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A bit off -topic: today picked up Fairchild 765H Portascope with 74-13A timebase and 76-02 25MHz dual trace plugins, with probe, all for A$10! Transistors with quite a few nuvistor tubes; EHT power

Pete, Some (many young?) people think "scopemeters" are the Real McCoy, having never used a traditional oscilloscope and may think no one else alive has either. OTOH, The digital heads only think in

Why? This is unscientific. Debatable advice is debatable no matter who utters it. EJP

Tek folks, The seller as acknowledged my offer and I will be making arrangements to get the lot. Most likely I will store them near Greenfield till they can be sorted and moved on to folks who want

Looking at the author's site, it *appears* that he has good intentions, and enjoys learning about a wide variety of things, but lacks actual expertise/experience (at least in electronics). He may not

Tek folks, I am working to put together a deal for these scopes (I am on western mass in striking distance of the NH seller) Goal is to get the lot and pass along scopes to interested list members,

Hi Barry Thanks for the prompt response. I'll let you know how I make out. Harrison N1FAM

Michael. Thank you for your pictures and explanation. Your repair looks very professional and obviously was effective. Unfortunately I don't have access to a 3D printer for the enclosure. I am

Hi Harrison, Yes, that all sounds correct. From the symptoms your scope is exhibiting as compared to mine and others, the multiplier is likely arcing inside when it gets up to working voltage. As far

Barry, Thank you for the picture and explanation. I believe it is pins 8, 9, and 10 of T550 that relate to U550. It looks like pin 8 goes to the PCB. Pins 9 and 10 go to U550. I wanted to confirm that

Oops. Sorry about that. Where was my head? Yes Siggi, you got it right.

Hi, I recently obtained a 2710 SA in non-working state and I am trying to repair it. The problem is (well, there may be more than one problem, but this is the one I can observe at this stage) the

please research the author first before debating the article !

Yes, the guide seems to be lacking common sense. The comment measuring the line voltage (and frequency) brought a smile. I remember back 40 years or so ago an instructor at a well known university was

Siggi, I am near NH and would be glad to participate in a shared purchase. I could use one (maybe two) scopes and a cart. No room for much more. Roy Morgan K1LKY Western Mass Near Greenfield.

Well this article assumes you know something about connecting a scope to a live AC circuit. A differential probe is a great starting point. Also using a battery powered scope and a making certain no

Hi, I have a number of TM500 mainframes here I'm working through restoring alongside my collection of modules and I've seem mention of each mainframe having certain quirks and things to look out for

Looks like this is the ad: https://nh.craigslist.org/ele/d/meredith-tektronix-scopes-lot/7188124391.html ? [email protected]> wrote:

How can I see the posting or contact the seller? Bruce, KA2IVY

For sale in NH for $450. I am not affiliated with the seller. But at $45 per scope plus the scopemobiles, that seems like a pretty amazing deal.