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I'm not sure I'm on the same page here. What kind of plan? Which caps? Dean

Hi, Andrew, The 317- resistors are standard stock items in many catalogs. I may have one here, though in case you're having a nasty time trying to find one. Regarding the 307- attenuators, are

Hi All, I am looking for the following Tektronix parts: 317-0392-00 RES.,FXD,CMPSN:3.9K OHM,5%,0.125W 307-1020-00 ATTENUATOR,FXD:50 OHM,2X 307-1023-00 ATTENUATOR,FXD:50 OHM,5X 307-1024-00

Hi windsor In case your mail is not working, the fan module arrived today. That is what I call prompt service. My payment should be there soon. Richard

Hello My email is mongteen@... Anyway the motor module is on it's way. Hopefully customs won't hold it up too long. If bits of white foam show out of the corners they might suspect

Hi Dean Thank you. I have been looking over the fan installation. I have a good solder removal tool, plus solder wick. Actually I think I did ok for $225 for the scope. The jitter is minimal,

Windsor, you discovered the fundamental truth we were always taught in Navy "A" school. Always check the power supplies first. And Don, bless his generous Aussie heart, is correct also: you're

Rich, You'll find that the fan motor is a circuit unto itself. The motor itself is brushless and has several Hall-effect sensors inside for input to the drive circuitry. I've replaced motors

Hi All, I am looking for a Vertical Amplifier IC for a Tektronix 2235A Oscilloscope. Tektronix Part Number is 234-0133-20 Can anybody help? Regards, Andrew

Its going to be a couple of months before I get all the stuff here. I am depending on you to remind me of this need you have for the 21A and 22A. Did you say the early version would be OK or do you

Hello Thanks for the tips. I found a replacement cap from a 545A "hangar queen". Now the RM31a works great and no jitter. The cap in question was leaky, thus causing the ripple. Oh and the

my 1100) so I my shop Amazing!! Thanks you very much, I would be very grateful if you could find me a 21A/22A set. Morris

Does anyone know where to get a decent front cover? I would like to take one to some of the plastic molding firms and see what it would cost to make up maybe 100 or so. This part seems to be the

Hi Windsor Your Email address no longer works. I hope you have sent the tek 475 fan. Let me know. Richard Thanks the very set So I

supplying diodes of the Even the Selenium Rectifiers aro OK (at this time), REPLACE them! Often they fail suddenly with a short and not in any case the fuse(s) blown fast enough to prevent damage to

If you have identified the bad filter cap, I probably have a good salvaged replacement that you can have for a few bucks. Let me know. Stan w7ni@... mongteen@... wrote:

Mixing 21,22,21A, 22A. Let me say I don't know of any reason why you couldn't do it but I have never tried it . . . I will keep my eyes open for some plugins for you. I just enlarged my collection

triggers <snip> those Hi Stan, Thanks for the advice. The only 21A/22A I have ever seen, which belongs to a friend, has the later version triggers. These timebase plugins are not easy to find

morriso2002@... wrote: Hi Morris, There was an extensive modification to the 21A and 22A tunnel diode triggers at SN 11000. 21A and 22A timebases have the older tunnel diode

Hi Windsor, You seem to have found the source of the jitter however I think you're working around the fundamental problem with your small bypass capacitor. Check the regulated power