Are all VAC referenced here RMS? (both for the supply source and the cap?) 280VAC doesn't seem like much safety margin for a supply that is going to be used at 277VAC Also not clear yet what the

This argument about attachments keeps coming up every 6 months or so by new users who can't believe that attachments are disabled. I think Chuck copies and pastes the same old worn out arguments

from Tim P (UK) Still trying to sort my 5116, which is frying the HV oscillator. (Blows the 5.1 ohm resistor and/or the oscillator transistor) Someone here suggested the problem may be on the HV side

It usually means you have left a connection undone. Check the connections to the CTT board that pass through the chassis to the motherboard side of the scope. (Ribbon and two coax). -Chuck

This group is full of technical folks. They divide into about a 10 to 1 ratio of those that understand the underlying mechanism of the group, and those that just use the group. This group is

Oh, you are talking about data URIs. Support in email clients (and some servers) does not paint a very rosy

The X2 caps are just about OK for the job but very marginal. They may well fail, usually by going low capacitance as transients piece the dielectric and they self-heal. They can also fail short

Hi all...I need to make a xformerless PSU for about 100mA current at 15V. AC supply can be up to 277VAC. What is the difference between using DC rated polypropylene capacitors vs the AC rated

It's not a reference. The photo is part of the message, coded as text. So it is as permanent as the message.

Hey All, After repairing the power supply on a 2467B, it boots up but to the error of "CT TEST 86 FAIL 02." The options manual indicates this failure corresponds to "In Trigger After Delay mode with

Does anyone know if the Tek 2225 ever had any graticule lighting ?? There is no control for it on mine ... Was it perhaps an option ?? Is it a feasible retrofit ??? It would be nice to have it

Thought I had a 7D02 + another not working, but can't find it and my knees won't let me dig through the piles any more today. I do have the PM 101 for it however. This probably dates back to ht

Do you want to pay the additional costs for more storage? IO Groups is a paid service, unlike Yahoo. Michael A. Terrell

from Tim P (UK) re graticule colours - the removable (not internal) 500 'scope graticule could be installed either way up. The hole for the lamps was either white or had a red film in the

Motion to "stop the practice of artificially disabling image attachments" so we can show off our Tektronix gear and project(s) in an easier to reference way and means. Has there been a committee

Yes, but where do these inline image references point? The author of that e-mail would have needed to put them up at some image hosting service to be able to inline the references to them. These

Here is the video and it does seem to work. https://youtu.be/BnR_DLd1PDI George

I've seen some photos sent with emails. They were not "attached" like email definition of attached, but rather in-lined in a HTML email. If you use thunderbird email reader to compose, it won't

Ceterum censeo: This may have been appropriate at the start of the century, but no longer is. Groups.io has the controls to allow lower-bitrate participants to follow even in the presence of

Well sounds like a real condition. I would recommend that you replace all of the 10uf,100uf,180uf and 250uf caps and this will probably get you back in operation. Hopefully you have a good desolder