Jon Yaeger wrote:
in article , Bret Ludwig
at wrote on 8/22/05 3:59 PM:


I had a couple of doghouse blue Tek scopes I gave away to a guy, who
wound up parting them out and building some very crude tube audio stuff
he charged a lot of money for to gullible idiots in St. Louis. That
town appears to be a haven for audio con men.

The old Tek scopes are either too much work to keep going, or have
mostly been used so heavily they are no longer usable. There are no
more parts for DESIRABLE Tek scopes! Tek has not made an actual
oscilloscope in nearly ten years and the last ones (the TAS series)
were crude and nearly unusable.

Large quantities of certain parts do exist-because either those are
the parts that don't go bad or they are for stuff you don't want
anyway.



Actually, old Tek scopes have some great parts that lend themselves to happy
employment in some really nice tube designs . . . .

Indeed! ;-)
The power transformers from the older tubed beasts are great for
projects,if you can find any info on them,or else sit with the DMM and a
pencil for a while untill you've got it..(a variac is helpful too!)
I scrapped one that was beyond help,along with a HP that I couldn't
figure out,tried/tested everything under the sun,finally gave up.
Tons of good tubes,sockets,etc. in there too!

"Ptaylor" wrote in message
...
Jon Yaeger wrote:
in article , Bret
Ludwig
at wrote on 8/22/05 3:59 PM:


I had a couple of doghouse blue Tek scopes I gave away to a guy, who
wound up parting them out and building some very crude tube audio stuff
he charged a lot of money for to gullible idiots in St. Louis. That
town appears to be a haven for audio con men.

The old Tek scopes are either too much work to keep going, or have
mostly been used so heavily they are no longer usable. There are no
more parts for DESIRABLE Tek scopes! Tek has not made an actual
oscilloscope in nearly ten years and the last ones (the TAS series)
were crude and nearly unusable.

Large quantities of certain parts do exist-because either those are
the parts that don't go bad or they are for stuff you don't want
anyway.



Actually, old Tek scopes have some great parts that lend themselves to
happy
employment in some really nice tube designs . . . .

Indeed! ;-)
The power transformers from the older tubed beasts are great for
projects,if you can find any info on them,or else sit with the DMM and a
pencil for a while untill you've got it..(a variac is helpful too!)
I scrapped one that was beyond help,along with a HP that I couldn't figure
out,tried/tested everything under the sun,finally gave up.
Tons of good tubes,sockets,etc. in there too!


I've got a Power Transformer out of an old Tek Scope - 545 I think or maybe
an earlier model. The model numbers are all starting to run together in the
ole noggin (hey I'm getting old!) and it's been like 5 years since I had
this thing. Anyway, it was one of the big dinosaurs. The scope worked fine
but I had no room for it, so I stripped it. May have some other parts
floating around too. The transformer does have a part number I can supply.
If anyone is interested, let me know. "I" don't need it. Not sure what
shipping would be, this sucker is heavy. I also have 2 manuals for 2
separate models of the 422 scope - both in fairly decent shape.

Behold, clf scribed on tube chassis:


I've got a Power Transformer out of an old Tek Scope - 545 I think or
maybe an earlier model.

Hey, I actually have specs for that one! :-)

--
Gregg "t3h g33k"
http://geek.scorpiorising.ca
*Ratings are for transistors, tubes have guidelines*

Gregg wrote:

Behold, clf scribed on tube chassis:

I've got a Power Transformer out of an old Tek Scope - 545 I think or
maybe an earlier model.

Hey, I actually have specs for that one! :-)


I have a Tektronix CRT and Shield:

The CRT part# is 154-0531-00
The shield part# is 337-1021-01
and the power transformer:
The transformer part# is 120-0575-00.

I believe they are from a 561 rack mount scope I scrapped for the
high voltage supply to fix a portable scope. I also have the power
transformer from the same scope.

--
Link to my "Computers for disabled Veterans" project website deleted
after threats were telephoned to my church.

Michael A. Terrell
Central Florida

Behold, Michael A. Terrell scribed on tube chassis:

Gregg wrote:

Behold, clf scribed on tube chassis:

I've got a Power Transformer out of an old Tek Scope - 545 I think or
maybe an earlier model.

