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There aren't many tropical jungles in Stoke-on-Trent, but maybe it was stored in a garden shed neat the river Trent? The price is well-above any sane person would pay, surely? Colin.

Here is a parts scope I got from eBay /g/TekScopes/album?id=257163 Most of the knobs are smashed, it's been spattered in something gray that won't come off with soap or IPA, but when

Awfully high price for an "ornament"; and you'd need quite a substantial Christmas tree to hang that from! -Dave

Just saw this on ebay in the UK : https://www.ebay.co.uk/itm/Tektronix-Type-545-Oscilloscope-Vintage-Antique-Collectors/353290325095?hash=item5241be8c67:g:-GYAAOSwBPZfvDOx Looks like it's been stored

I checked my working scope this morning. I wish we could do inline pictures. I reviewed my tear down pictures and found that I had a shot of the DTP knob before I took it off, and am 99% certain that

Colin, Oh, I had expected some kind of calibration process, but it's just a bunch of constant offsets for different models. I see that I am lucky to only be concerned with a model that is always set

I've gotten it occasionally. I usually go there from what Firefox calls a private browsing window. Cookies aren't saved there and the first time going after restarting the browser is when I would get

Weird. I NEVER have a Captcha / Not A Robot screen or button when using PayPal.... I do not save my password. Have to enter it every time, my choice. Works for me. I do not understand the "how far

Hello to all, I should have many 3A1/3A6 and other 56x series plugins in my stock.? The problem is they are on the other side of Ohio at my other house. Let me know what you want and I can look for

Thanks for the guidance, I suppose I have to take the cleaning challenge first as there are couple of suggestions for it. As I didn't get any signal to R130... I am also getting another unit to

Bob, Where are you located? there is a small handheld Tektronix scope in a surpus store near me and that I can probably get cheaply. As best as I can remember it is a 2xx model but I don't remember

Hi Tom, You must have done that calculation before the thread caught my attention. I've checked everything I wrote, and I don't see anywhere that I have said, "but they might still have made a

Thanks larry

I have a pile of old IBM and Telex terminals from a local school system when the state moved away from old IBM mainframes. They are stored in my garage, but I am unable to get to them without help.

Carbon Composition resistors absorb moisture. Bake them for a while before tossing them out. Also, high value resistors require voltage across them to work at their marked value This used to be

I have just checked input resistances on a working-to-spec 7A26, the results are quite unexpected!. If I use an analogue meter and have the 7A26 powered off then in the 10mV position the DC

I thought about this a bit, with the huge volume of paypal transactions every day across the world, the actual number of horror stories would have to be a fraction of a fraction of a percent.

I don't recall seeing it in any Service Manual, but our good friend H?kan has produced a document on the topic: http://www.hakanh.com/dl/docs/hardtofind/dtmsettings.pdf Colin.

Once I had the same issue with the 492 attenuator. Taking it carefully apart, one of the wafers was burned. I was able to manufacture a wafer myself, using very thin teflon laminate and 0402 SMD

OK, yuzz made me look. I found the schematic for the 475A, and my quick assessment is that there's nothing special about low capacitance or inductance or precise value of the R1356/R1544 combo. I also