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Richard Groshong, United States of America (USA) - Radio collection

Below you find a part of the radio collection Richard Groshong - including other related items. Pre-1920 Wireless artifacts and historical memorabilia. Leutz and Norden Hauck sets and literature. Plug-in coils shortwave sets and literature. Radio artifacts of historic note. Arctic, Antarctic, Space exploration radio gear.

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Part of the radio collection of Richard Groshong. These pictures have been uploaded to the corresponding models by Richard Groshong but this is not necessarily all of Richard Groshong's collection.

	USA:  Clapp-Eastham Co.; Cambridge, MA 1912 : Improved Ferron Detector		USA:  Marconi Wireless Telegraph Co. of ... 1912 : "Roadmap" Spark Key Type C
	I:  Marconi Italiana (Marconifono), Of... 1912 : Sidelever Spark Key		GB:  Marconi's Wireless Telegraph Co. L... 1912 : Sidelever Spark Key
	USA:  Stoelting Co.; Chicago, IL 1912 : Spark Transmitter No. 2683		USA:  Manhattan Electrical Supply Co. In... 1912 : Variable Condenser No. 457
	USA:  Manhattan Electrical Supply Co. In... 1912 ?: Detector No. 454 Late		USA:  Manhattan Electrical Supply Co. In... 1912 ??: Double Contact Tuning Coil 456
	CDN:  Canadian Marconi Co. Ltd. (CMC, Es... 1912 ??: Spark Key Type 705A		USA:  Manhattan Electrical Supply Co. In... 1912–14 : Fixed Receiving Condenser No. 474
	USA:  Manhattan Electrical Supply Co. In... 1912–14 : Potentiometer No. 475		USA:  Manhattan Electrical Supply Co. In... 1912–14 : Sending Helix No. 484
	USA:  Clapp-Eastham Co.; Cambridge, MA 1912–15 : Blitzen Crystal Receiver		USA:  Clapp-Eastham Co.; Cambridge, MA 1912–15 : Blitzen Rotary Variable Condenser 1912 version
	USA:  Electro Importing Co. (Eico); New ... 1912–16 : Electro-Lytic Bare-Point Detector		USA:  Clapp-Eastham Co.; Cambridge, MA 1912–17 : Blitzen Helix 1/4 KW
	USA:  Marconi Wireless Telegraph Co. of ... 1912–19 ??: Wireless Station Sign		USA:  Electro Importing Co. (Eico); New ... 1912–20 : Electro Adjustable High Tension Condenser No. 531 This is the 1-KW No. 531 condenser.
	USA:  Electro Importing Co. (Eico); New ... 1912–20 : Electro Rheostat-Regulator No. 5000		USA:  Manhattan Electrical Supply Co. In... 1912–22 : Standard Spark Gap No. 421
	USA:  DeForest Radio Telephone & Telegra... 1913 : Audion Detector RJ5		USA:  DeForest Radio Telephone & Telegra... 1913 : Radio Tel & Tel RJ-4 3 Point Tap Switch Note the 3-tap B-battery switch (left of Audion) and company name on namepl...
	GB:  MIM, Marconi International Marine;... 1913 ?: Marine Spark Key		USA:  Murdock, WM.J. Co.; Chelsea 1913 ?: Receiving Set 505
	USA:  Marconi Wireless Telegraph Co. of ... 1913 ??: Fleming Valve Receiver		USA:  Murdock, WM.J. Co.; Chelsea 1913 ??: Loading Inductance No.510
	USA:  Marconi Wireless Telegraph Co. of ... 1913 ??: 2-Jar Leyden Bank Condenser		D:  Telefunken Deutschland (TFK), (Ges... 1913 ??: 8-Jar Leyden Bank Condenser CL 10
	USA:  Electro Importing Co. (Eico); New ... 1913/14 : Electro Commercial Detector No. 9500		USA:  Electro Importing Co. (Eico); New ... 1913–18 : Electro Antenna Switch No. 8100
	USA:  Electro Importing Co. (Eico); New ... 1913–18 : Electro Commercial Oscillation Transformer No. 9600		USA:  Electro Importing Co. (Eico); New ... 1913–18 : Gernsback Electrolytic Interrupter No. 8000
	USA:  Murdock, WM.J. Co.; Chelsea 1914 : Antenna Switch		D:  Hochfrequenz-Maschinen AG für Drah... 1914 : Goldschmidt Tuckerton Receiver Plug-in detector is broken.
	USA:  DeForest Radio Telephone & Telegra... 1914 : R.J.4 (RJ4)		USA:  Murdock, WM.J. Co.; Chelsea 1914 : Rotary Variable Condenser No. 364
	USA:  Murdock, WM.J. Co.; Chelsea 1914 : Variable Condenser No. 365		USA:  Murdock, WM.J. Co.; Chelsea 1914 ?: Oscillation Transformer No. 422
	D:  Telefunken Deutschland (TFK), (Ges... 1914 ??: Großer Uhrwerkschleifer (clockwork slider) - Tikker Detector ED37		USA:  Wireless Specialty Apparatus Co.; ... 1914 ??: Perikon Silicon Detector Type 155-A
	USA:  Murdock, WM.J. Co.; Chelsea 1914 ??: Spark Transmitter Half KW		USA:  DeForest Radio Telephone & Telegra... 1914/15 : One Step Audiophone Amplifier (Audion) PJ-1
	USA:  Clapp-Eastham Co.; Cambridge, MA 1914–16 : Antenna Switch Dove Marble base This is the 1-KW Antenna Switch as shown in the 1910 Clapp Eastham catalog G.		USA:  Electro Importing Co. (Eico); New ... 1914–16 : Electro Commercial Spark Gap No. 9225
	USA:  National Electric Signaling Co. (N... 1914–16 ?: Cohen Longwave Receiver		USA:  Clapp-Eastham Co.; Cambridge, MA 1914–17 : Boston Wireless Key Italian Dove Marble base
	USA:  Electro Importing Co. (Eico); New ... 1914–18 : Electro 1/2 K.W. Transformer Coil No. 8050		USA:  Electro Importing Co. (Eico); New ... 1914–18 : Gernsback Rotary Variable Condenser No. 3500
	USA:  Electro Importing Co. (Eico); New ... 1914–18 ??: Electro Bull-Dog Spark Coil 1-Inch No. DGE1088		USA:  Electro Importing Co. (Eico); New ... 1914–20 : Electro Professional Loose Coupler 14000

Click numbers for additional pages of Richard Groshong's collection of radios and other collectibles if any.
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Our member Richard Groshong opened his/her collection of radios and other related items on 20.Jan.2016.
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