• Country
• Japan

• Manufacturer / Brand
• Yaesu-Musen Co. Ltd.; Tokyo

• Year
• 1965 ??

• Category
• Amateur Equipment (Other, but not Key)

• Radiomuseum.org ID
• 183703

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

• Number of Tubes
• 5

• Valves / Tubes
• 12BY7A 12BY7A 12AT7 6AL5 3RP1A

• Number of Transistors
• 11

• Semiconductors

• Main principle
• something special ? Please give information (notes)

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 100/110/117/200/220/234 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Monitorscope YO-100 - Yaesu-Musen Co. Ltd.; Tokyo

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 210 x 150 x 290 mm / 8.3 x 5.9 x 11.4 inch

• Notes
• The Yaesu YO-100 is a station monitor scope that will allow you to monitor and adjust your transmitter for the cleanest signal possible. The YO-100 is compatible with virtually all transmitters and transceivers. The cabinet and front panel design of the YO-100 matches that of the FT-101B/277B and FT-201 series of Yaesu equipment. The features include a wide range of inputs for monitoring many different modes, such as SSB, CW and Digital. A built-in 1500 Hz and 1900 Hz tone generators greatly adds to the versatility of this station accessory. This two-tone generator produces the proper audio signals to perform a "trapezoidal" pattern for testing the linearity of a transmitter or amplifier.
  The specifications are as follows, for the vertical trace the sensitivity is 200 mV P-P/cm and the frequency response is 10Hz to 60MHz. For the horizontal trace the sensitivity is 300 mV/cm, the frequency response is 10Hz to 16kHz and the sweep frequency is 10 Hz to 10 kHz. The two-tone generator frequency is 1500 Hz and 1900 Hz which is Independently selectable by front panel controls and has an output level of 50 mV.
  The YO-100 uses 5 tubes in it's circuit which are as follows, a 12BY7A as an Audio Frequency Amplifier, a 12BY7A as an I.F. Amplifier, a 12AT7 as a Clamp, a 3RP1A as the Cathode Ray Tube and a 6AL5 as a R.F. Detector.

• Net weight (2.2 lb = 1 kg)
• 6 kg / 13 lb 3.5 oz (13.216 lb)

• Source of data
• - - Data from my own collection

• Author
• Model page created by Marco Pogliani. See "Data change" for further contributors.

• Other Models

• Here you find 305 models, 289 with images and 139 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Yaesu-Musen Co. Ltd.; Tokyo