• Country
• Great Britain (UK)

• Manufacturer / Brand
• Solartron Laboratory Instruments Ltd.; Surrey

• Year
• 1957 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 291641

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

• Number of Tubes
• 5

• Valves / Tubes
• Z77 Z77 N78 N78 5Z4G

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 200; 210; 220; 230; 240; 250 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Oscillator CO 546 - Solartron Laboratory

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 22 x 9.5 x 13 inch / 559 x 241 x 330 mm

• Notes

• Resistor Capacitor phase shift oscillator using a Wien network.

  Wavebands:  25 Hz to 500 kHz in 5 bands.  Each range 25-250.  x1, x10, x100, x1000, and x2000 multipliers.  Main scale has a slow-motion drive and a vernier.

  Calibration accuracy: +- 1.5%, or +- 1 Hz, whichever is greater.

  Output:

    direct: 10v. Source impedance: 10 ohm.  Max. power: 100mW.

    attenuated: 0-60 dB down on 100mW into 600 ohm.  A 600 ohm resistor may be switched in if necessary.

    75 ohm:  1v with source impedance of 700 ohm or 0.5v with source impedance of 75 ohm.

  Distortion:  <1%.

  Hum and noise:  < 0.1 % of max. output.

  Output meter:  rectifier type ac voltmeter.

• Author
• Model page created by David Jones. See "Data change" for further contributors.

• Other Models

• Here you find 32 models, 29 with images and 11 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Solartron Laboratory Instruments Ltd.; Surrey