14 Feb
2007
14 Feb
'07
4:34 p.m.
Hey all,
I just missed out on a Tek 7904 scope (four trace) with four plug-ins for
$299. Was that a deal? The plugins were 7A26 7A18 7CTIN and 7B53A.
Looks like a 500mhz scope, but with plugins good for 200mhz and a curve
tracer.
Are plugins for that scope readily avaiable and reasonably priced?
-Tom (my real name) Peters.
[Philosophy] "I shall cheerfully bear the reproach of having
descended below the dignity of history." --Lord Macaulay.
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square
EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
15 Feb
15 Feb
9:28 a.m.
On Feb 14, 2007, at 7:34 PM, Tom Peters wrote:
I just missed out on a Tek 7904 scope (four trace)
with four plug-
ins for $299. Was that a deal? The plugins were 7A26 7A18 7CTIN and
7B53A.
Yes, that was a pretty decent deal, especially if you don't have
to pay to ship it. Assuming it's functional of course. They've been
known to go for less, especially if they're all beaten up, but if
it's in good shape a 7904 can easily fetch $299.
Looks like a 500mhz scope, but with plugins good for
200mhz and a
curve tracer.
Umm...the curve tracer (7CT1N probably) came with it?? That
would've been a *serious* score then. That plugin alone typically
goes for $150-300.
Are plugins for that scope readily avaiable and
reasonably priced?
Yes, they're all over the place. There are some really neat ones
available for 7000-series scopes, too...Differential amplifiers,
logic analyzers, spectrum analyzers, the aforementioned curve tracer,
all sorts of stuff. It's a fantastic platform.
-Dave
--
Dave McGuire
Port Charlotte, FL
3:52 p.m.
At 12:28 PM 2/15/2007 -0500, you wrote:
I'm wondering if there's a list somewhere of just what plugins I can drool
over and/or search for. I'm not having any luck phrasing my search properly
so far. Like maybe a channel input amp that will give me better bandwidth
so I can do some VHF/UHF with it. I hear that the 7A26 is good up to 200
mHz? Is that right?
On Feb 14, 2007, at 7:34 PM, Tom Peters wrote:
I went back to them and countered with $240. I won the deal and will pay
$240 plus fiddy-two bucks to ship it. Woohoo!
I just missed out on a Tek 7904 scope (four trace)
with four plug- ins
for $299. Was that a deal? The plugins were 7A26 7A18 7CTIN and
7B53A.
Yes, that was a pretty decent deal, especially if you don't have
to pay to ship it. Assuming it's functional of course. They've been
known to go for less, especially if they're all beaten up, but if
it's in good shape a 7904 can easily fetch $299. Looks like a
500mhz scope, but with plugins good for 200mhz and a
curve tracer.
Umm...the curve tracer (7CT1N probably) came with it?? That
would've been a *serious* score then. That plugin alone typically
goes for $150-300.
Are plugins for that scope readily avaiable and
reasonably priced?
Yes, they're all over the place. There are some really neat ones
available for 7000-series scopes, too...Differential amplifiers,
logic analyzers, spectrum analyzers, the aforementioned curve tracer,
all sorts of stuff. It's a fantastic platform. -Dave
--
Dave McGuire
Port Charlotte, FL
[Philosophy] ". . . a boss who is forced to part a man's hair with a
wrench has failed at some point." Heinlein: Podkayne, quoting her
mother, _Podkayne of Mars_
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square
EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
4:30 p.m.
Tom Peters wrote:
At 12:28 PM 2/15/2007 -0500, you wrote:
I'm wondering if there's a list somewhere of just what plugins I can
drool over and/or search for. I'm not having any luck phrasing my
search properly so far. Like maybe a channel input amp that will give
me better bandwidth so I can do some VHF/UHF with it. I hear that the
7A26 is good up to 200 mHz? Is that right?
Yup, correct. Go to http://www.caip.rutgers.edu/~kahrs/testeq/7000.html
for tables and pix of 7000 series stuff.
The 7A29 is a single channel 1GHz plugin, 7B92A or 7B10/7B15 timebases.
The S4/7S11/7T11 combo is cool if you want a10+GHz sampling capability.
I have a 7104 with 7A29s, 7B10/15 and S4/7S11/7T11 and it is pretty cool
70s technology.
Don North
AK6DN
On Feb 14, 2007, at 7:34 PM, Tom Peters wrote:
I went back to them and countered with $240. I won the deal and will
pay $240 plus fiddy-two bucks to ship it. Woohoo!
