Tektronics SC502 15MHz Oscilloscope w/ DC505A Universal Counter Timer, TM503 MF For Sale

Tektronics SC502 15MHz Oscilloscope w/ DC505A Universal Counter Timer, TM503 MF
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Tektronics SC502 15MHz Oscilloscope w/ DC505A Universal Counter Timer, TM503 MF:

Tektronics SC502 15MHz Oscilloscope w/ DC505A Universal Counter Timer, TM503 MF

The Tektronix SC502 is a 15 MHz dual-channel oscilloscope plug-in for the TM500 system.

Key Specifications

  • Bandwidth 15 MHz (10 MHz at 2 mV/div, 5 MHz at 1 mV/div)
  • Fastest calibrated sweep 0.2 µs/div
  • Vertical range 1 mV/div to 20 V/div (1-2-5 sequence)
  • Vertical inputs 1 MΩ
  • CRT T3350, 8x10 divisions, 0.64 cm each, 12 kV


The Tektronix DC505 is a 225 MHz counter/timer plug-in for the TM500 system.

Key Specifications

  • Frequency range 0 Hz (DC coupled) / 10 Hz (AC coupled) to 225 MHz
  • Sensitivity 50 mVRMS to 150 MHz, 100 mVRMS to 225 MHz (sine)
  • Resolution 7 digits
  • Gate time 0.01 s to 10 s in decade steps
  • Stability Standard: 1×10−5; Opt.1: 5×10−7 (0°C to +50°C, after 30 min warm-up)
  • Long-term drift Standard: 1×10−5 per month; Opt.1: 5×10−7 per month


  • Two input channels (BNC connectors)
  • Functions: Frequency, frequency ratio, period, interval, pulse width, events


The Tektronix TM503 is a three-bay mainframe for the TM500 system. All bays are low-power. It has a swivelling carrying handle.


  • Photos represent the exact item that will be shipped. Please refer to the photos.


Shipping Policies

  • We take great care in packaging every item to ensure safe & quality shipping.
  • We ship UPS/USPS/FedEx/DHL depending on your location and at our discretion.
  • Most shipments are sent out within 1-2 business day after payment is confirmed or cleared, unless stated otherwise in the listing.
  • Please make sure to provide the correct shipping address when placing your order, orders can only be shipped out to the confirmed shipping address provided by .
  • Packages are not shipped on Sunday. As transit time varies by carrier, we are unable to control delays caused by carriers.
  • Shipping time provided by is an estimation and is not guaranteed. It is also subject to change during peak periods.
  • Buyers are responsible for complying with all import and export obligations and for payment of all applicable duties and custom fees.
  • Orders shipping to Hawaii, Puerto Rico, Guam or Alaska may not select the Free Shipping option for this item, if free shipping is selected for one of these destinations, we reserve the right to cancel your order.

  • Items must be returned in the original manufacturer\'s packaging. We strongly recommend you keep your packaging for at least the first 30 days after purchase.
  • We offer a 30 day return policy on all items. (unless stated otherwise in the listing).
  • Video games must be returned unopened. If the item is defective, it can be returned within 15 days with a receipt and the original packaging.
  • Defective items may only be exchanged for the same title.
  • All returns must be in original condition and must include the original packaging and content intact.
  • Returns must be packed in proper packaging to avoid damage to the item or its original packaging.
  • For any return requests please contact us to receive a RMA number and return instructions.
  • 10% - 20%restocking fee may apply.
  • Please allow 3-5 business days after we receive your package to process your return.
  • Any returns that violate this return policy will not be accepted and will be sent back at the customer\'s expense.
  • The following electronics items must be returned within 15 days of receipt:

    • We take joy in helping you get the gear you want at the price you need.
    • Please don\'t hesitate to contact us with any questions or concerns.
    • You can contact us via of our photos are of the actual item you are purchasing.
    • We work hard to include a lot of pictures of each item. We do our best to describe the items and their conditions. Please see item photos for all the details.
    • All components are as shown in the photos, no additional parts will be shipped.

    Please note that some of the product descriptions are provided by manufacturers and may not represent the exact color, size or style of the actual item.

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