1921	mod-pre26	2 - UV200	8				$
Detector and One Stage Amplifier Type P-300	1920	mod-pre26	2 - VT-Class-I	11				$
Detector and Two Stage Amplifier SP-4	1921	mod-pre26	3 - UV200	21				$
Detector and Two-Stage Audio Amplifier MC-2 (MC2)	1922	mod-pre26
Detector Panel RJ9	1916	mod-pre26	1 - Audion_dbw	15
Differentially Balanced Double Multi-wave Tuner Type T-100	1920	mod-pre26		3				$
Electrolytic Anti-Coherer [DeForest-Smythe]	1899–01 ?	mod-pre26		2
Flexowave Tuner T-300	1920 ?	mod-pre26		4
Interpanel Tuner MT-200	1921	mod-pre26		5				$
Loading Inductance Type RJ11	1917	mod-pre26		12
Loose Coupler Type E	1909	mod-pre26		5
Radio-Craft SW	1920	mod-pre26		1				$
Radio Receiver Long Wave Type	1918 ??	mod-pre26		12
Radio Tel & Tel RJ-4 [3 Point Tap Switch]	1913	mod-pre26	1 - AUDION_DeForest	20				$
R-J Tuner Loose Coupler	1909	mod-pre26		2
R-J Variometer	1909	mod-pre26		13
R.J.4 (RJ4)	1914	mod-pre26	1 - Audion_dbw	28				$
Syntonizer (Syntoniser)	1904–08	mod-pre26		4
Tuner Type T-200	1920	mod-pre26		15				$
Ultraudion Detector UJ 1	1916	mod-pre26	1 - T_deForest	16
Undamped Wave Oscillator	1915 ??	mod-pre26	1 - Ultraudion	1
Variable Condenser Type V.C. 3.5	1911–16 ??	mod-pre26		4
Variable Condenser Type VC4	1917	mod-pre26		7				$
AmplifyingTransformer type A 400	1922 ?	Radio part		4				$
Bridging or Loading Condenser CS-1502 (Genung)	1920 ?	Radio part		7
Bridging or Loading Condenser CS-3002 (Glen)	1920	Radio part		9				$
Coupler for Honeycomb coils LC-100 (Dalton)	1919	Radio part		2		2S	2F	$
Crystal Detector	1921 ??	Radio part		5				$
D-101b DeForest Crystal Detector , Horizontal Orientation	1924 ?	Radio part		4				$
D-101 Crystal Detector	1919	Radio part		3				$
Enclosed Galena Detector Type D-101 b	1921	Radio part		9
F-500 Rheostat	1922/23	Radio part		1
Loud Speaker Horn LS-100	1921	Radio part		6				$
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				$
Mounted Triple Coil Mounting LC-400 (Pampoule)	1921	Radio part						$
Plug in coils	1919	Radio part		5				$
Variable Condenser CV-1003 (Elliot) [Unmounted with vernier]	1920	Radio part
Variable Condenser, Edwards CV-1000 [Unmounted without vernier]	1920 ?	Radio part		1
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
90° Variable Air Condenser CV-500	1919 ?	Radio part		1
Bulletin C 14	1914	Paper		4
De Forest Catalog E "Interpanel" Sets	1921 ?	Paper		12
Radio Receiving Set Type BC-14 A (SCR-54A)	1918	Mil Re		18		1S		$
Unit Receiver 9 Panels	1919 ?	teaching		1				$

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