I just missed out on a Tek 7904 scope (four
trace) with four plug-
ins for $299. Was that a deal? The plugins were 7A26 7A18 7CTIN and
7B53A.
Yes, that was a pretty decent deal, especially if you don't have
to pay to ship it. Assuming it's functional of course. They've been
known to go for less, especially if they're all beaten up, but if
it's in good shape a 7904 can easily fetch $299. Looks
like a 500mhz scope, but with plugins good for 200mhz and a
curve tracer.
Umm...the curve tracer (7CT1N probably) came with it?? That
would've been a *serious* score then. That plugin alone typically
goes for $150-300.
Are plugins for that scope readily avaiable and
reasonably priced?
Yes, they're all over the place. There are some really neat ones
available for 7000-series scopes, too...Differential amplifiers,
logic analyzers, spectrum analyzers, the aforementioned curve tracer,
all sorts of stuff. It's a fantastic platform.
17 Feb
17 Feb
9:05 a.m.
At 04:30 PM 2/15/2007 -0800, you wrote:
Tom Peters wrote:
Cool! Thanks.
At 12:28 PM 2/15/2007 -0500, you wrote:
I'm wondering if there's a list somewhere of just what plugins I can
drool over and/or search for. I'm not having any luck phrasing my search
properly so far. Like maybe a channel input amp that will give me better
bandwidth so I can do some VHF/UHF with it. I hear that the 7A26 is good
up to 200 mHz? Is that right?
Yup, correct. Go to http://www.caip.rutgers.edu/~kahrs/testeq/7000.html
for tables and pix of 7000 series stuff. On Feb 14, 2007, at 7:34 PM, Tom Peters wrote:
I went back to them and countered with $240. I won the deal and will pay
$240 plus fiddy-two bucks to ship it. Woohoo!
I just missed out on a Tek 7904 scope (four trace)
with four plug- ins
for $299. Was that a deal? The plugins were 7A26 7A18 7CTIN and
7B53A.
Yes, that was a pretty decent deal, especially if you don't have
to pay to ship it. Assuming it's functional of course. They've been
known to go for less, especially if they're all beaten up, but if
it's in good shape a 7904 can easily fetch $299. Looks like
a 500mhz scope, but with plugins good for 200mhz and a
curve tracer.
Umm...the curve tracer (7CT1N probably) came with it?? That
would've been a *serious* score then. That plugin alone typically
goes for $150-300.
Are plugins for that scope readily avaiable and
reasonably priced?
Yes, they're all over the place. There are some really neat ones
available for 7000-series scopes, too...Differential amplifiers,
logic analyzers, spectrum analyzers, the aforementioned curve tracer,
all sorts of stuff. It's a fantastic platform. The 7A29 is a single channel 1GHz plugin, 7B92A or
7B10/7B15 timebases.
Never having owned a decent scope before, please help me out a little.
Well, I do have a 60mhz Hickok that's really beat up.
If I want to get up to 500 MHz (70 cm is 400+ right?) I could try to locate
a 7A29, or maybe there's another cheeper one? That's question number 1.
2. Sounds like one definitely has to have a better timebase plugin, you
seem to be implying that, to make use of the bandwidth of the 7A29, right?
Which one, you list three. Or any of the above?
The S4/7S11/7T11 combo is cool if you want a10+GHz
sampling capability.
Yikes, I'm not sure I would know what to do with 10 GHz
capability.
I have a 7104 with 7A29s, 7B10/15 and S4/7S11/7T11 and
it is pretty cool
70s technology.
Don North
AK6DN
[Government]"No man's life, liberty, or property is safe while the
legislature is in session." (Judge Gideon J. Tucker, 1866.)
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square
EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
12:46 p.m.
If I want to get up to 500 MHz (70 cm is 400+ right?)
I could try to locate
a 7A29, or maybe there's another cheeper one? That's question number 1.
2. Sounds like one definitely has to have a better timebase plugin, you
seem to be implying that, to make use of the bandwidth of the 7A29, right?
Which one, you list three. Or any of the above?
I suggest you try to locate a older tek catalog from the 1980s. They
are excellent sources of information.
As far as amplifier plug ins, you could use a 7A19 also as they go to 600 MHz.
7A29 DC to 1 GHz
7A19 DC to 600 MHz
7A24 DC to 400 MHz Dual Trace
All these are 50 ohm input by my 1987 catalog.
Time Bases are the
7B80 Triggering to 400 MHz Basic Delayed Time Base
7B85 Triggering to 400 MHz Delta Delaying Time Base
7B92A Triggering to 500 MHz Dual Time Base, Delayed and Delaying
I think the 7B85 is the most common and the most sought after time base.
