The storage CRTs in the 7613/23/33 are indeed smaller than the (gloriously large) CRT in the 7603, and there is likely to be more room for play, as the chassis is the same size for all the 76x3 scopes

Is it just me, or does 50 V seem a little high for the +32 V rail (even if it's unregulated)? -- Jeff Dutky

There is a 2466BHD for bid on the auction site; seller is in Nara, Japan. I've never seen one of these for sale before, only read about them on TekWiki. The auction title is "Tektronix 2466BHD HDTV SC

Zen, I think the 465/475+DM44 is nice to make a video of: lots of eye-candy with the green/blue CRT and the red LEDs, as well as an interesting dual intensified mode for doing timing measurements (at

I'm not sure about spoiling the look of a 465/475, but I in my callow youth (of almost two years ago) thought that they were something special. I was lucky enough to obtain a DM44 as part of a 475A pa

Chris, Interesting. I've only seen reference to two hard drive controller boards for the 3001GPX, ST506/ST412 controller that I have in mine, and an IDE controller. If/when the hard drive in this fail

The DM44 has it's own regulator board mounted in the CRT compartment, which provides +12, -12, and +5 V rails. It also seems to take +50, +15, +5, and -8 V from the scope's main power supply. I don't

I meant "HSM" not "HSB" -- Jeff Dutky

Jim, Thanks for the reply. I was going to replace the battery anyway, as it's about the only thing that I can do to address any immediate deficits with the instrument, but fingers crossed that it does

Several of updates: 1) I verified that the hard drive option (Opt. 1M) is actually installed (which I already suspected from the "Opt. 1M" tag on the back, along with a tag indicating that the hard dr

I just acquired a Tek 3001GPX with all the goodies (keyboard, three P6490 acquisition probes, and 2 extra probe lead assemblies for the P6490s). It powers on, passes all it's self tests, says that it

James, what about the corresponding rectifiers for that cap? Wouldn't leaky diodes also cause ripple? -- Jeff Dutky

Steven, Those MasterBond pages are a real wealth of information. I found a much shorter URL for the Surface Preparation for Plastics page: https://www.masterbond.com/resources/surface-preparation-plas

I wonder how the contact points got damaged. There's basically not friction in these switches, so we must assume that either there was arcing, or that somebody manually caused the damage. I would susp

PMF, If I did not make it clear in my message, you are probably not going to be able to effectively glue Delrin -- basically nothing sticks to Delrin -- so a mechanical solution is the best way to go.

PMF, I have several Type M plug-ins with the same problem of Tek-made wire-wound pots cracking where the shaft is secured in the cross-shaped rotor. I have not managed to fix these yet. The "best" sol

Nick, I looked at the pictures in your album. I don't see the BW LIMIT indicator, so I think that's not the issue. There are also two trigger modes that might be affecting this (if it is trigger relat

Barry, I use my 7CT1N in a 7633 mainframe with a 7A15AN in the horizontal bay, and a 7M13 in the other vertical bay (to label curves). I found that getting the correct attenuation was easier to do wit

Nick, If you have option 06 (Counter/Timer/Trigger) then your scope can show you the frequency of a triggering input signal. If I am reading the manual correctly it looks like Option 06 is only good u

JohnEdward, I would also point you to the excellent video presentations by W2EAW (Alan Wolke, a member of this group) that he has on his YouTube channel (https://www.youtube.com/channel/UCiqd3GLTluk2s