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    • General
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      • Suffix Letters in Philco Model Numbers
      • Three-Legged Capacitors in Postwar AM-FM Philcos
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      • Why Doesn’t My Philco Have a Back?
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      • Aligning Adapter for Mystery Control Philcos
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      • Cleaning Philco Tuning Dials
      • Coil Winding Machine Plans – Counter Added
      • Dial Cord Stringing Diagram, Models 14-17-18-43-71-91-118, others
      • Dial Drive Rebuilding – Models 16, 34, 44, 144
      • Dial Drive Rebuilding – Models 116, 640, 643, 645, 650, 651, 655, 660, 665
      • DIY push button labels
      • Focusing a Philco (newer style) shadowmeter
      • How to “isolate” AC line noise (hash) from your workbench
      • Loctal Socket Problems and their Cure
      • Neutralization of Philco Neutrodyne-Plus Receivers
      • Philco 45-2769 Aligning Adaptor – What is it?
      • Rebuilding the Automatic Tuning Flex Coupling, ’37 and ’38 models
      • Rebuilding Philco Pilot Lamps
      • Re-creating “Dogbone” Resistors
      • Replacing Speaker Wires Without Drilling Rivets
      • Re-Stuffing Caps in Metal Cans
      • Rewinding Philco Coils
      • Rubber-Covered Wiring, 1939-1942 Philcos
      • Shadow Meter Coil Rewind
      • Stuck tuning control, how to unstick???
      • Veneering Tutorial
  • Resources
    • Resources – Alphabetical
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    • Other Useful Websites
  • PhilcoRadio.com
    • Philco Phorum
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Menu
MENUMENU
  • Home
    • Contact Us
  • History
    • Introduction
    • 1: Lamps to Batteries
    • 2: Batteries and Socket-Powers to Radios
    • 3: Leadership in Radio
    • 4: Diversification and War
    • 5: Philco Service
    • 6: Other Philco Items
    • 7: Philco People
    • 8: The Later Years
    • 9: The End
    • Early Philco Products
    • The Century of Progress Radio
    • Early Philco Television Development
    • Other Philco Items
    • Philco Around the World
      • Philco in Australia
      • Philco in Canada
      • Philco in Other Parts of the World
      • Philco in the United Kingdom
      • The Tropics
        • 1939 Tropic Models
        • 1940 Tropic Models
        • 1941 Tropic Models
        • 1942 Tropic Models
        • 1946 Tropic Models
        • Later USA-built Tropics
        • Philco Tropic Models Built in the UK
    • Philco Cabinet Design & Production
    • Philco Service Organizations
    • Philco Test Equipment
    • Philco Auto Radios
    • Radiobars
    • Sources of Information
  • Models
    • Identification Guide
    • Age Guide
    • Value Guide
    • Set Indices
      • Automotive Set Index
      • Australia Set Index
      • Canada Set Index
      • United States Set Index
  • Documents
  • Service Info
    • Early Philco Schematics
    • Philco 1928-1936 Wiring Diagrams
    • Philco 1937-1938 Wiring Diagrams
    • Philco 1939 RMS Year Book
    • Philco 1940 RMS Year Book
    • Philco 1941 RMS Year Book
    • Philco 1942 RMS Year Book
    • Philco 1946-1947 Home Radio Year Book
    • Philco 1948-1949 Home Radio Year Book
    • Philco 1950 Home Radio Year Book
    • Philco 1951 Home Radio Year Book
    • Philco 1952 Home Radio Year Book
    • Philco 1953 Home Radio Year Book
    • Philco Service Bulletins
    • Philco Serviceman Newsletter
    • Philco UK Service Bulletins
    • Philco Canada Serviceman Newsletter
    • Complete Instructions for Adjusting All Philco Receivers – Vol. 1
    • Complete Instructions for Adjusting All Philco Receivers – Vol. 2
  • Parts
    • Parts Catalogs
    • Audio Transformers
    • Bakelite Block Condensers
    • Carbon Resistors
    • Chokes
    • Compensating Condensers
    • Electrolytic Condensers
    • Fuses
    • Lamps
    • Mica Condensers
    • Output Transformers
    • Paper Condensers
    • Speaker Field Coils
    • Speakers
    • Switches
    • Tone Controls
    • Volume Controls
    • Wire-Wound Resistors
  • Shop Talk
    • Model Notes