Another fun thing about the Tektronix catalogs is their original 1987
asking prices
7904A Mainframe $10,115 (no plugins)
7A29 $3,325
7A19 $2,895
7A24 $2,655
7B80 $1,660
7B85 $1,940 This plug was in high demand on the used market
7B92A $3,745
7CT1N $1,785
7A26 $2,350 This plug was in high demand on the used market
7A18 $1,465
7B53A $1,860 This plug was in high demand on the used market
When I was selling Tek used equipment 10-15 years ago I felt lucky to
get 10% of those prices. I bet it is a lot cheaper now.
Nice scopes. I regretted getting rid of my 7603.
Paxton
--
Paxton Hoag
Astoria, OR
USA
12:51 p.m.
In article <ded268c40702171246u2bacda3dk8c904d36482e8c38 at mail.gmail.com>,
"Paxton Hoag" <innfoclassics at gmail.com> writes:
I suggest you try to locate a older tek catalog from
the 1980s. They
are excellent sources of information.
The Boat Anchor Manual Archive has on its Tektronix page
<http://bama.sbc.edu/tektroni.htm> the catalogs for
1959, 1969, 1977, 1982, 1985, 1989, 1993, and 1998.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
9:36 p.m.
In article <E1HIWWu-0001qq-00 at xmission.xmission.com>,
Richard <legalize at xmission.com> writes:
The Boat Anchor Manual Archive has on its Tektronix
page
<http://bama.sbc.edu/tektroni.htm> the catalogs for
1959, 1969, 1977, 1982, 1985, 1989, 1993, and 1998.
Apparently none of those links are working except the 1959 catalog. I
have downloaded the 1982 catalog from them before but they don't have
it online anymore. I can upload the 1982 catalog somewhere.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
3:32 p.m.
>The 7A29 is a single channel 1GHz plugin, 7B92A or
7B10/7B15 timebases.
It's been a while since I used any 7000-series stuff [1] but IIRC the
timebase to look for is the 7B92A. It's a dual timebase, you can use one
timebase to delay the other (which is very useful) and it only takes up
one slot in the 'scope.
[1] There was a 7904 and an assortment of plugins in the lab where I did
my Ph.D. I was the only person ever to use it, really, everybody else
thought it was very old-fashioned. It was, but it's a darn good 'scope.
I'd like one for home in some ways _but_ they are full of custom silicon
and Tektronix no longer supply spares. If a chip fails you've got problems...
Never having owned a decent scope before, please help me out a little.=20
Well, I do have a 60mhz Hickok that's really beat up.
If I want to get up to 500 MHz (70 cm is 400+ right?) I could try to loca=
te=20
Well, if you want to look ot the output of a 70 cms transmitter (which is
about 430MHz, at least in the UK), you really want to be able to see at
least the 3rd harmonic. Which means going up to 1.2GHz+.
However, the most useful instrument IMHO for setting up a transmitter is
an RF spectrum analyser (then you can see just what you're shoving out
out-of-band). Yes, you can get spectrum analyser plug-ins for the 7904
(they have 7Lxx modul numbers, where xx varies with the band they cover),
but you want to be sitting down when you hear the price!.
The S4/7S11/7T11 combo is cool if you want a10+GHz
sampling capability.
Yikes, I'm not sure I would know what to do with 10 GHz
capability.
3:40 p.m.
Tom Peters wrote:
Never having owned a decent scope before, please help me out a little.
Well, I do have a 60mhz Hickok that's really beat up.
If I want to get up to 500 MHz (70 cm is 400+ right?) I could try to
locate a 7A29, or maybe there's another cheeper one? That's question
number 1.
2. Sounds like one definitely has to have a better timebase plugin,
you seem to be implying that, to make use of the bandwidth of the
7A29, right? Which one, you list three. Or any of the above?
For my 7104 1GHz scope, I have 2x7A29 for vertical inputs, and a
7B10/7B15 timebase pair for horizontal (standard + delayed sweep).
For a 7904A, 2x7A19 is all that is really needed for vertical (it is a
single 50ohm input 500MHz amp) plus a 7B92A gives you normal + delayed
sweep. This leaves an extra horizontal slot open.
7A19s are usually readily available on eBay, and 7B92As are pretty
common as well.
15 Feb
15 Feb
4:32 p.m.
