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Troubleshooting a TM500 series plugin
The hard extender for the 7K frames has 3 bnc cables down each side. For some of the adjustments you need to rout that signal out of the scope or some where else. If I remember correctly this is mostl
The hard extender for the 7K frames has 3 bnc cables down each side. For some of the adjustments you need to rout that signal out of the scope or some where else. If I remember correctly this is mostl
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Eric
· #166031
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TM5006 Feet
One of my units has been missing a foot in the back right for while I am seeing if there is any extra out there I have the beige TM 5006 frame.
One of my units has been missing a foot in the back right for while I am seeing if there is any extra out there I have the beige TM 5006 frame.
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By
Eric
· #166030
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Troubleshooting a TM500 series plugin
I use a tm503 frame and older version with the cover removed. It has worked on everything so far other then a power supply. The frames with no plug ins usually go for around $40.00 on ebay. As long as
I use a tm503 frame and older version with the cover removed. It has worked on everything so far other then a power supply. The frames with no plug ins usually go for around $40.00 on ebay. As long as
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By
Eric
· #166026
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A sick 7603 can it be restored?
Well it turns out I had a Tech issue and not a Tek issue. I have a variac and current limit supply on the bench that is adjustable. 6 X 60W light bulbs that are switchable. I had 4 of them switched in
Well it turns out I had a Tech issue and not a Tek issue. I have a variac and current limit supply on the bench that is adjustable. 6 X 60W light bulbs that are switchable. I had 4 of them switched in
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By
Eric
· #165696
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A sick 7603 can it be restored?
I was able to pull apart the power supply and just hit the order button on the parts. Ill be sanity checking the parts but some of the filters are toast. I have some high quality replacements on the w
I was able to pull apart the power supply and just hit the order button on the parts. Ill be sanity checking the parts but some of the filters are toast. I have some high quality replacements on the w
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By
Eric
· #165665
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A sick 7603 can it be restored?
That is where I am headed next just wish they were a little easer to get to. But that is what makes a restoration fun
That is where I am headed next just wish they were a little easer to get to. But that is what makes a restoration fun
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By
Eric
· #165529
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A sick 7603 can it be restored?
Well before I do anything else I have to address the capacitor issue. Got the scope hooked up to the -50V rail and there is 260mV pk-pk of ripple . It is a nice clean saw tooth generator at the moment
Well before I do anything else I have to address the capacitor issue. Got the scope hooked up to the -50V rail and there is 260mV pk-pk of ripple . It is a nice clean saw tooth generator at the moment
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By
Eric
· #165526
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A sick 7603 can it be restored?
Voltage selector Is set for 120V and the regulation is set high. The readings are with all boards plugged in. With the vertical Amp out the -50V supply is -50V and can be adjusted for -50.000V. The vo
Voltage selector Is set for 120V and the regulation is set high. The readings are with all boards plugged in. With the vertical Amp out the -50V supply is -50V and can be adjusted for -50.000V. The vo
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By
Eric
· #165511
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A sick 7603 can it be restored?
That is very true. I am going to get it on the bench again tonight I have a sneaking suspicion I have a massive ripple problem given what I saw on the scope last night. I was able to confirm that the
That is very true. I am going to get it on the bench again tonight I have a sneaking suspicion I have a massive ripple problem given what I saw on the scope last night. I was able to confirm that the
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By
Eric
· #165468
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vintageTEK scanned transformer drawings for 120-0998-01 and up
Thank you for the awesome information with the transformers!
Thank you for the awesome information with the transformers!
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By
Eric
· #165440
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A sick 7603 can it be restored?
Working on trying to breath life back in to a 7630 and this one is weird. Hooking it up to a current limited supply does not show a short. Without plugins it was drawing about .6 amps at the line. The
Working on trying to breath life back in to a 7630 and this one is weird. Hooking it up to a current limited supply does not show a short. Without plugins it was drawing about .6 amps at the line. The
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By
Eric
· #165439
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Craigslist; Lynchburg, VA: 7xxx Scope
The time bases look to be a 7B85 and a 7b10 if that is true then a 400 Mhz and 1Ghz time base.
The time bases look to be a 7B85 and a 7b10 if that is true then a 400 Mhz and 1Ghz time base.
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By
Eric
· #165218
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Looking for a readout board for a 7603
I have a 7603 with a readout board that wont show a trace and the readout is really scrambled. It is also showing mainly 9's across the top and bottom of the screen. Just seeing if there is out out th
I have a 7603 with a readout board that wont show a trace and the readout is really scrambled. It is also showing mainly 9's across the top and bottom of the screen. Just seeing if there is out out th
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By
Eric
· #165217
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Mr Carlson's Patreon and test tool designs - was Re: [TekScopes] enclosures for ESR meters
I have been a member of Paul’s patron since the beginning. Just to be transparent. I have seen this question asked many times. Paul’s response is usually the same. “He strongly recommends that you mak
I have been a member of Paul’s patron since the beginning. Just to be transparent. I have seen this question asked many times. Paul’s response is usually the same. “He strongly recommends that you mak
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By
Eric
· #165168
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Mr Carlson's Patreon and test tool designs - was Re: [TekScopes] enclosures for ESR meters
I am also a patron worth every sent. The devices are top notch. Paul wants people to make their own boards as a learning process. Extencive use of the toner transfer method.
I am also a patron worth every sent. The devices are top notch. Paul wants people to make their own boards as a learning process. Extencive use of the toner transfer method.
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By
Eric
· #165130
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Grey, blue or clear? filter colors
I am looking for some of the filters. I have a 7603 on the bench but the filter is almost black. I cant see the graticule at all with out the illumination turned on. My older one has a clear. Ill deff
I am looking for some of the filters. I have a 7603 on the bench but the filter is almost black. I cant see the graticule at all with out the illumination turned on. My older one has a clear. Ill deff
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By
Eric
· #165063
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Unique Scope Option
This 7603 has a green Phosphor tube. Not the P11 so it is even stranger. If a picture will help let me know ill be glad to post one.
This 7603 has a green Phosphor tube. Not the P11 so it is even stranger. If a picture will help let me know ill be glad to post one.
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By
Eric
· #165040
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Unique Scope Option
So I am rebuilding a fairly neglected 7603 that has been in storage for quite some time. I had to evict a few once living tenants. This one is a little curious and it has a smoked color implosion shie
So I am rebuilding a fairly neglected 7603 that has been in storage for quite some time. I had to evict a few once living tenants. This one is a little curious and it has a smoked color implosion shie
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By
Eric
· #165036
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Quick Calibration Question.
Thanks for this Sir this was exactly what I was looking for. Also good to know that the tubes arnt specked for full screen width and true spec is a reduced graticule size.
Thanks for this Sir this was exactly what I was looking for. Also good to know that the tubes arnt specked for full screen width and true spec is a reduced graticule size.
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By
Eric
· #164956
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Quick Calibration Question.
Nah the ones I am working on are 7000 Series. So nothing but scale readout. and yea it made scene. consistency is the impotent part.
Nah the ones I am working on are 7000 Series. So nothing but scale readout. and yea it made scene. consistency is the impotent part.
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By
Eric
· #164919
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