tek 2430 oscope

Pete:

You can keep a lookout on eBay for an identical scope, which you will likely pay $200 for to get it to your house and then keep the busted one for parts.

You can chuck it and buy a different scope on eBay for about the same price.

You can bite the bullet and spend $70 or $80 for a new micro, and hope some other proprietary IC doesn't fail before your VISA bill is paid off.

Older used stuff has drawbacks, and one of the main ones with equipment of this type is the non-availability of spare parts. C'est la vie.

But then you already knew all that.

Life just sucks sometimes.

Dave S.

"Dave" wrote in news:Xx5sj.19116$w57.2869@edtnps90:

Yes,they are TEK-made ICs and long out of production,stock depleted,obsolete,not available from TEK.

the entire 2400 series tanked really fast once TEK sold off their Hybrid/ICO manufacturing unit,a really BONEHEAD move by the TEK beancounters.(and I bet TEK never fired those IDIOTS,as they should have.) You have no idea how that screwed over a lot of TEK employees. (my vote for 2nd big TEK MGMT goof would be "OpenUpTime".)

Have you tried Sphere in Canada?

Has anyone produced a site for "work around" fudges for Tektronix specials.? There must be loads of people faced with throwing out say a 250MHz Tek scope, would consider repairing to continued use to 150MHz or lacking some of the trigger options, etc based around an off-the-shelf video amp/ECL package, non ideal SMPS transformer etc

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

"N Cook" wrote in news:foufu0$ms7$ snipped-for-privacy@inews.gazeta.pl:

I just communicated with a guy who's going to rewind some arcing 485 HV transformers. Another guy built his own replacement HV multiplier,IIRC,for a 2200 scope. I'm sure people have built their own thick-film HV divider replacements,too. Also,a guy who claimed to have created a discrete replacement module for the infamous 2445/65 series horizontal output amp IC contacted me about evaluating it for him. (I don't have the gear necessary for any eval.,nor a test-bed 2400 scope)

Other than that,I have not heard of any kludges to replace TEK-made ICs or other parts.

I'm sure that with today's SMD components,some "hybrids" could be made to replace some TEK-made ICs,and get reasonable preformance,too. Some of the TEK manuals used to have simplified circuit diagrams for TEK- made ICs.

the 2445/65 hybrids would be tough,as they were laser-trimmed to spec on the manufacturing line.

Someone was talking about designing a replacement. I think that was on news:sci.electronics.design a while back.

"James Sweet" wrote in news:Y9Gsj.1038$th.287@trnddc05:

yes,you would never get the source firmware. But TEK generally used COTS ICs for that,and programmed them in manufacturing.

all the 2400 hybrids had digital logic on them to control modes and gains,along with fast analog chips.

Was there any code though, or was it just logic? If the latter, discrete parts, or a small FPGA could handle the logic.

"James Sweet" wrote in news:chHsj.1043$th.487@trnddc05:

there was no processing on the hybrid ICs,just latches to hold the control bytes from the microprocessor board. there was a clock input and the serial or parallel data input,depending on the particular IC. data was muxed to several hybrid ICs from the same bus. Actually,inside,the hybrids were a ceramic substrate with thick-film resistors,SMD caps,and two or more wire-bonded IC dies. it was bonded to a finned heatsink/cap.