The Old Timer's Bulletin (OTB)
Periodical Volume 34Number 3August 1993
created by: Robert Rydzewski (11.Feb.14)
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- Innovative Mechanical Television
AuthorYanczer
- Info Items
- Diagram or Drawing
- Photograph
- Article
- A Mirror Drum
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created by
Robert Rydzewski
- A Vibratory Scanner
- Info Items
- Diagram or Drawing
- Mirror Screw for 90 Lines
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Robert Rydzewski
- 180-Line Mirror-Screw
- 120-Line Mihaly-Traub Scanner
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Robert Rydzewski
- Improved Mihaly-Traub Scanner
- Info Items
- Diagram or Drawing
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created by
Robert Rydzewski
- Scophony "Junior" theater Projector
- Scophony 22" TV Receiver and its Optical Chassis
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Robert Rydzewski
- Some Soviet & East German Military Radios
AuthorMeulstee
- Info Items
- Photograph
- Article
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Robert Rydzewski
- R104M HF Transceiver
- R326 Receiver
- R105M VHF Transceiver
- EKB Receiver
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Robert Rydzewski
- HF Receiver R311
- HF SSB Transceiver SEG 15D
- R-107T VHF Transceiver
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Robert Rydzewski
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Robert Rydzewski
- A Swiss Collection
AuthorKruger
- Info Items
- Photograph
- Article
- Replica de Forest RJ-4 Audion Detector
- National HRO Senior, from 1939; HRO-5A1, from 1946, with Speakers
- 1948 National HRO-7; 1952 National HRO-50-1
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Robert Rydzewski
- Restored Gem from Canada - CGE's JK53
AuthorHaworth
- Info Items
- Photograph
- Article
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Robert Rydzewski
- Collecting Crystal Sets in Austria
AuthorMacho
- Info Items
- Photograph
- Article
- Crystal Detectors, Containers
Detail / Comment"Rex", "Rotor", "WISI"…
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Robert Rydzewski
- Martian Big 4, Monarch, Carron, Philmore, Miller, Heathkit Crystal Sets
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Robert Rydzewski
- Radio Collecting in Israel
AuthorMackiewicz
- Info Items
- Photograph
- Article
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Robert Rydzewski
- Jeffree Cell with Lenses
- Westinghouse RA, DA, 10D Horn, RFL RF Amplifier & Model 5 Ballantine Variometer
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Robert Rydzewski
- A Rundradiomottagningsapparat
AuthorLeggatt
Detail / CommentFinnish 1920s set
- Info Items
- Photograph
- Article
- Schematic (partial)
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Robert Rydzewski
- Canadian Marconi "C" Set
AuthorHart
Detail / CommentMWTC "C" Battery Set
- Info Items
- Diagram or Drawing
- Photograph
- Article
- Schematic
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Robert Rydzewski
- MWTC Power Amplifier P.A. 1 Schematic
- C Set Adapted for Low-Frequency Operation
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Robert Rydzewski
- Radio Receiver Noise - Reminiscences
AuthorHerold
- Info Items
- Article
- Table, Figure, or Graph
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Robert Rydzewski
- Eqpt Restoration: Fixing Loose Tube Bases, Troubleshooting 01As…
Editor / ReviewerSibley
- Info Items
- Diagram or Drawing
- Article
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Robert Rydzewski
- Vacuum Tube: De Forest PO Oscillion
AuthorCondonEditor / ReviewerDowd
- Info Items
- Photograph
- Article
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created by
Robert Rydzewski
- Communications Rcvr: Those National 6-Prong Plug-In Coils
AuthorFizette
- Info Items
- Diagram or Drawing
- Photograph
- Article
- Table, Figure, or Graph
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Robert Rydzewski
- National "30-40" Series Coil Calibration Curves
- Info Items
- Table, Figure, or Graph
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Robert Rydzewski
- Table of Winding Specs for Early National 6-Pin Coils
- Info Items
- Table, Figure, or Graph
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Robert Rydzewski
- Meet the Collectors: Arkay A12 Amplifier
AuthorSchrock
- Info Items
- Photograph
- Article
- Schematic
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created by
Robert Rydzewski
- Transistorland: Core Colllectibles, Royalty of Radios (Zenith Royal 500)…
Editor / ReviewerCohen
- Info Items
- Photograph
- Article
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Robert Rydzewski
- Key & Telegraph: Hammer Meets Anvil
Editor / ReviewerReinke
- Info Items
- Photograph
- Article
- Assembled Phillips Key
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created by
Robert Rydzewski
- Loudspeaker: The Stentorphone Co.
Editor / ReviewerPaul
- Info Items
- Ad
- Photograph
- Article
- Stentor Super-Speaker Ad & Photo
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Robert Rydzewski
- California Nightingale Super Stentor Speaker Ad
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Robert Rydzewski
- Building Small Radio Receivers
AuthorDameron
- Info Items
- Article
- Schematic
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Robert Rydzewski
- Mailbag: Arc Transmitters; TB SIG-5: Jammer Gibberish
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Robert Rydzewski
- Historic Television & Video Recorders
AuthorBennett-LevyEditor / ReviewerKelley
- Federal Telephone & Telegraph Co.
AuthorBabcockEditor / ReviewerSibley
- Fessenden and Early Radio Science
AuthorBelroseEditor / ReviewerKelley
- A First Class Job - Frank Murphy - Radio Pioneer
AuthorLongEditor / ReviewerSibley
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Robert Rydzewski
- Alexanderson: Pioneer in American Electrical Engineering
AuthorBrittainEditor / ReviewerKelley
- 1993 Catalog - Fair Radio Sales
- History of International Broadcasting
AuthorWoodEditor / ReviewerKelley
- Recent Obits: Fritz Gross; Oscar C. Hirsch; William Lodge;; Samule T. Mazza
- RO: Dagmar Reem; C. Trafton Robertson; William N. Udell
- Silent Keys: Edgar Burge; Alva Collins; Carleton Maylott (W2YE); James R. McCann
- SK: Roger Snelling; Lee Stanley (W2ECM); Tom Socci (W2RUK)
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Robert Rydzewski
- French Regenerative Set; Loewe OE 333 with 3NF Triple Triode; Isaria AK 1-Tuber
- Atwater Kent Model 5 Breadboard Receiver
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6566,6567,6568,6569,6570,6571,6572,6573,6574,6575,6576,6577,6578,6579,6580,6581,6582,6583,6584,6585,6586,6587,6588,6589,6590,6591,6592,6593,6594,6595,6596,6597,6598,6599,6600,6601,6602,6603,6604,6605,6606,6607,6608,6609,6610,6611,6612,6613,6614,6615,6616,6617,6618,6619,6620,6621,6622,6623,6624,6625,6626,6627
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