• Country
• Guernsey

• Manufacturer / Brand
• Tektronix Guernsey Ltd. ; St.Peter Port

• Year
• 1978–1990 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 320690

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Delaying Time Base 7B15 - Tektronix Guernsey Ltd. ; St.

• Shape
• Chassis only or for «building in»

• Notes

• The Tektronix 7B15 is a 1 GHz delaying time base for 7000-series scopes, in particular, the 1 GHz 7104 (typically used with 7A29 vertical amplifiers and a 7B10 delayed time base).

  The 7B15 provides digital readout of delay and delta times. In effect, the 7B15/7B10 pair are speed-improved versions of the 7B85/7B80.

  Specifications

  Sweep	200 ms/Div to 2 ns/Div in 1-2-5 sequence, ×10 magnifier down to 200 ps/Div, variable to ×2.5
  Triggering	to 1 GHz
  Jitter	less than 30 ps at 1 GHz
  Features	Digital read-out of delay and delta times Variable Trigger Holdoff HF Sync mode

  Internals

  A ramp generator is started when the trigger signal arrives. The delayed sweep is started when a comparator detects that the ramp has reached a control voltage, set by the front panel knobs. The control voltage is therefore proportional to the amount of delay and is measured using a 155-0185-00 4-digit DVM circuit, then displayed on the oscilloscope readout. The display, scaled in seconds, provides the operator with a precise readout of the delay.

  Other custom Tek ICs used: 155-0150-00 trigger detector, 155-0160-00 trigger amplifier.

  The 7B15 uses the +50 V supply provided by the mainframe. 

• Price in first year of sale
• 6,851.00 CHF

• Mentioned in
• -- Original-techn. papers. (Product & Preislist 1987)

• Literature/Schematics (1)
• - - Manufacturers Literature (7B15 Operator's Instruction Manual First print Oct 1978, revised Oct 1983)

• Author
• Model page created by Detlef Boeder. See "Data change" for further contributors.

• Other Models

• Here you find 5 models, 5 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tektronix Guernsey Ltd. ; St.Peter Port