• Country
• United States of America (USA)

• Manufacturer / Brand
• Tech-Master Products Co.; Brooklyn (NY)

• Year
• 1956

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 123379

• Number of Tubes
• 3

• Valves / Tubes
• 12AX7 12AU7 6C4

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit. / 125 DC; 6.3 AC Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Economy Preamplifier Kit TM-17P - Tech-Master Products Co.;

• Shape
• Tablemodel, with any shape - general.

• Notes
• Audio preamplifier sold in kit form.

• Literature/Schematics (1)
• The Radio-Electronic Master Buying Guide, 1956

• Author
• Model page created by Emilio Ciardiello. See "Data change" for further contributors.

• Other Models

• Here you find 27 models, 23 with images and 12 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tech-Master Products Co.; Brooklyn (NY)