Tektronix 7S12 TDR Sampling Unit

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Tektronix Catalog CostLow BidHigh Bidaverage
$1200 w/o heads (1973)
$1750 w/o heads (1977)
$3100 w/o heads (1982)
$3780 w/o heads (1985)
$3715 w/o heads (1989)
65788280
$77.00 8/2/01 #1620971983 jtsele (no heads)
$460.00 8/8/01 #1622978837 lyntec (with S6 & S52 heads)
$282.00 8/26/00 #1629120997 shabbyshop (with S6 & S52 heads)
$103.51 8/26/01 #1629311868 fallen-idc (no plug-ins)
$330.00 8/30/01 #1630606447 ssinc1400 (w/S6 & S53)
no bids (asked $300) 10/8/01 #?? teoutlet
no bids (asked $280) 10/12/01 #1648198221 teoutlet
$200.00 10/15/01 #1649458006 teoutlet
$180.00 10/24/01 #1652458747 rrkotowski
$249.50 4/5/02 #1717888633 asset-manager (w/S6 & S52)
$565.50 4/16/02 #1721149485 asset-manager (w/ S6 & S52)
$61.76 4/23/02 #1723353293 ridgeeq (no heads)
$382.00 1/14/03 #3106103387 kb6lue@pacbell.net (w/S-6, S-52) (20 bids $10 start)
$66.00 9/7/04 #3837271282 .s.surplus (7 bids $25 start) (no heads - untested)
$184.50 4/23/05 #7508934683 threespaceaol (6 bids $99 start) (w/ s-4 and s-52 heads) (powered up - uncalibrated)
$57.56 (+$11 ship) 12/20/06 #200058957244 j-barkley (6 bids $9.99 start)
$167.50 (+$14 ship) 2/16/08 #200198977491 testeq (14 bids $10 start) (tested OK-w/S6, S52 heads)

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    Option 03 - Tape Dial Change to Meters instead of Feet

    Tektronix 7S12 TDR system. 7S12 TDR/Sampler has vertical scales calibrated in mp (reflection coefficient 0.001) and mV from 2 to 500 units/div in 8 steps.
    A tape dial of 4900 ft, 490 ft, 49 ft (air dielectric); 3200 ft, 320 ft, 32 ft (polyethylene dielectric); and 10, 1,and 0.1 s (time).
    The unit also provides time/division settings of 20 ps to 1 s in 1-2-5 sequence.