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only way I can think of is what happened to some spellman supplies HV windings, failure HV gone/ intermittant-why burned a small section open inside of the wind and a carbon track is now in series. I

Recently my 7633 HV stopped putting out HV and obviously lost the trace. I received a replacement HV supply and have installed it to restores the scope to operation. I am still curious as to the

Sounds to me like you aren't even close to being ready to mess around with calibration. Fix your power supply problem, and if your scope is a "B" model with SN B050000 and above, replace the SMD

Hi folks, I was performing the CAL08 procedure as suggested in other trend to fix a four rows of dots that are showing on the screen. First, I could not adjust grid bias trimpot (R1878) because the

Glen, and others who replied a little update; adjusting the CRT bias worked on the 1740 with no increase in the overall current draw of the unit. The 1760 showed bright spots at any increase of CRT

Glen, good idea that may work on the 1740, the 1760 has more computer adjustments and I am a long way from that abillity. One company I worked for did industrial/broadcast repair for several TV

Oh No, more test equipment? -- Jeffeelcr

Some vector-scopes have access to the x and y amplifiers. This was used to display stereo phase. It can be used to display component curves to make a component tester. Glenn

These are useful for checking/calibrating old NTSC equipment.? Lots of NTSC high quality CRT monitors still around.? To calibrate them properly, you need to have calibrated signal generators.? To

O_K, I thought someone was dealing with before. This crt wait for someone interested. Regards Jean L C Ruelle De : [email protected] [mailto:[email protected]] De la part de Dale H. Cook Envoyé

Jean L. Ruelle - The Tek 1740 and 1760 monitors do not use storage CRTs. -- Dale H. Cook, Retired AM/FM/TV Chief Engineer, Roanoke/Lynchburg, VA https://plymouthcolony.net/starcityeng/index.html

If you are going to get the DSA602, the A version is the one to get. Mine was version 2.23. There is also an 11803 that can sample faster I think, may also be an A version.

Yes, in North America. ed

My question is why do you want to resurrect these monitors. There only purpose in life was to monitor SD 525 composite video. They don’t do anything else! Unless you’re into monitoring this now

If these were used in a TV station or production facility, you can bet on the tube being worn out. These were usually left on 24/7/365. Try changing the CRT bias ans see if you can get some more life

Waveform monitors and vector scopes in TV stations were operated continuously for years, having weak CRTs was common back then and is today. If the monitor works well and the trace is dim but focuses

Hi I think I have a storage CRT in good condition I check the TEK part number and I advise O_ K ? J L R De : [email protected] [mailto:[email protected]] De la part de Dale H. Cook Envoyé :

In that case about all you can do is substitute another CRT. -- Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA https://plymouthcolony.net/starcity/radios/

I absolutely love my DSA602A. ?I don’t find it particularly noisy. ?Not much noisier, if at all, that the fans on my 2xxx series scopes. What firmware revision do you have on yours? ?If it

Hi, I have two of them. I like the DSA, although its huge and not really silent. The most common failure of the acquisition board can be repaired easily. Mine are those without "A", i.e. without