That one looks like an advert for his “large assortment of unique and high quality test and measurement and electronics items for sale”, which if you send him a note as he asks, he’ll almost certainly

Sad that it’s sold sans tubes, but better that way than what some of the audiophools do: pull the 6DJ8 tubes to sell them and discard the rest. :-(

I bet it’s called “Angry Spouse.” :-)

Sad indeed. I bet there’s more to the buyer’s side then he was letting on. Reading between the lines, the broken knobs and ‘scope winding up in the dumpster sounds like anger management issues. I bet

Do you know for sure that he couldn’t be bothered? Sometimes, with all the best intentions in the world, life unexpectedly and unavoidably intervenes. Most of us aren’t exactly spring chickens any mor

I wish! I only have a 1A2, 1A4, and a Z for my 549. Plugins show up on eBay UK every so often, but as my 549 is mainly a working personal museum piece, I’m not inclined to get more unless they’re unus

As a veteran of DIY car and motorcycle repairs on points-ignition systems, I’d recommend trying condenser replacement, even if it’s new. Modern replacements are not infrequently defective right out of

That is eminently reasonable, though I think another reasonable approach would be to switch to a Web-based forum, which would offer a number of advantages — multiple sub-forums, multiple parallel thre

Turn off storage mode — the UPR and LWR buttons under “STORE" should be out. Push in all the grey buttons, slowly turn up the INTENSITY and see if you get a trace.

No, not at all.

Thanks for the tip!

That’s what mine looks like.

I have too. Though I have the capability and capacity to do so, I’m rather uncomfortable about making it publicly available without assurance that all the material is legally redistributable. Retained

Looks like the manuals linked in blue are downloadable. The ones in red appear not to have been uploaded yet.

The Display Filter on mine causes the display to vertically shrink and distort. I suspect failure of one of the two diodes and/or capacitors in the filter.

I picked up a 577 D1 last weekend, and have replaced the CRT — it came with a replacement, due to the original being dim — and a pair of transistors in the Z-axis circuit that died after about twenty

I have a 549 with Type Z, 1A2 and 1A4 plugins. I love it and it just works, though I need to do some mechanical restoration work on one of the 1A4 channels. I also have a 564 which produces a trace an

I suppose it depends what you’re doing and what you’re used to. I developed software on MS-DOS, Xenix, and SCO Unix systems since the mid 1980s, which led naturally to using Linux systems in the 1990s

I’m now on my second MacBook Pro and tried Parallels when I first got my first MacBook Pro a few years ago. I found Parallels to be flaky. I removed it and installed VMWare Fusion, which I’ve found to

Never mind — found it. It helped to use the Polish for oscilloscope (oscyloskop) rather than English! https://allegro.pl/oferta/oscyloskop-tektronix-model-647-7735501495