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Thanks for the explanation, Jon and yes, it's Raymond from the Netherlands. My remark about the rise time: I see a rise time of 200ps in your photo, which is quite surprising, even for a 7104 with

John and Raymond (in Holland?) to clarify: 1/ Scope shots are NOT 7104 /7A29 They are 7904/7A26 2/ Lower readout is delay time of B sweep of 7B92A hor plugin (excellent for all 7xxx except 7104) 3/

On Thu, Dec 21, 2023 at 04:48 PM, Raymond Domp Frank wrote: Come to think of it: The full character scan of the Readout module could perhaps benefit from a little adjustment: The "tails" are a bit

I think that says 0.79ns. The 200ps rise time surprises me... Raymond

/g/TekScopes2/photo/291760/3725151 What is the lower right 00.79pS from? I see 10nS 200pS on top line and seem to be from the left right timebases. My 7104s are not fully working at

New photos: /g/TekScopes2/album?id=291760 1/ 7104/7A29/7B10/7B15 with leo Bodnar 40 pS pulser after transient allignment 2/ Bench with 7703/7L5, 7904, usual PUs Many 7000 and TM500 PU

Sounds exactly like the process I use to clean floppy drive heads on my vintage computers, just a tad more delicate. - David

I'd agree with that 100%. When I've done it, I've just used regular laser printer paper. Paul -- Paul Amaranth, GCIH | Manchester MI, USA Aurora Group o

Had 7000 scoles and pluguns since 1990s, perhaps 4 scopes and 120 PU... Fast notes: Attn.contact clean : Paper: We use business cards and 99% Iso Achol. Beware some wideband PI like 7A29 use

So, what IS cartridge paper? "Quality cartridge paper will have a slight texture to it – this is known as grain or tooth, and provides the resistance needed to hold marks in place and increases the

This is probably one of the most finicky restoration/maintenance tasks of any piece of equipment I am aware of. Not to discourage anyone, but it requires clean, careful and deliberate work. Radu.

For all the “finger” to pad cam switches, only ever use cartridge paper strips (say 1/8” by 1.5”) dampened with isopropyl alcohol. Turn the cam so the finger lifts off the pad, insert the

I have a 7904. One of my favorite combinations is a 7A26 (or 7A24 if I need the bandwidth), a 7D12 with sampling plugin, a 7D15 225 Mhz counter, and a 7B92A timebase.? The 7B92A does have a trace

What do you recommend using to clean switch contacts that won't hurt the plastics? I know some contact cleaner sprays can soften some types of plastic.

Excellent scope, I will add a few thoughts here having rebuilt a fair number of 7K hardware. Everything that comes from secondary market will need some form of servicing. There are 2 sellers on Ebay

I'm located in North Texas. I'm using the scope for hobby purposes, I don't necessarily have a specific application other than I'd like to have a nice variety of plugins. One of the reasons I was

I have a collection of 7S11/7T11 Sampling Plugins, but have not gotten around to using them yet and want to as a sampling learning exp, but then could sell them. How fast are you wanting them? -- John

Thanks for the education.

Bravo for the fine acquisition. your location? Budget? Use of the scope/plugins? Budget? Jon

Hello all, I just purchased a Tek 7704, my first "real" scope. I have a couple portables (Tek 454 and HP 1741A) but have never had the chance to work with anything like a 7000 series before. I