Hey, I actually have specs for that one! :-)


I have a Tektronix CRT and Shield:

The CRT part# is 154-0531-00
The shield part# is 337-1021-01
and the power transformer:
The transformer part# is 120-0575-00.

I believe they are from a 561 rack mount scope I scrapped for the
high voltage supply to fix a portable scope. I also have the power
transformer from the same scope.

120-0575... Hmmm, my schema shows different #. Must be a 561 then.

--
Gregg "t3h g33k"
http://geek.scorpiorising.ca
*Ratings are for transistors, tubes have guidelines*

clf wrote:
"Ptaylor" wrote in message
...

Jon Yaeger wrote:

in article , Bret
Ludwig
at wrote on 8/22/05 3:59 PM:



I had a couple of doghouse blue Tek scopes I gave away to a guy, who
wound up parting them out and building some very crude tube audio stuff
he charged a lot of money for to gullible idiots in St. Louis. That
town appears to be a haven for audio con men.

The old Tek scopes are either too much work to keep going, or have
mostly been used so heavily they are no longer usable. There are no
more parts for DESIRABLE Tek scopes! Tek has not made an actual
oscilloscope in nearly ten years and the last ones (the TAS series)
were crude and nearly unusable.

Large quantities of certain parts do exist-because either those are
the parts that don't go bad or they are for stuff you don't want
anyway.



Actually, old Tek scopes have some great parts that lend themselves to
happy
employment in some really nice tube designs . . . .

Indeed! ;-)
The power transformers from the older tubed beasts are great for
projects,if you can find any info on them,or else sit with the DMM and a
pencil for a while untill you've got it..(a variac is helpful too!)
I scrapped one that was beyond help,along with a HP that I couldn't figure
out,tried/tested everything under the sun,finally gave up.
Tons of good tubes,sockets,etc. in there too!



I've got a Power Transformer out of an old Tek Scope - 545 I think or maybe
an earlier model.

snip
I think that's the model that one of mine came
from(tranny#120-120)..I've collected 3-4 big Tek trannies over the last
few years.

I'm sorta looking for another Tek tranny for my projects,marked 120-296
(from Tek 564's),if anyone has a spare. I'm thinking if I can find
another,the pair will make nice power trannies for a couple of PP EL34
monoblocks. ;-)

"Ptaylor" wrote in message
...
clf wrote:
"Ptaylor" wrote in message
...

Jon Yaeger wrote:

in article , Bret
Ludwig
at wrote on 8/22/05 3:59 PM:



I had a couple of doghouse blue Tek scopes I gave away to a guy, who
wound up parting them out and building some very crude tube audio stuff
he charged a lot of money for to gullible idiots in St. Louis. That
town appears to be a haven for audio con men.

The old Tek scopes are either too much work to keep going, or have
mostly been used so heavily they are no longer usable. There are no
more parts for DESIRABLE Tek scopes! Tek has not made an actual
oscilloscope in nearly ten years and the last ones (the TAS series)
were crude and nearly unusable.

Large quantities of certain parts do exist-because either those are
the parts that don't go bad or they are for stuff you don't want
anyway.



Actually, old Tek scopes have some great parts that lend themselves to
happy
employment in some really nice tube designs . . . .

Indeed! ;-)
The power transformers from the older tubed beasts are great for
projects,if you can find any info on them,or else sit with the DMM and a
pencil for a while untill you've got it..(a variac is helpful too!)
I scrapped one that was beyond help,along with a HP that I couldn't
figure out,tried/tested everything under the sun,finally gave up.
Tons of good tubes,sockets,etc. in there too!



I've got a Power Transformer out of an old Tek Scope - 545 I think or
maybe an earlier model.

snip
I think that's the model that one of mine came from(tranny#120-120)..I've
collected 3-4 big Tek trannies over the last few years.

I'm sorta looking for another Tek tranny for my projects,marked 120-296
(from Tek 564's),if anyone has a spare. I'm thinking if I can find
another,the pair will make nice power trannies for a couple of PP EL34
monoblocks. ;-)

Mine has 120-140 on it. As I said, it was removed from a working unit. All I
did was cut most of the wires coming from the scope areas - off the "taps"
of the transformers. Otherwise it is in good shape.

clf