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Either you need new glasses or the 7854 needs new labels ;=) 2nd row 5th button Albert

It's just above the blue "f" (function) button in that mass of buttons to the right of the CRT. Dave Casey Quoting Dave Daniel <kc0wjn@...>:

"Scope" button? I know I need to read the manual, but I don't see a button labeled "Scope" (or am I being too literal here?) :) DaveD PS - You may want to post your power supply question to the

Hi David, Your reasoning might be all right for the blow-by effect itself. What still remains is the effect of blow-by compensation. Not at high frequencies, but at frequencies in the bandpass (S-4:

John, I'm moving this to the TekScopes Yahoo group. In answer to your question, no, I have not done more than look briefly at the ops manual. That is why I wrote that I may not know how to make it

A little more investigation showed the blanking levels did not match the waveform diagrams; putting a meter on the +55 showed +66, so now it's on to the LV ps. Anyone have a schematic or link to a 422

You might want to poke around Jameco's site. -ls- HankC <hankc918@...> wrote:

Taylor, Your suggestion of the TI til302 is a good one. The dimensions & pinout match the ones in the DC504. The chips are only 1.4 inches thick, which is what I need. But, this part is obsolete. I

http://www.ko4bb.com/Manuals/Tektronix/Tektronix_-_Miscelaneous/Tek_Evaluation_Board.PDF This is the link to the manual. Bob

I know it's nicknamed evil-bay, but anyway, there's a 556 out there right now. It's in Milwaukee, with Type 1A2 and CA plugins.

I have no affiliation with the seller. http://hartford.craigslist.org/ele/3632197113.html -Kurt

Yes, I make a kit, and can send you wires or you could use your own for less. I've been using the same 24 gauge wire as for 7k extenders, but the originals seem to use a little larger gauge. Does

I have a new switch on order but I will try that while waiting. Thanks. And with respect to Tom's advice to just pop the actuator off toward the front with a screwdriver that indeed worked perfectly.

I purchased two TM500 extenders and four 7K extenders from John. I am building the TM500 extenders now. The PWBs are of very good quality and John has done a very good job with supplying the kits. If

Here is another attempt at being an information source instead of a sink :-). The first time I tried to clean a 2235 CRT shield I used a soft lens cloth like you get with a pair of glasses. I thought

Resistors looked more or less OK, that was one of the first things I checked. The 2 2.2M in series had drifted down to 4.2M, while the 1M focus was up to 1.2M, so more or less a wash. More

This probe (it says Fairchild Scientific Instruments 106 on the cable) is a good 1x probe. I bit the bullet and tested it on a scope compensation signal and it has a slight overshoot but a very flat

Thanks Craig, Craig was referring to his spreadsheet with tallies of types of wire used, (but not their wire gauge). Since an original Tek extender uses 58 thin wires, and only 4 thick wires and 6

I'm with Tom. I ordered the arcade cards first, then got two sets each of the TM500 and 7000 extenders from John. Much, much better IMO. Mark

Other possibles listed by DoD WEBFLIS include MAN10 (Monsanto, probably hard-to-find) and TIL302 (Texas Instruments) - try Lite-on for a cross reference. Mouser carries Lite-on, so their drill-down