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History of the manufacturer  

Graymark Educational Products, Inc. Los Angeles, CA

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Name: Graymark Educational Products, Inc. Los Angeles, CA    (USA)  
Abbreviation: graymark
Products: Model types
Summary:

Graymark Educational Products, Inc.: in the 60's located in Los Angeles, CA, later a subsidiary of Buck Engineering Co. Inc. Products included tube and transistor radio kits, AM transmitter, test meter, light organ, etc.

History:

This manufacturer was suggested by Wolfgang Scheida.


Some models:
Country Year Name 1st Tube Notes
USA  72 Amcaster AM Transmitter 505   Student kit, AM band low power AM transmitter, crystal microphone, exchangeable coil, tele... 
USA  78 Handcrafted 536   Graymark 536 AM Radio; 
USA  70 510 12BE6  This very late AA5 (All-American-5) kit radio design features a plastic enclosed tuning ca... 
USA  60 511 All Band Radio educational kit 12AT7  Plug-in coils. 4 plug-in coils cover the MF and HF range of approximately 500 kHz to 30 MHz. 
USA  65 8 Transistor Radio 512    
USA  70 Solar Tone Sun Powered Radio 518    

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