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USA: Catalogo radio del produttore DeForest Radio Telephone & Telegraph Co. (De Forest); New York

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Modelli	Anno	Categoria	Valvole	Immagini			Forum	Quotaz.
Detector and One Stage Amplifier SP-3	1921	mod-pre26	2 - UV200	8				$
Detector and Two Stage Amplifier SP-4	1921	mod-pre26	3 - UV200	21				$
Enclosed Galena Detector Type D-101 b	1921	Radio part		9
Interpanel	1921	Radio	3					$
Interpanel MS1 [(Incl Transmitter)]	1921	Radio	3
Interpanel Tuner MT-200	1921	mod-pre26		5				$
Loud Speaker Horn LS-100	1921	Radio part		6				$
"Midget" Radiophone Transmitter Type OT-3	1921	Amateur-T	3 - UV202	23
Mounted Triple Coil Mounting LC-400 (Pampoule)	1921	Radio part						$
Radiophone Transmitter OT-25	1921	Commercial Tr		2
Wavemeter SW-100	1921	Equipment		1
De Forest Catalog E "Interpanel" Sets	1921 ?	Paper		12
Interpanel amplifier MP400	1921 ?	Ampl/Mixer	2	2
Crystal Detector	1921 ??	Radio part		5				$
Audion Control Panel MP-100	1922	mod-pre26	1 - UV200	4				$
Detector and Two-Stage Audio Amplifier MC-2 (MC2)	1922	mod-pre26
Interpanel One Step Amplifier MP-200	1922	Ampl/Mixer	1 - UV201	1
MC1	1922	Radio						$
MR4	1922	Radio	1 - UV200	6
MR5	1922	Radio	2 - UV200	1
Radio-Craft Radiophone D-4 [Portable Model]	1922	Radio	1	10				$
Radio-Craft Radiophone D-4R [Tablemodel Panel Set]	1922	Radio	1	9			1F	$
Radio-Craft Radiophone D-5 [Portable Model]	1922	Ampl/Mixer	2	5				$
Radio-Craft Radiophone D-5R	1922	Ampl/Mixer	2	13				$
Radio-Craft Radiophone D6	1922	Radio	3	14				$
Radiohome DT-700	1922	Radio	1	18				$
Reflex Radiophone D7	1922	Radio	3 - DV6	11				$
SP-2 2-Stage Audio Amplifier	1922	Ampl/Mixer	2 - UV201	13
Two-Stage A. F. Amplifier MP-400 (MP400)	1922	Ampl/Mixer	2 - UV201	2
Two-Stage Amplifier Type DT-800	1922	Ampl/Mixer	2 - UV200	15				$
AmplifyingTransformer type A 400	1922 ?	Radio part		4				$
DT600 Crystal Receiver Everyman Radiophone	1922/23	Cristallo		25				$
Everyman	1922/23	Cristallo		5				$
F-500 Rheostat	1922/23	Radio part		1
Interpanel MR-6	1922/23	Radio	3 - UV200	36				$
D7A	1923	Radio	3 - DV6A	17		1S		$
D10	1923	Radio	4 - DV3	57		1S		$
Radiophone D4 [Box]	1923	Cristallo	3
LS-300	1923–26 ?	Parlante		10				$
D12 [169$]	1924	Radio	5 - UV201A	25				$
D12 [184$]	1924	Radio	5	6				$
Radiophone Model D14	1924	Radio	5 - UV201A	1				$
D-101b DeForest Crystal Detector , Horizontal Orientation	1924 ?	Radio part		4				$
D17A Radiophone	1925	Radio	5	6		1S		$
D17L	1925	Radio	5	12		1S		$
D17M	1925	Radio	5			1S
Loudspeaker LS-400	1925	Parlante		8				$
Radiophone F-5-AL [90$]	1925	Radio	5 - DV2	12		1S		$
Renaissance W6F	1925	Radio	6	6				$
W5F	1925	Radio	5	2				$
W6T	1925	Radio	6	12				$
Speaker	1925 ?	Parlante		2		1S
F-5-AW	1925/26	Radio	5	5				$
F-5-BW [85$]	1925/26	Radio	5	8		1S		$
F-5-L	1925/26	Radio	5 - DV2	13		1S		$
F-5-M	1925/26	Radio	5 - DV2	21		1S		$
F-5-P [Portable]	1925/26	Radio	5	3		1S		$
50	1926	Radio	2
CS-5	1930	Radio	4	9		1S		$
Short Wave CS5	1930	Radio	4
Cp	1931	Radio
M	1931	Radio
Dublette with ID=37102	9999/99	Radio	3	1

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