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I snapped the pull tab on my 7D20. The knob is intact, but the plastic to which it attaches, isn’t. Anybody parting out a 7D20 and willing to sell the plastic tab?

Hi, No, I don't think so. All 3 drives i tested are TEAC FD-235HF, which should be the factory installed ones in the TekMate, and they are 1.44 as far as I can tell. The TekMate specification also

Are you using 1.44MB disks in 720kB drives? Dave Casey wrote:

Hi, Now here is an interesting problem. I have two 2402A Tekmates, for my 2440 and 1430a. I was using one of them with an USB floppy emulator, which works just fine. I have actually never used the

Walter Scott :-)

The ROM's on the A5 board contain everything they need to know about being a 2467B, 2465B, 2445B, or 2455B. The A5 controller's are interchangeably the same. You can take one out of any member of the

I took a look and that's what I see. The R364 on the divider board is a 1k resistor and the manual calls out a 100 ohm resistor. DaveD

ISTR that enabling 500 ps/div horizontal speed to a 2445B just takes adding a jumper near the edge of the main board, at one of the connectors. Sorry, don't remember exactly where and I have no doc.

Wherever possible, I try and pull the leads by leaving a length while clipping, heating and pulling the remaining length, for fear of a remaining piece of wire dropping off inside while soldering the

I’m trying to approximate the year that my 555 was made. Maybe there’s some way other than just looking at the date codes on components? What I know is the serial number is 601 and the center

All, I found and ordered a 155-0239-02 at Qservice in Greece, so it should be in Spain and OK by the end of the week. Un saludo, Leo

About a repository... that's a good question for the group. Each of the legacy "hallmark" test equipment manufacturers has gone through a lot of change and transformation.

Gary Curious ..... what is the motivation in this day and age for Tektronix to keep a repository of 30+ year old applications notes? -DC manuals@... -- Dave Manuals@...

Thank you Ronald. I hope you can find them. Hard to believe they are not readily available through Tektronix. Why can't Tektronix maintain a repository? Gary

WOW did I miss the mark. First I thought I was replying to the HP group. Second I see where my website suggestion seems to have disappeared in a huge string of “stuff’. So, regardless if your

Greetings, I am only catching part of this conversation but allow me to suggest: www.archieve.org<http://www.archieve.org> Applying the search term "Hewlett Packard" brings up an enormous amount of

Gary, About 6-7 years ago I found these application notes, or most of them, online. Some are definitive tutorials and give procedures directly applicable to the J16 and its many probes. Pg 7 of the

From easy to difficult: Almost all timebase calibration can be done with a 10 MHz function or signal generator and frequency counter. The fastest sweeps with magnification require a 100 MHz or faster

The back of the board connects to the vertical CRT deflection pins. The little collet sockets pull straight off of the pins but you still have to be very carefu

Two timebases can indeed generate a raster in these mainframes. A raster is also useful for verifying the condition of the CRT phosphor. A 7B53A can also be used as a calibrated vertical amplifier in