Thank you very much for the uploads of the tools. I've downloaded those but will be a few days before I'll get a chance to look at them. I have at least half a day of cleaning out in order to make

Waitasec: might have some on my frequency meter. #include "802701.h"

Back in the early 90's I had a PLP-II printer (kind of a cheap laser printer- it used an LED array instead of a laser), which printed great, but after two years the printing became erratic.  I don't

Anybody where I can source a couple of the flip down feet? Thanks! Marty KL7AM

There was a time that many industrial companies has repair and service depts or pools. They would repair anything. I have experience with Hughes and AT&T. These service depts went out of favor with

As it turns out, I have the Tektronix 2645A with serial number B010101. I picked it up at Surplus Gizmos for ~$150 and have probably spent that much more in caps, keeper battery and probes. Had

Hi all, There is some calibration data in the EEPROMs on the acquisition board, but also in the NVRAMs on the CPU board. I have been told that you should never swap acquisition boards between scopes

I have a design in pcb-rnd, which can maybe export to kicad, but pcb-rnd is a better FOSS ECAD tool for my style. No one has asked for the sources and one has asked for gerbers. Last time I bought a

First, you need to do research on which one the AudioPhools go bonkers over! Then search for the one they reject. I have actually seen technicians and customers try a dozen different brands and

Hi everyone, I debug by removing the top cover of my TM503 or the left, right, and top sides of my TM5003. That gives almost as good access as the pictured "naked" TM502. But my problem with an FG507

Hi Bob: Your excellent discovery that the TM502 power supply can be totally removed from the mainframe would haved save a lot of time years ago if I had only known about it. Many years ago I made a

That's a really good idea! Vince. -- K8ZW http://www.metalworkingfun.com http://www.hamradio.fun

Not having a board on hand I can not be sure of the LED dimensions, but the pinout is similar to the HDSP-7503 display from Broadcom. ed

You may be thinking of the board I made for the DC508 counter. It could be modified (new board) to fit the DC503A, but I would need an original board for the pattern as there are no dimensions in the

https://groups.io/g/TekScopes/album?id=239714 Photo of a "naked" TM502 as a service tool. -- Bob Haas

Steve, Here is the link to the discussion on using Java SW to copy your NVRAM data using the TDS784C internal floppy:

wrote: SPC stands for "Signal Path Compensation". This injects a calibration signal into the pre-amplifiers for each channel, and calibrates away any DC offset in the signal path

Steve, I don't know what you consider a low ball offer but I usually make brutally low offers on liquidator's equipment because usually it's so overpriced. I usually start at a max of 10%~20% of the

I've seen late TM503's (nomenclated TM503A) with a self-contained power supply but all the TM504's I've seen don't have a removable power supply assembly. A "naked" TM504, even a TM503 would be

can rotate it to get convenient access to the plug-in. It can be use with double-wide plug-ins such as the SC504. How about using a TM504? Does the cover come off those easily?