Thursday, November 26, 2020

Tektronix scope repair

A service warranty is included with each repair. More than 1experienced technicians are ready to service your instruments worldwide. You’ve used our innovative, solution-based instruments, now let us introduce you to our premium level of service. The scope was listed as $10 but I was able to get it for $60.


I thought it might be fun to try to resurrect it.

If you want to go down this road here are some. Unless otherwise indicate all parts listed are removed from equipment (RFE), teste and are to be considered used. RFE) 200Ω Watt Linear Taper. Which also was replaced. Tektronix Potentiometer.


It looked physically intact and the pix showed that it at least made a dot when the beam-finder button was pushed. EEVblog 108views. I set about to win the auction, and did.

And yep, it was a bit dirty and pretty much dead. Mhz sine wave to the scope with the settings as described in the manual. F 250VAC caps after I had received the ordered new 275VAC caps. This post documents the fault and repair. Including: tektronix 1lspectrum analyzer instruction manual, tektronix 49x 275x spectrum analyzer service notes, tektronix 1linear ic test fixture instructions manual, tektronix 1calibration manual, tektronix 2maintenance manual, tektronix 2powersupplyboar tektronix 2service manual, tektronix 275xx.


Now thirty years later, anyone who wants to own a fine analog scope can get his hands on one. At a price of several hundred dollars, very few oscilloscopes (used or new, including modern DSOs) can match its 3MHz bandwidth and advanced triggering capabilities. We Have Almost Everything on eBay.


If fixing old test equipment is something that interests you then hang around the virtual campfire and listen to my story as it unfolds. Our restoration engineers are available to repair or restore your vintage product. We do not have the capabilities (or time) for a full NIST calibration but they will be restored to good working order. An oscilloscope informally known as a scope or DSO (for the more modern digital storage oscilloscope), is a type of electronic test instrument that allows observation of constantly varying signal voltages, usually as a two-dimensional graph of one or more electrical potential differences using the vertical or y-axis, plotted as a function of time (horizontal or x-axis). Recall that the problem was three fractured trunnion mount bosses which rendered the cart useless (and unsafe) under load.


They were certainly room heaters, but they worked. Are you able to share the circuit diagrams please? They are well made and reliable test equipment.

Our digital and analog oscilloscope calibration services include single channel, multi-channel, benchtop, and handhelds. We calibrate oscilloscopes with bandwidths up to 3. Oscilloscope repair services are available on select models. Our oscilloscope calibration procedure is certified to be traceable to NIST.


A full calibration followed and closed the repair. It was a cool little scope in its day and very expensive. When working, even the CRT, it should outlast any new Chinese scope , all the parts are very conservatively rated. Most the CRTs last almost forever.


When I apply power the Trigger led blink for a second and I can hear a beep, after that nothing happens. This scope has been in storage for many years and when things really. This is the Aboard containing the attenuators for Chand Ch and preamps for all channels.


I’m doing voltage and voltage ripple measurements, as per Service Manual. The components to look at are the tantalum caps, they are most often the first one to fail. The repairman would remove a jumper inside the instrument to enable the self calibration, and adjust horizonal, vertical, and trace pots to set the scope levels.

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