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I didn't know that. I just went through the schematics and some photos of the A2 board and found the connectors. It should be an easy upgrade. Thank you for the assist! Bill

AH! thank you very much, sir. What is the title / Tek # of that document?

Here's the exact text on Mod 801C from an old document (microfiche): "Trig, 2 vert & cal paralleled to rear, BNC; ext horiz, sawtooth & gate out paralleled to rear, binding posts; 2 gound posts

Thanks Sigur?ur, I could just try to program a fram, if it won't work I could simply use the eeprom trick and keep the battery(sigh). OTOH, I could just try to replace the battery and if everything

Riga caps replaced. Scope still apart. The "Control Button Error" seems to be in the interlocked DMM push button assembly, specifically the last section of the "CH1V" switch. Ohmmeter checks show

@dc_rawding, I've been looking for Dennis Tillman's boards with no luck, but the effort led me to this thread. At only ~15 months old, I have some hope that it's still relevant... I did check out the

I have repaired and adjusted a 2756P and a 494P. Apart from replacing all old capacitors as recommended by KE5FX document I also checked all RF boards for "suspicuous" components. One thing to look

<giuseppe@...> wrote: I have not done this, but IMHO if any of the 24X5|7A|B scopes allow this, all of them do, as they all have the same processor and the same bus timings. IIRC the

Thank you for that information. That means that we can add the 666 to Dennis' list of tube testers that will work with his VCTC. DaveD KC0WJN [email protected]> wrote:

Dave, The difference between the Eico 666 and 667 was purely to update the types of tubes tested: the 667 added support for 9 pin Novar and 12 pin Compactron tubes, and dropped the sockets for large

Finally I decided to take care of the baby, before is too late: TEK2465B S/N: B017389 Hours: 10045 Pwer On/Off: 1783 AFAIK never recalibrated, no sticker applied Apparently I have at leasr OPTION 5

Jon, I have 2 SC504. Both of these units have this exact mod. I found some documentation that stated that a later crt required a circuit mod. Thanks, still putting the pieces together. Barry

The power supply on a 2465 has 2 four pin connectors to power optional Lemo jacks on the rear panel of the 2465. No new power supply needed, just a jack, board connector, hole and some wire.

Hi, I have VmtWin-release032201.zip and some more. Try this: https://1drv.ms/u/c/3c3521628e6cc41e/ER7EbI5iITUggDyNrQAAAAAB5zjM6oyIZLmIAsPv4t1dyA?e=lEACjo My VM700T backup battery did run out, and I

Thanks, I'll look at that. Andy.

Hello Jose, the one you are mentioning is not right schematic for TDS784A power supply. Here you can find proper diagram: https://hakanh.com/dl/docs/hardtofind/TDS544A_A17-A19(PS).pdf Power supply

OK, found one good enough: https://download.tek.com/manual/070971003.pdf page 5-141

I'm assuming a similar setup like the later 492 for the following comments... The issue seems to be one of accuracy. It won't lock in time when high accuracy is demanded by the cpu. If like the 492

Good Morning All: Got a 784A where the PSU is bad (this model: https://jvgavila.com/tds524a_6.jpg) one of the capacitors has leaked and may be exploded to the point where the fiber glass weaving of

I think you should probably review what was done with the EHT transformer replacement. My guess is its running unregulated and the output is way too high. That would cause reduced horizontal and