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He is wanting to replace stripped inserts in knobs, seems like a great application for easily tap-able jb weld. No concern about viscosity in that application. I'm not sure Micromark's bismuth/tin

Hello John, I'm glad you made progress in so little time. On the tekwiki website, down there is a reference material section and a Tektronix semiconductor design catalog. Link is here:

An alternate approach would be to hand machine delrin rod on a drill press.

Warming the JB Weld will decrease the viscosity. I used to pot solid state modules for the side-winder AIM_9H using Hysol epoxy, it was done in a vacum chamber, no voids or bubbles allowed. wrote:

It's a multipage TIFF -- most system previewers (Windows, OS X) can page through it. Sorry, I should have warned about that :-) --Toby elsewhere and will study that.

Micromark has some low-temp casting materials <= 160 degrees F. (Metal) R.

Is the knob large enough to use a 6-32 set screw? If so make sure you use a correct numbered drill with the tap. 73, Blll, WA2DVU Cape Mah

JB weld works well for this. Mike kd5rjz

Just what I was looking for; many thanks.

But old hand at other electronics repair? Excellent - for the most part you don't need a whole lot'o'scope to diagnose another scope. The power supply ripple is typically measured under the 20MHz

Greetings, I'm trying to save a couple old plastic knobs that have stripped set screw threads, that don't have brass inserts. I remember reading someplace about a machinable potting material that is

If you feel like doing a lot of work, you can look up the part number and cross-reference it to find what else it is used in. Some Tek parts are common and some are made out of unatatium, hope I

A good start would be to have the controls thus: POWER Off INTEN Fully ccw FOCUS Midrange SCALE ILLUM As desired VERT MODE Ch 1 POSITION Midrange VOLTS/DIV 5V VAR VOLTS/DIV Calibrated detent AC-GND-DC

I have a feeling that it depends on whether or not it is in storage mode at startup. With storage mode turned off, IIRC, any storage scope ought to look "normal". In storage mode, then you'll get a

Thanks, but that link you provided only seems to point to an extremely high resolution scan of the front cover of the manual (69Mb's worth!) unless there's something I'm doing wrong! But no worries, I

Hi Bert No its not the Tunnel Diodes that are faulty its the Trigger driver JFET's have blown, in fact one of them was cracked which I was unable to see until I removed the Heatsink, so I hope someone

I'm really surprised that no one else has mentioned the infamous tunnel diode problem. This often shows up on a lot of the older Tek products and the are many, many previous discussions on this and

This scope is currently on eBay. If it is of any significance, the probes are permanently wired in, according to the description. Colin.

Hi! My tektronix 214,221 and 222 is now working with lithium batteries. /g/TekScopes/photo/66992/1?p=Name,,,20,1,0,0 /g/TekScopes/photo/66992/2?p=Name,,,20,1,0,0

Excellent point, Artekmedia. I'll know soon enough! -Stefan