      • Correct Intermediate Frequencies for Model 90
      • Error in Model 90 Service Info (1-47)
      • Error in Philco Model 38-690 Tweeter Wiring
      • Evolution of Philco Model 19
      • Evolution of Philco Model 60
      • Evolution of Philco Model 89
      • Extra Coil in Model 19TX Front End
      • Notes on Model 116
      • Notes on Model 21
      • Phonograph Jack in Model 511 Series Philcos
      • Speaker Hookup, Models 14LZX-19LZX-19TX-91RX
      • Speaker Replacement, Model 511 Series
      • The Speaker Problem in early Philco Cathedrals (20-21-70-90)
      • Tuning Condenser Wiring Trouble – Models 20-21-70-90
      • Unusual “No Reception” Problem in Model 90
    • General
      • Bakelite Block Condenser Data
      • Early 30s Philco Wiring Color Codes
      • How to Decipher Philco Resistor Part Numbers
      • Philco Models With Photofinish
      • Should I Plug It In and Turn It On?
      • Suffix Letters in Philco Model Numbers
      • Three-Legged Capacitors in Postwar AM-FM Philcos
      • Tips on Audio Interstage Transformers
      • Why Doesn’t My Philco Have a Back?
    • Syl’s Restoration Topics
      • $1 Fix for Torn Speaker Cones
      • Crystal Cartridge Rebuilding
      • Horseshoe Pickup Rebuilding
      • Restuffing Can Caps
    • Techniques
      • A Fix for Warped Mystery Control Dials
      • Aligning Adapter for Mystery Control Philcos
      • Bakelite Capacitor Rebuild Without Desoldering
      • Band Switch Repair
      • Callsigns for Philco 41-295 Pushbuttons
      • Cleaning Philco Tuning Dials
      • Coil Winding Machine Plans – Counter Added
      • Dial Cord Stringing Diagram, Models 14-17-18-43-71-91-118, others
      • Dial Drive Rebuilding – Models 16, 34, 44, 144
      • Dial Drive Rebuilding – Models 116, 640, 643, 645, 650, 651, 655, 660, 665
      • DIY push button labels
      • Focusing a Philco (newer style) shadowmeter
      • How to “isolate” AC line noise (hash) from your workbench
      • Loctal Socket Problems and their Cure
      • Neutralization of Philco Neutrodyne-Plus Receivers
      • Philco 45-2769 Aligning Adaptor – What is it?
      • Rebuilding the Automatic Tuning Flex Coupling, ’37 and ’38 models
      • Rebuilding Philco Pilot Lamps
      • Re-creating “Dogbone” Resistors
      • Replacing Speaker Wires Without Drilling Rivets
      • Re-Stuffing Caps in Metal Cans
      • Rewinding Philco Coils
      • Rubber-Covered Wiring, 1939-1942 Philcos
      • Shadow Meter Coil Rewind
      • Stuck tuning control, how to unstick???
      • Veneering Tutorial
  • Resources
    • Resources – Alphabetical
    • Resources – Categorized
    • Other Useful Websites
  • PhilcoRadio.com
    • Philco Phorum
    • Philco Gallery
  • Home
  • /
  • /
  • Philco Mystery Control Demonstration

Philco Documents

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  • Philco Mystery Control Demonstration

Philco Mystery Control Demonstration

Miss Loraine Harris uses Philco Mystery Control, 1938.
From the Ron Ramirez Collection
scanned by Bob Coraor(klondike98)

Download PDF (513.8 KB)
RR0464 Philco Mystery Control Demonstration

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© 1997-, Philco Radio Historical Society. All rights reserved. Unauthorized duplication prohibited. No part of this website, including text and/or pictures, may be used in any form without express written permission of the site owner.
The views expressed herein regarding the former Philco Corporation are the opinions of the Philco Radio Historical Society. The Society shall not be held liable for their accuracy, nor shall they be held responsible for any damages caused to others by the expression of these opinions.
"PHILCO" is a registered trademark of Philips Electronics North America Corporation.

Site Updated!

Posted: July 16, 2023

Manuals for several pieces of Philco test equipment added thanks to Dale H. Cook!

  • Philco Model 7070 R-F Signal Generator Manual (1947)
  • Philco Model 7001 Electronic Circuit Master Manual (1947)
  • Philco Model 7019 Junior Scope Manual (1946)
  • Philco Model 7030 Dynamic Tester Manual (1946)
  • Philco Radio Test Equipment Manual (1944)
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