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Tektronix AM503S

Dual Current Probe System

With A6302 Current Probes

Two AM503 Systems Complete with  A6302 Current Probes


The AM503 current probe amplifier allows display of current on any oscilloscope having 10 mV/div sensitivity, 50 ohm or 1 megohm input, and at least 100 MHz bandwidth.

  • 1 TM503A Power Supply
  • 2 AM503 Current Probe Amplifiers
  • 2 A6302 Current Probes
  • 2 Pomona BNC Interconnects

The AM503 has been fully tested in both AC & DC Signals.  The unit is in very good condition.  The pictures are the actual unit. The only items of note is a small chip on one of the knobs and one the small light bulbs is out in the display.  If the bulb is an item of concern, we will have our lab replace it before it is shipped.

Features and Specifications

  •  Allows for current display on any oscilloscope
  •  Maximum input current: 20A for 6302; 100A for 6303
  •  Bandwidth: >50 MHz 6302; >15 MHz 6303
  •  Rise time: <7 ns 6302; <23 ns 6303
  •  Deflection factor: 1 mA/div to 5 A/div for 6302; 20 mA/div to 50 A/div for 6303






As our many customers will attest, we will do our very best to resolve any customer problems.  But our official policy is: 

  • All items sold are guaranteed against D.O.A. only. 
  • All claims must be made within 3 days of receipt. 
  • All warranties are void if the calibration / warranty seals are broken.



Shipping Policy

Buyer will pay $30.00 packing and shipping in the continental United States.  We will make every effort to ship within 24 hours of receipt of payment.  We ship with FedEx only.  We will be glad to ship with other carriers using the purchasers shipping account.  Please contact us to make any special shipping arrangements. For shipping rate research, our shipping address is Boulder, CO USA ---- Zip Code is 80305.

Foreign buyers:  Unless special provisions have been made, you are responsible for making your own shipping arrangements and all costs related to customs, duties & special packaging requirements.  Please do not ask us to quote you international shipping rates.  Use the address information above to research you own shipping rates.  You can email waltwhite@ascentconcepts.com to get the packaging fee, package weight and size for your research.  Items sold outside the USA are sold as is.  



 Payment Policy

We accept Credit Card payment through Paypal.   We accept Cashiers Check or Money Orders.



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The equipment shown is a representation only.  We often have multiple units in stock so please email us with your needs.  We have a large inventory and can usually find any test and measurement item in a short time frame.------Inquires info@ascentconcept.com