• Country
• United States of America (USA)

• Manufacturer / Brand
• Gertsch Products Inc.; Los Angeles (CA)

• Year
• 1961 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 97665

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 8

• Valves / Tubes
• 6BH6 6AK6 6BH6 6BH6 6BJ6 6BH6 12AT7 6X5GT 0D3

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Line / Batteries (any type) / 115; 230 / 3×45 & 3×6 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: VHF Frequency Meter FM-3 - Gertsch Products Inc.; Los

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 270 x 350 x 260 mm / 10.6 x 13.8 x 10.2 inch

• Notes

• The Gertsch FM-3 has a frequeny range 20-1000 MHz. It can also be used below 20 MHz as a mesuring device only by mesuring a harmonic of the unknow signal and dividing by the proper factor.

  In 1963, Gerstch advertised (QST February 1963 page 129) a factory conversion of the FM-3 to the FM-3A to meet FCC requirements. The conversion included a new cabinet, added amplifier and speaker, and the addition of the Gertsch DM-3 Deviation Meter.

• Net weight (2.2 lb = 1 kg)
• 9.8 kg / 21 lb 9.4 oz (21.586 lb)

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Alexander Küffer. See "Data change" for further contributors.

• Other Models

• Here you find 6 models, 6 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gertsch Products Inc.; Los Angeles (CA)