Tektronix DC509 135MHz Digital Counter

Orig CostLow BidHigh Bidaverage
$1700 (1982)
$2040 (1985)
37255133
$76.50 8/2/01 #1620871219 lyntec
$56.51 8/8/01 #1622920567 lyntec
$200.00 8/17/01 #1626033194 j.a.
$50.00 8/24/01 #1628461590 jds8
$88.00 9/13/01 #1635904417 lyntec
no bids (asked $125) 10/4/01 #1643601525 jshank
$124.38 10/11/01 #1646395652 jshank
$102.50 10/11/01 #1648039050 videojohn
*$99.00 11/15/01 #1659784783 lyntec
$100.00 4/21/02 #1724894117 88ford
$78.00 3/10/03 #2512532459 j.a. (tested-clean) (9 bids $10 start)
no buy ($31 < reserve) 3/22/03 #2516783014 wa8mcd (tested/guaranteed)
$81.00 5/9/05 #7512764815 testgearnation (10 bids $10 start) (checked-working)
$43.88 (+ship) 4/20/06 #7610028360 jtsele (10 bids $9.99 start) (working-guaranteed)
$32.88 (+ship) 5/16/06 #7618380875 jtsele (7 bids $9.99 start) (working-guaranteed)
$37.00 (+$14 ship) 7/3/08 #350074156111 tugtug01 (7 bids $0.98 start) (untested)
No Bids (asked $100 +$15 ship) 11/12/10 #360316901442 dotcomliquidations (untested)
$103.50 (+~$11 ship) 11/29/10 #370458297011 ridge_equipment (7 bids $39.99 start) (thoroughly tested-guaranteed)

  • 135MHz on both A & B channels
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    Compatible with P6101A probe (per 1985 catalog)

    Tektronix DC509 Universal Counter Timer
    General Description:
    135 MHz on both A and B channels with 10 ns single-shot resolution (5 ps resolution with avergaing).
    Period, width, time A-B, events B during A, totalize, ratio, time manual, and arming functions.
    Eight digit display, auto or selected averaging to 10E8 in all modes.
    Duty-cycle independent autotrigger, shaped A and B channel outputs, probe compensation.
    Powerful reciprocal frequency measurement allows up to eight digits of resolution of low frequency signals in one second or less measurement time.
    Requires one slot in TM-500 or TM-5000 series mainframe.
    Same as DC5009, but without the GPIB capability.
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    Uses a powerful reciprocal-frequency measurement technique to allow up to eight digits of resolution of low-frequency signals in one second or less of measurement time. Also has a high stability time base and
  • 135 Mhz Both A and B Channels
  • 10 Ns Single-Shot Resolution
  • 8-Digit Display
  • 5 ps Resolution, with Averaging
  • Reciprocal-Frequency Measurement
  • Auto or Selected Averaging
  • Duty-Cycle Independent Autotrigger
  • High Stability Oven Time Base
    The DC 509 single width Universal Counter/Timer provides all of the measurement functions of the higher performance DC 510 except rise time/fall time, null, and totalize A+/-B.

    The powerful recipricol frequency measurement technique allows up to 8 digits of resolution of low frequency signals in one second or less of measurement time. The DC 509 has the automatic averaging feature; selected averaging up to 10x8 events provides usable time ineterval resolution of 5 ps.

  • 135 MHz Both A and B Channels
  • 10 ns Single shot Resolution
  • 8 Digit Display
  • 5 ps Resolution, with Averaging
  • Recipricol Frequency Measurement; Period; Width; Time A to B; Events B During A; Totalize; Ratio; Time MAnual; Arming
  • Auto or Selected Averaging to 10x4 in All Modes
  • Duty-Cycle Independent Autotrigger
  • Shaped A and B Channel Outputs
  • Probe Compensation
  • High Stability Oven Time Base