开云体育

Do look into shipping by bus. -bus station to bus station -sending and receiving parties go to the bus stations - not very expensive -May not be very fast -packages are handled by people not massive

Here's a page on a fabulous, late 570 I sold into Japan in 2000: https://www.pearl-hifi.com/07_Facility_Tour/Tek_570_005580/Tek_570_005580.html and here's a page detailing the crate I made to get

"Apparently even Tektronics was not above a well executed kludge." Please stop this. Bad enough in ebay listings, but here?

I have no idea how they lost it, but apparently it's not unusual for the GSP to lose packages; apparently it arrived in the UK and the courier is still waiting for it (a month since it got to the UK).

Yes, isn't it. Apparently even Tektronics was not above a well executed kludge. Thomas Garson Aural Technology, Ashland, OR By my calculation, the dynamic range of the universe is roughly 679dB, which

Fedex and UPS pack things fairly well, I have not had any damage. It can be pricey, but is usually less then traveling to pick something up. Some people offering equipment demand that you pick it up

Ups , FedEx. At least in the US. Use heavy card board and at minimum 2 inches of loose padding all round for shock. I have gotten them double boxes before and a 576 even in a wooden crate the trick is

Depending on how many boxes you need check out Uline.? They have double wall boxes of all sizes.? Staples have some boxes that are better than the Amazon boxes.?? 73, Bill, WA2DVUCape May, NJ

Is there a good service to use to ship scopes? The only boxes I have available are from Amazon and they are not very sturdy so I wouldn't trust shipping something heavy and expensive in them. Thanks,

You're right - my fingers were typing faster than my brain. SCM

Replacement 5V crystal arrived today. Extremely fast dispatch but its output is only 1.2Vpp and nowhere near the expected TTL level! I modeled satbegginers idea in LTSpice but couldn't get it to work

Colin, I had the afterthought about low voltages since the regulation of the power transistor Q1195 relies on +5V, +15V and +130V being OK. The components I mentioned are all on the low voltage side

Chuck, thats how I would engineer if I wanted planned obsolescence... a nice single point of failure. cheers Martin

Honestly, that is what I find in about 80% of the repairs I do. A single poorly sourced capacitor wrecked all orderly operation. My favorite is the bootstrap capacitor, which is invariably some cheap

The ripple on the -5V looked really quite high ...

Hi Roger, Thanks for all the ideas. I am a bit careful with voltages over 1 KV, but in the past, when I was still at school, I caught a belt at 2 KV on a homebrew scope that I was trying to build.

Apologies - I skipped the very important 'check all the low voltage DC supplies', there are so many inter-dependencies in these scopes. Roger

Colin, The voltage on the 'collector' together with the voltage on the front mesh of the storage tube depend on a +600V supply derived from a separate winding on the HV transformer. So the lack of

Not very good at finding things on schematics but I'm fairly sure that the funky looking capacitor is A27C321 I'll have to look through my stuff and see if I have a spare of a decent value on hand.

Interesting dead bug looking patch in the last picture John