On 2/15/07, Tom Peters <tpeters at mixcom.com> wrote:
I'm wondering if there's a list somewhere of
just what plugins I can drool
over and/or search for. I'm not having any luck phrasing my search properly
so far. Like maybe a channel input amp that will give me better bandwidth
so I can do some VHF/UHF with it. I hear that the 7A26 is good up to 200
mHz? Is that right?
Should be easy to find lots of info on the Tek 7000 series:
http://www.tek.com/Measurement/Support/faq/history.html
http://www.caip.rutgers.edu/~kahrs/testeq/7000.html
http://www.slack.com/TE/Tillman/Tek7000-Tillman.html
16 Feb
16 Feb
12:18 a.m.
On Feb 15, 2007, at 6:52 PM, Tom Peters wrote:
I went back to them and countered with $240. I won the deal and
will pay $240 plus fiddy-two bucks to ship it. Woohoo!
SCORE! :-)
I just missed out on a Tek 7904 scope (four trace)
with four
plug- ins for $299. Was that a deal? The plugins were 7A26 7A18
7CTIN and
7B53A.
Yes, that was a pretty decent deal, especially if you don't have
to pay to ship it. Assuming it's functional of course. They've been
known to go for less, especially if they're all beaten up, but if
it's in good shape a 7904 can easily fetch $299. I'm wondering if there's a list somewhere of
just what plugins I
can drool over and/or search for. I'm not having any luck phrasing
my search properly so far. Like maybe a channel input amp that will
give me better bandwidth so I can do some VHF/UHF with it. I hear
that the 7A26 is good up to 200 mHz? Is that right?
I see others have already answered these questions...So I'll just
reiterate: SCORE!
-Dave
--
Dave McGuire
Port Charlotte, FL
12:29 a.m.
If you need parts or service help, hang out here;
http://tech.groups.yahoo.com/group/TekScopes/
Several old time tekies hang out there, not to mention nearly 3000
members to help.
I really like the 7000 series scopes.
Paxton Hoag
Astoria, OR
USA
17 Feb
17 Feb
8:33 a.m.
Thanks very much to Don, Paxton, Dave, and particularly Glen S for the list
of links. I'm awaiting delivery and hoping it turns out to be all it was
advertised as. The traces on the photos looked clean and bright, so
hopefully it's in good shape.
-T
At 03:18 AM 2/16/2007 -0500, you wrote:
On Feb 15, 2007, at 6:52 PM, Tom Peters wrote:
I went back to them and countered with $240. I won the deal and
will pay $240 plus fiddy-two bucks to ship it. Woohoo!
SCORE! :-)
[Faith] Many people want the benefits of the church, but choose not
to be of benefit to the church. -- Author Unknown
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square
EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
I just missed out on a Tek 7904 scope (four trace) with
four
plug- ins for $299. Was that a deal? The plugins were 7A26 7A18
7CTIN and
7B53A.
Yes, that was a pretty decent deal, especially if you don't have
to pay to ship it. Assuming it's functional of course. They've been
known to go for less, especially if they're all beaten up, but if
it's in good shape a 7904 can easily fetch $299. I'm wondering if there's a list somewhere
of just what plugins I
can drool over and/or search for. I'm not having any luck phrasing
my search properly so far. Like maybe a channel input amp that will
give me better bandwidth so I can do some VHF/UHF with it. I hear
that the 7A26 is good up to 200 mHz? Is that right?
I see others have already answered these questions...So I'll just
reiterate: SCORE!
-Dave
--
Dave McGuire
Port Charlotte, FL
1:05 p.m.
On 2/14/07, Tom Peters <tpeters at mixcom.com> wrote:
Hey all,
I just missed out on a Tek 7904 scope (four trace) with four plug-ins for
$299. Was that a deal? The plugins were 7A26 7A18 7CTIN and 7B53A.
Looks like a 500mhz scope, but with plugins good for 200mhz and a curve
tracer.
Are plugins for that scope readily avaiable and reasonably priced?
-Tom (my real name) Peters.
[Philosophy] "I shall cheerfully bear the reproach of having
descended below the dignity of history." --Lord Macaulay.
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square
EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User
385531
hey, since the listing should be over by now (since you said you won
it)...perhaps you wouldn't mind sending us a link to the listing so we can
all drool over exactly what you got? :P :D :)
6477
days inactive
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14 comments
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ak6dn＠mindspring.com -
ard＠p850ug1.demon.co.uk -
glen.slick＠gmail.com -
hexstar＠gmail.com -
innfoclassics＠gmail.com -
legalize＠xmission.com -
mcguire＠neurotica.com -
tpeters＠mixcom.com