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I might be able to find a couple of 8056 but I am not sure of their condition. Changing them changed the DC offset and i have no way to check them right now. friend of mine has a tube tester but i

Hi Craig : The Cap for 5V light checked O! the may be some short at Front panel interface board ? from the switch boards shielding ! I may need to disassembly the front panel to clean the switch

Stanford Research Systems offers a system similar to the Tektronix TM-500/5000 systems. I've not done an exhaustive comparison between what plug-ins SRS offers and what Tektronix offered; I suspect

Go to your other thread on this and do the basic checks I mentioned.

Hi JJ: TP1625 are normal 40V +/-3V ! ( it must be connected to maim unit , it is related to CRT HV CKT ! If PSU alone , such voltage reading will more positive ( + 130V ) ). On the other hand , I did

Now that all these tertiary issues are disposed of (I hope), on to the problem. First of all let me make some assumptions here - You know how to use a triggered scope. You have tried auto trigger,

Mine is a TM504. There's a backplane programming book, and you will need the manual for each plugin to see what the exported signals are.

What album?

Have you tried boosting the filament voltage ? I have had good luck with that in TVs and now did a scope and it came out fine. It is just a matter of either jumping out a resistor or usually adding a

Hi, This is a group, not a forum. Many members (most?) access this group using the email function. With that function, messages are emailed to the member, and display on the member's computer in

I'm finally getting around to fixing, updating and working on my 500 plug in collection. I have a, apparently, rare TM504A chassis that was modified by a previous owner so not all modules work in all

Hello Vaclav, Please see my answers just after your questions: Rgrds, Fabio You're welcome... don't need to apologize. My mistake... I just assumed there could be a picture because your original

Mine has the numbers -0755- hand engraved in the handle so the P/N is 003-0755-00. I added the page from the Tools Catalog to the album. /H?kan

Sorry, perhaps me posting my first one wrong way. Why is there even a need for attachment? I did not indicate that in both of my posts. I think I am capable carrying on a discussion without pictures

Fabio, I have looked at the pins you mention on U2232, particularly at pin 12, C1 which is involved in adding zeros. The behaviour of all the pins is consistent with a logic low of around 0.5V and a

Hi Albert, There are a good few on eBay.co.uk. Most are in Germany which should be handy for you.. Plenty in the States as well. Regards jim Ei2BB

Used to have some many years ago.?Will check just in case any are still in the drawer but pretty sure I sold mine to someone on eBay. www.cwgsy.net/private/mandoline "Error 008472. Horrible bug

A useful site is Frank's Electron tube Pages, http://www.tubedata.org and its mirrors. The 8056 pdf for instance via http://frank.pocnet.net/sheets8.html

Hi John: I have refurbished two 570 scopes and your suggestions are exactly the procedure I followed, but did not document. I replaced all the can electrolytic caps with modern high voltage tubular

Hello John Both you and your friend are lucky guys to have got hold of a 570 each! They are rare as hen's teeth. Only one comment. Silver-bearing solder could be confused with lead-free solder. Best