VINTAGE TEKTRONIX 422 PORTABLE ANALOG DUAL CHANNEL OSCILLOSCOPE

Description

I AM SELLING A VINTAGE TEKTRONIX 422 PORTABLE ANALOG DUAL CHANNEL OSCILLOSCOPE, WHEN TESTING, I PUT IN MY OWN POWER PLUG WHICH WILL NOT BE INCLUDED, AND PULLED OUT THE POWER SWITCH, ALL THE SMALL LITTLE LIGHTS ON THE CONTROL CONSOLE ILLUMINATED,
WHEN I WAS TESTING ALL THE DIAL CONTROLS, WHEN I ADJUSTED THE TIME/DIV DIAL LOCATED TOWARDS THE UPPER RIGHT HAND CORNER OF THE CONTROL PANEL, AND SET THE BLACK DIAL AT THE 6 O CLOCK SETTING OF EXT HORIZ, THE ENTIRE DISPLAY ILLUMINATED WITH A LITE GREEN ILLUMINATION, ALSO ON THAT SAME SETTING, WHEN I TOOK A SMALL WIRE AND PUT ONE END IN THE LOWER LEFT HAND CORNER INPUT 1 AND TOOK THE OTHER END AND PUT IT IN THE 2 VOLT PROBE CALIBRATOR JUST TO THE RIGHT OF IT A MAJORITY OF THE SCREEN WOULD DARKEN OUT.  THE LAST THING TO MENTION IS THAT WHEN I VERY QUICKLY TURNED THAT VERY SAME TIME/DIV BLACK KNOB RAPIDLY BACK AND FORTH ON VERY RARE OCCASIONS A COULD ACHIEVE A VERY DISTINCT LIGHT PATTERN THAT APPEARED FROM THE ENTIRE LEFT TO RIGHT OF A DARK DISPLAY SCREEN, BUT ONCE AGAIN, THIS ONLY SEEMS TO HAPPEN ON RARE OCCASIONS AND IS HARD TO DUPLICATED.  THIS IS JUST A GUESS ON MY PART, AND IS NO GUARANTEE, IN WHICH I DID WHAT I COULD TO THE BEST OF MY ABILITY TO TEST THIS ITEM, AND I WILL LEAVE IT UP TO THOSE WHO ARE MUCH MORE EXPERIENCED USING OR SERVING THIS DEVICE TO MAKE THE DECISION FOR YOURSELF, IT JUST MIGHT BE THAT THE CONTACTS ON THE DIAL MAY NEED SOME CLEANING WITH SOME CONTACT CLEANER SPRAY TO MAKE IT FULLY OPERATIONAL, BUT ONCE AGAIN, THIS IS JUST AN OPINION, AND IS NOT ANY FORM OF GUARANTEE, I AM STRICTLY SELLING THIS ITEM AS IS CONDITION, IN WHICH YOU WILL ONLY BE RECEIVING WHAT IS SHOWN IN THE PICTURES.  IF YOU HAVE ANY QUESTIONS I CAN HELP YOU WITH BEFORE YOU WOULD BE PURCHASING THIS ITEM, DO NOT HESITATE TO ASK, THANK YOU
IT IS WORTH NOTING THIS ITEM
WAS ACQUIRED FROM A INDIVIDUAL WHO MAINTAINED A VAST COLLECTION OF OLDER ELECTRONIC EQUIPMENT, PRIMARY RELATED TO RADIO.
PLEASE CALL ME FIRST AT 201 387 2502 BEFORE PURCHASE IF YOU WILL BE DOING LOCAL PICK UP THAT WILL BE MADE IN BERGENFIELD NEW JERSEY, THANK YOU
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