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Greetings all… I’m having an issue with the bank of mode select switches on my DM 501A. Only the resistance mode switch will latch, unless I keep some light pressure on the resistance mode switch

Hi Ronan: Yes... and there are a good number of very knowledgeable contributors, to TekScopes... who are quite generous with their knowledge and time. Mostly it's all about Tektronix scopes... but,

So, a *sort* of related question, can anybody recommend a “can’t go wrong” set of female BNC to female BBC patch cables as well as banana to banana patch cables? Cory Oace

If you're seeing this only for the sweep speed, but consistently for *all sweep speeds* *and for the cursors*, then possibly your horizontal gain has drifted. What's more likely happening is that your

Sure, first think I checked.

You're right, the dissipation factor means the power loss in the capacitor. The more power loss, the worse.

Hi all, I have an HP 4261A LCR-meter... apart from capacity, it displays dissipation factor. This can be converted to ESR by taking into account capacity and frequency. I just built a conversion

Hey Carsten, does the Mastech MS8911 measure ESR? I can't find that function mentioned on their website.

At the risk of making it any busier in there, it may be one of my favorite places in the whole world. Despite being a complete greenhorn when it comes to most of the equipment, sneaking out of my

--- To rule out the simplest case, is "VAR" knob of sec/div switch in the calibrated position? Ozan

Roy, Just checked and it works perfectly. And so this will be my first and last ESR post on TekScopes. Thanks for the help! George KD6NEW

Easy enough to ask them if they are using an FDM ( fused deposition modeling) printer, an SLA (Stereolithography) Printer or an SLS (Selective Laser Sintering) printer. If they are using SLA or SLS,

I wondered if the finish might be superior to what some of the local shops might be providing. For the price difference, it's probably in my best interest to go with Shapeways. Thanks, Barry - N4BUQ

This is that odd L-shaped scope probe that is hard-wired into the little low frequency 211 mini-scopes. Hakan confirmed it fits the 211 for sure below B080000, and it may also work in the 212 and 214,

Sorry Roy, my topic is not spam. I am relatively new in these forums just trying to get my 2712 fixed. Have a good one Ronan

Hi Glydek: Apologies ... must have missed the notification. (Your in now.) PM if problems. Great! Look'n forward to your PCB! -- Roy Thistle

The SLS system produces better prints by far, SLS delivers near molded quality parts. -- Michael Lynch Dardanelle, AR

Those Surplus Sales prices are not practical for hobbyists, especially down here in Australia. I will post the schematic of my hack later today. It has the advantage of not requiring any alteration to

My 2465B has been sitting on the shelf for a few months. I notice when I fired it up today that the horizontal sweep is slow, by that I mean that the calibrator square wave does not line up with the

Note that Shapeways uses an SLS process which produces parts with great strength and very good dimensional accuracy. This may or may not matter for your part(s) but the quality and strength and