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Refurbished Oscilloscopes For Sale

The oscilloscopes I offer for sale from time to time on Ebay and this website are fully refurbished and calibrated. They are not sold as a cheap solution to a short term lack of a scope. They are offered to either the collector or an engineer who needs a good analogue oscilloscope with a reasonable life expectancy. Please note I do not undertake repairs to third party instruments.

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The Scope Doctor

Tektronix 465 Oscilloscope

The oscilloscopes I offer from time to time on Ebay or this website are fully refurbished and calibrated. They are not offered as a cheap solution to a short term lack of a scope. They are offered to either the collector or an engineer who needs a good analogue oscilloscope with a reasonable life expectancy. All were part of my extensive collection now being down-sized due to recent severe space restrictions.

My scopes are either rare, historically important or just very good, for example, a fully functional Bradley 200 (100Mhz dual trace), of which I have two of them, is rarer than a chocolate teapot despite being an excellent UK contender in the 1960's bandwidth race and then there is Tektronix's 465, 475 and 485 which probably are historically the finest analogue service oscilloscopes ever made.

The Japanese Iwatsu SS5711 represents one of the best multi-trace (8 trace) scopes available even to this day.

Some of my scopes are perhaps novelties like Tektronix's miniscule 211 but all are useable serious pieces of kit. All are offered with a service manual, either on CD or hardcopy and with power cable and probes.

Refurbished Oscilloscopes

The term refurbishment means that thorough chassis cleaning, where practical, is carried out including electrical components such as pots, switches etc and all broken cosmetic parts are either replaced or repaired when no parts are available. Where possible, exact paint matches are used for cases and other components.

The circuitry, again where possible, has been repaired using parts available at the time of the scopes manufacture but care has been taken not to use parts known for poor shelf life, such as electrolytic capacitors and low cost carbon composition resistors.

Tektronix 465 uncovered

Before offering any scope for sale it is 'soak' tested, generally by using it in the fixing of other equipment, for approximately a week before a final calibration test is done. This tends to bring to light any noisy switches or pots. or other quirks. No scope is offered for sale with a questionable CRT.

Having said that, I own over 70 oscilloscopes, all older than 20 years, a few near 60 years old and not one has had a faulty CRT, which say's something for the tube manufacturers!

All my scopes are regularly powered up and run for a minimum of a few hours a month to ensure components such as electrolytic capacitors are regularly re-formed, that's part of the enjoyment of my hobby. Geek! no, I'm not a geek but I have always had a passion for this, the most important part of electronic test equipment.