Tektronix 2236 Switch contacts

embrown057 · 23rd November 2010, 01:21 AM

I ran this on the Yahoo Tech site but no answer. I have a 2236 that the switches on the CTM (counter/timer/multimeter) are not working corrctly due to lack of use. They need to be cleaned and also the time base. I have read that some contact cleaners will melt the plastic on these older switches. I was wondering if DeToxIt would work and which version would be best to use as they have a few versions of the chemical. There must be somthing best suited for this application.The service manual said to use water and then bake the time base switch in oven, then lube it with "No Noise" but the "No Noise" product is no where to be found. I would hate to go through the trouble of dismounting the switch and wash it with water just to find it still has an issue. Anyone that has a idea what would be the best to use that wound NOT melt the plastic or contaminate the boards.

stratus46 · 23rd November 2010, 03:38 AM

There is a fellow named Jim Yanik who frequents Google Groups SCI.ELECTRONICS.DESIGN and others. He's a former Tek Tech and is very knowledgeable. You might post a request there or SCI.ELECTRONICS.REPAIR

G²

23rd November 2010, 01:21 AM	#1
embrown057 diyAudio Member Join Date: May 2010 Location: Florida	Tektronix 2236 Switch contacts I ran this on the Yahoo Tech site but no answer. I have a 2236 that the switches on the CTM (counter/timer/multimeter) are not working corrctly due to lack of use. They need to be cleaned and also the time base. I have read that some contact cleaners will melt the plastic on these older switches. I was wondering if DeToxIt would work and which version would be best to use as they have a few versions of the chemical. There must be somthing best suited for this application.The service manual said to use water and then bake the time base switch in oven, then lube it with "No Noise" but the "No Noise" product is no where to be found. I would hate to go through the trouble of dismounting the switch and wash it with water just to find it still has an issue. Anyone that has a idea what would be the best to use that wound NOT melt the plastic or contaminate the boards.

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23rd November 2010, 03:38 AM	#2
stratus46 diyAudio Member Join Date: Nov 2009 Location: Los Angeles	There is a fellow named Jim Yanik who frequents Google Groups SCI.ELECTRONICS.DESIGN and others. He's a former Tek Tech and is very knowledgeable. You might post a request there or SCI.ELECTRONICS.REPAIR G²

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