Tektronix 1A5 50 MHz Differential Comparator Amplifier (1969)

Back to Tek Vintage Summary Page

BAMA Free 1A5 Manual and Schematic Download Site

Tek Catalog CostLow BidHigh Bidaverage
$575 (1969)
$750 (1973)
$825 (1974)
...
$36.00 2/12/03 #3310507598 quecan (untested - 4 bids-$25 start)
no bids (asked $50) 4/20/05 #7508220212 patrick-j
$75.50 1/25/06 #7582134251 larrychristopher (4 bids $25 start) (partly non-working)
$15.50 (+~$8 ship) 5/17/06 #7618913042 guttpro (6 bids $5 start) (untested)
$29.99 (+$22.50 ship) 1/13/08 #230210386294 keytronix (1 bid) (w/manual - "is working and has been tested")
$14.99 (+~$13 ship) 8/21/08 #360079625834 sunnking (2 bids $14.99 start) (untested-has all tubes)

  • DC to 50 MHz bandwidth
  • FET Inputs
  • 1 mV/cd to 20 V/cm Calibrated Deflection Factor
  • .

    The 1973 catalog describes using 2 P6055 probes with a 1A5

    Use with P6046 DC-45MHz Differential Probe

    This wide-band differential unit for Type 530, 540 and 550 Series Oscilloscopes achieves a new high in common-mode rejection.
    Solid state design, with FET inputs, provides low drift and eliminates microphonics.