I meant "HSM" not "HSB" -- Jeff Dutky

Jim, Thanks for the reply. I was going to replace the battery anyway, as it's about the only thing that I can do to address any immediate deficits with the instrument, but fingers crossed that it

Hi, Jeff. That 3001GPX appears (from TekWiki) to be a more portable version of the Prism (or is it Prison?!) system logic analyzer/DSO that I used at a former employer back in the late 1990's. In

Several of updates: 1) I verified that the hard drive option (Opt. 1M) is actually installed (which I already suspected from the "Opt. 1M" tag on the back, along with a tag indicating that the hard

did you find anything on CM360?

Congratulations, Max, that's the reward of not giving in! Lots of information for many of us during your quest, thanks for that. Normally, I'd expect to notice if a trimmer works but its range of

Looks like you did a good job!

It seems that I have found the culprit. Another 7A16A arrived today. It had marked overshoots and oscillations which were not recoverable with trimming. I have located C756 open. Changed it, the

Hi all, Picked up a Tek 7313 from a local lad via Facebook. He didn't actually know what it was but thought it looked cool, bless him. Anyway, it does power up, however hums quite loudly and doesn't

Dear all, I decide to use a gold plated finger contact from a PCB "donor" and solder it on the top of the arched contact. The contacts were pulled off after baking the pcb in a oven to

I just acquired a Tek 3001GPX with all the goodies (keyboard, three P6490 acquisition probes, and 2 extra probe lead assemblies for the P6490s). It powers on, passes all it's self tests, says that it

Hi all I have a loose 604 crt so I thought I'd ask on the offchance that someone has a 604 parts unit - hopefully lacking little more than the crt, but ideally including the power transformer and

I noticed another thing while measuring the signals using the plugin's BNC as input. During the tests R10 broke down at the BNC. To not waste time, I directly connected the BNC pin to the actuator

Hi, Ozan, Just finished another trip with the 7A16A. Here are the responses to your answers and observations. 1) C190 was discontinued starting from serial numbers B079999-up. Mine has S/N B138015.

The following photos have been uploaded to the 7A16A step response (with 7854) ( https://groups.io/g/TekScopes/album?id=262075 ) album of the TekScopes@groups.io group. * pin14_U350_removed.jpg (

Barry, The Simpson 260 measurement is an old trick used for many years. When you change to lower settings on the meter you are dropping the resistance of the input. If the voltage stays the same

Just as an update related to the thread title: https://hackaday.io/project/163890/files

The metal can tabs on the electrolytic capacitors are used to complete parts of the power supply circuitry. If the replacement capacitors do not have the same tab configuration, the circuits will not

Barry bonjour As power electronics designer and manufacturing over the decades we have accumulated and used variacs in all sizes and types. Any mains powered device with a metal housing must have a 3

The stray capacitance between the winding and the frame and core is passing current and acting as a voltage divider. This is common with transformers and motors. I have a few military surplus power