I won't say you *can't* buy USP labeled IPA in drug stores, or grocery stores, in the USA, but, I have never found any in all the years I have been buying it. In the US, Fischer Scientific is a BTB

Really Dave? I said IPA, not ethanol. I know the difference. In the US, denatured alcohol has no exotic flavor added that would dissuade you from drinking it, only the methyl alcohol that makes you

Hello, Forgot pictures get cut. Well to describe, directly above or below the measurement readouts there is an interference on the trace, like a ghosting of the values. Wednesday, May

Hello All, A while ago I posted about some ghosting of the measurement valves on the trace of my 2445B. At the time I was messing about pushing some buttons and having pushed the

I can't reach the contacts to clean them they are in the metal box. How do I get to them I have removed all the screws I could but one. don't know what else I can do.

Folks a little more advice. I have dismantled my 2465b removing back cover, body, and facemask. I have removed a few screws on CH1 A11 and there seems to be an unreachable screw. What now? Stupid

Rigged up a reset and it's helping. I won't really be able to tell what's going on at startup until the edge card connector arrives and I can look at the address lines, but I can tell by looking at

Corey, Welcome. I think you'll find everyone very helpful. Colin, I'd like to propose an arrangement whereby members can rent an extender from someone who has one. Ebay bandit level PayPal

I use IPA, Everclear, acetone, lacquer thinner, and distilled white vinegar on the bench for cleaning agents. IPA is used in a few forms %70 General dusting and wiping things down. Also for very mild

Yes, that is correct. I don't think the problem is to do with channel 4 itself, but more about the memory where the trace data is being stored once digitized and/or how it is being accessed. I am

Rubbing alcohol also usually contains additives to make it less drying and irritating to skin. It leaves a residue and is not a good cleaner for that reason. You can buy industrial isopropy alcohol of

No Rifa's in a 2215A, but there is a netfilter that might be Schaffner... In that case you have a similar situation, at least when you are in a 240VAC part of the world. Leo

I figure the talk of bitterant is supposed to be about "denatured alcohol", which is ethanol adulterated with methanol to make it poisonous and thereby avoid liquor taxes. Dave

Is there a picture of these RIFA capacitors so I can find them more easily? There might be some in my 2215A (but not likely in the 545B or the 547). Thanks, Roy Roy Morgan K1LKY since

Same with the bottle of 70% on my desk - sold in Canada - but I'm not tasting it to confirm! --Toby

Hi y'all, here's a partial list of what I went through. Tektronix: 067-0589-00 x3 067-0616-00 x2 670-7101-00 067-1041-00 670-5266-00 067-0912-00 HP 5060-0049

In section 6 of the 2465B service manual it states to use only "isopropyl alcohol", but it does not state what percentage. Most people would choose to play it safe and use 99%, but 93%, which is more

Ammonia particularly dissolved in water reacts rapidly with copper, brass and zinc. Not recommended. --Victor

Interesting... While 70% IPA (isopropyl alcohol) is pretty nasty to drink by itself... even diluted appropriately... (as it partly metabolizes to acetone)… I'm sure someone somewhere would want to

I would like to offer these U800 data points to the group in hopes of extending the operating life of these fine scopes. 2465 #1, trace drifting to the right. Recapped, now working fine for several