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Try posting on the Logic Analyzers forum on groups.io.

If you're looking for direction, you'll need two of them I'd be tempted to use a resistor and neon with a one KV diode in series with the neon.? The neon will limit the maximum voltage to about 100

Could you use a small (NE-2) neon bulb for this? I recall holding the lead of one and shuffling across a carpet. I got the bulb to flash. Steve H. yahoo.com@groups.io> wrote:

Very nice. How do you get such a smooth cut of the can? George KD6NEW

Yes indeed, Steve gets the prize. That's what it would be called if such a thing existed. Ed

Shopping Cart Model?? Steve Hendrix

Sorry, what's SCM? <edbreya@...> wrote:

The LEDs would protect each other from reverse breakdown. They should be stout enough to take the forward hit and flash. If not, you can put some C across them or R in series to soften things up

Still looking.

Anyone have any experience of the TLA622 logic analyser, trying to sort display issues on one I have aquired

<edbreya@...> wrote:

Hi everyone, I'm searching for some Tektronix 500 series plugins and wondered if anyone on here may have one for sale. They don't need to be working, but do need to be in good cosmetic condition and

This is probably familiar to most people who have ever tried to replace an old electrolytic capacitor. It is very easy to make an adapter, at no cost. It is enough to cut off the edge of the old

@Beros <radiobero.bb@...> added the photo album can electrolytic adapter ( /g/TekScopes/album?id=294954 )

I believe it's the stiffness, more than the mass, that's important, but the problem remains that the electroscope needs to be sensitive to extremely small forces. A galvanometer will tell you the

Mark, I checked those and one of them is well within tolerance. The other one is just at the high end of its tolerance. I may replace one or both of them but they should be okay for

Barry, These are a bleeder for the cathode circuit and partial divider for high voltage and focus circuit. I replaced mine with 1W 1% types and spaced them off the board. The 1W types I use are about

Without looking, that sounds like the typical "focus string" divider that probably includes the focus pot somewhere, to get the right operating voltage for the function, and it possibly does other

Hi All, I've a TM504 with 4 modules for sale. Also a Scopemobile Type 204. The TM504 tucks nicely into the 204. Both can be seen

In my latest 7704A, I noticed the chain of nine 300K resistors (R4261 - R4277 and, possibly, R4279) in the CRT circuit have drifted significantly high (~20%) making what should be a total of 2.7M