1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

tektronix 2235a scope switch replacement

Blog entry posted in 'tekronix 2235a', Jun 6, 2015.

i bought a tektronix scope from ebay "not working use fro parts" I got for $50 dollars. When I got the only work on it was leds and no trace. I download the service manual and followed the flow chart. I started when no trace part. It told to press find the beam button and so I did. What luck it had a trace but when adjusted the position controls and still no no trace. The next step check all the voltages and i found that all voltages was correct and nothing. Finally the last thing a did was adjust crt bias and the trace finally appeared so I calibrated. i start calibrating every thing that needed calibrate. I notice when i used both channels one trigger and the other wont and I went the selector switch form lf/hf rej to normal the switch jammed up and broke. I need a replacement switch is a 4 position level slide switch. on the parts layout the part number is s392 I think .

I need a new switch does any no where I can get one or how fix the switch.

  1. KeepItSimpleStupid
    There are three places for Tek parts:
    Sphere in Canada, qservice in Greece and ask in the Yahoo Tekscopes group.
    KeepItSimpleStupid, Jun 9, 2015
  2. KeepItSimpleStupid
    KeepItSimpleStupid, Jul 4, 2015