radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

The Old Timer's Bulletin (OTB)

Periodical   Volume 35Number 2May 1994

created by: Robert Rydzewski (11.Feb.14)
Page Content
created by
Robert Rydzewski
  • Painting by Lefler
  
created by
Robert Rydzewski
  • The Van Horne Tube Company
  • John S. Van Horne
  • Van Horne Tube Company Factory
  
created by
Robert Rydzewski
  • Table of Early Van Horne Tubes, Types & Characteristics
  • Van Horne Tubes at Railroad Depot, Circa 1930
  
10 
created by
Robert Rydzewski
  • Characteristic Curve for a Musselman Certified Van Horne Tube
  
11 
created by
Robert Rydzewski
  • Van Horne 5VAX & Thoria 5VT Tubes, Circa 1925
  • 1925 Van Horne 5VA; 1925 5VAX; 1926 "Cushion" 5VAX; 1926 UV201A
  • Van Horne Model 5-VCX Tube (Circa 1925), with Carton
  
12 
created by
Robert Rydzewski
  • Van Horne "Goldband" 224 and 227, ca. 1930
  • Radiotone & Van Horne 280s, ca. 1930
  
13 
created by
Robert Rydzewski
  • Time Series" of Van Horne Tube Boxes
  
15 
created by
Robert Rydzewski
  • Transistorland
  
16 
created by
Robert Rydzewski
  • Unknown Photo from 1913- Telegraph Office/Lab?
  
17 
created by
Robert Rydzewski
  • In the Telegraph Lab
  • The Postal Telegraph Company
  
18 
created by
Robert Rydzewski
  • Key & Telegraph: By Their Knurls Ye Shall Know Them
  • Various Binding Posts
  
19 
created by
Robert Rydzewski
  • AWA "Ace" Authors
  
20 
created by
Robert Rydzewski
  • The Vreeland Oscillator
  
21 
created by
Robert Rydzewski
  • Neon Tube Oscillator Schematic
  • More on the McMurdo Silver Communication Receiver
  
22 
created by
Robert Rydzewski
  • Vacuum Tube: More 201A Brands; Those 1200- & 1600-Series Special Tubes
  • Table of Sylvania 1200-Series Tubes
  
23 
created by
Robert Rydzewski
  • Table of RCA 1600-Series Tubes
  
24 
created by
Robert Rydzewski
  • Paper and Film Capacitors
  
27 
created by
Robert Rydzewski
  • Casting Replica MetalParts
  
29 
created by
Robert Rydzewski
  • Philco, 1958: An Era of Unique TV Designs
  
30 
created by
Robert Rydzewski
  • Phonograph Design Patents by Emil Harman
  
32 
created by
Robert Rydzewski
  • Designs for Distant Relatives of the Philco Predicta
  • Philco Slender Seventeener TV
  
33 
created by
Robert Rydzewski
  • Concept Drawing for Predicta 4240 TV
  • Philco New-Matic Remote Control
  
35 
created by
Robert Rydzewski
  • Philco Predicta G-4654, H-4730
  
36 
created by
Robert Rydzewski
  • Design Studies by Jonassen for Plastic Console TV and Set in Predicta Line
  
37 
created by
Robert Rydzewski
  • Philco Predicta H4242 TV
  • Philco H2010 Safari TV
  
38 
created by
Robert Rydzewski
  • Reception Set No. 8
  • SC-CD-412-44
  • Kingsley K-CR-11
  • Japanese HRO Receiver
  
39 
created by
Robert Rydzewski
  • Four Foreign HRO-Derivatives
  
40 
created by
Robert Rydzewski
  • Comm Receiver: K2DA Regenerative Receiver
  
41 
created by
Robert Rydzewski
  • Coil Table for K3DA
  
42 
created by
Robert Rydzewski
  • Calibration Curves for K3DA
  
44 
created by
Robert Rydzewski
  • A "Modernized" Philco Baby Grand
  
46 
created by
Robert Rydzewski
  • Loudspeaker: Remo Horn Speakers
  • Remo Trumpet Speaker with Adjustable Unit
  
47 
created by
Robert Rydzewski
  • Eqpt Restoration: Brass Cleaning; Repairing Noisy Volume Controls
  
48 
created by
Robert Rydzewski
  • Meet the Collectors: Heathkit SB-610 Modulation Scope
  
49 
created by
Robert Rydzewski
  • Phelps Telefone Receiver, Western Union
  • Medical Coil, with "Hammer Interrupter", Benjamin Pike Jr., NY
  • Closeup of Coherer in Telefunken Set No. 3626
  
50 
created by
Robert Rydzewski
  • Verbum Sapienti Sat Est: Word to the Wise
  
51 
created by
Robert Rydzewski
  • The Psychology of Collecting
  
53 
created by
Robert Rydzewski
  • Capricious & Inconsistent Results"
  
62 
created by
Robert Rydzewski
  • Museum News: Pavek Museum of Broadcasting
  
64 
created by
Robert Rydzewski
  • Philco Radio 1928-1942
  • Alan Douglas on Chapter 2 of Philco Radio 1928-1942
  
65 
created by
Robert Rydzewski
  • Early History of Radio: From Faraday to Marconi
  
66 
created by
Robert Rydzewski
  • Communications Receivers: The Vacuum Tube Era: 1932-1981
  • VAIC Valve
  
69 
created by
Robert Rydzewski
  • Recent Obits: Willet Brown; Winston Burdette; Creed Chorpening (W4TZ)
  • RO: James Dooley; Avery Fisher; Lenore Jensen (W6NAZ); Tom McMullen (W1SL)
  • RO: Robert G. Middleton; Carleton Morse; Helen O'Connell; Duncan Pirnie
  • Silent Keys: Charles J. Affelder (N3AYU); C. Wilson Norwood (W2IQQ)
  
70 
created by
Robert Rydzewski
  • WOR Radio Print of Don Ameche, Andrea Leeds, Al Jolson
  • WOR Radio Print of Weather Forecast, NYC, Oct. 26, 1939
  
71 
created by
Robert Rydzewski
  • RCA and Finch Fax Machines
  • RCA FAX-2A Recorder
  • Finch Facsimile System Recorder
  
72 
created by
Robert Rydzewski
  • Van Horne 227 Tube Box
  • Air Scout 245 Tube & Box
  

Attachments

Currently no attachments available.


  
rmXorg