what scope to buy (looking at TDS2014) ?

R

Rodo

Guest
Hi all,

I'm looking to buy a better scope. My old one is a Hitachi V-212 (2 ch,
20MHz). I'll be using it to check signals in MPUs like the PIC18F series
(max speed 40MHz), serial eeproms and the like, no RF or high frequency
stuff.

I've used a Tektronix TDS3000 series at work, but I don't need a $5k scope
for myself. I'm looking for 4ch, 100MHz, color and light weight. I found the
TDS2014 to be reasonable but I'd like to keep my options open. Besides, we
need another scope at work and my boss finds this TDS2014 expensive. So , I
need to find something else for work anyhow.

Any suggestions on scopes ?


Thanks
 
In article <IjRkc.67451$G_.20666@nwrddc02.gnilink.net>,
"Rodo" <dsp1024@yahoo.com> wrote:

Hi all,

I'm looking to buy a better scope. My old one is a Hitachi V-212 (2 ch,
20MHz). I'll be using it to check signals in MPUs like the PIC18F series
(max speed 40MHz), serial eeproms and the like, no RF or high frequency
stuff.

I've used a Tektronix TDS3000 series at work, but I don't need a $5k scope
for myself. I'm looking for 4ch, 100MHz, color and light weight. I found the
TDS2014 to be reasonable but I'd like to keep my options open. Besides, we
need another scope at work and my boss finds this TDS2014 expensive. So , I
need to find something else for work anyhow.

Any suggestions on scopes ?


Thanks
Click to expand...
I bought the KIKUSUI COS6100M 100MHZ Oscilloscope from
http://www.surplusshed.com/pages/item/r1456.html
and it has been great!.

Al

--
There's never enough time to do it right the first time.......
 
On Sat, 01 May 2004 17:42:00 GMT, "Rodo" <dsp1024@yahoo.com> wrote:

Hi all,

I'm looking to buy a better scope. My old one is a Hitachi V-212 (2 ch,
20MHz). I'll be using it to check signals in MPUs like the PIC18F series
(max speed 40MHz), serial eeproms and the like, no RF or high frequency
stuff.

I've used a Tektronix TDS3000 series at work, but I don't need a $5k scope
for myself. I'm looking for 4ch, 100MHz, color and light weight. I found the
TDS2014 to be reasonable but I'd like to keep my options open. Besides, we
need another scope at work and my boss finds this TDS2014 expensive. So , I
need to find something else for work anyhow.

Any suggestions on scopes ?
Click to expand...
I have (and love) a TDS220 -- a 100 MHz, 2-ch B/W older sibling of the
TDS2014. Same sample rate and depth, fewer built-in functions. The
display resolution is "1/4 VGA" so understand that it's not as pretty as
a fast analog scope.

Only suggestion is to consider how often you'll need all four channels.
If you intend to use them as a "four-channel logic analyzer" you might
think about saving a few $$ by getting a two-channel version and picking
up an inexpensive logic analyzer like these at www.rockylogic.com.

--
Rich Webb Norfolk, VA
 
On Sat, 01 May 2004 17:42:00 GMT, "Rodo" <dsp1024@yahoo.com> wrote:

Hi all,

I'm looking to buy a better scope. My old one is a Hitachi V-212 (2 ch,
20MHz). I'll be using it to check signals in MPUs like the PIC18F series
(max speed 40MHz), serial eeproms and the like, no RF or high frequency
stuff.

I've used a Tektronix TDS3000 series at work, but I don't need a $5k scope
for myself. I'm looking for 4ch, 100MHz, color and light weight. I found the
TDS2014 to be reasonable but I'd like to keep my options open. Besides, we
need another scope at work and my boss finds this TDS2014 expensive. So , I
need to find something else for work anyhow.

Any suggestions on scopes ?


Thanks
Click to expand...
I have a 3052 and a heap of 2012's. They're both great. The 2012 has a
slightly more "analog scope" feel. It doesn't have the memory
(pre/post trigger span) or the cool DPO stuff, but most of the time
you can hardly tell the difference. I love my "personal" 2012 (the one
I stuck a "JL" sticker on before anybody else could.)

Do you need four channels? I rarely need more than 2.

John
 
"John Larkin" <jjlarkin@highlandSNIPtechTHISnologyPLEASE.com> schreef in
bericht news:7qv790t5dfcldpn9l14kttmqhbm107jvna@4ax.com...
On Sat, 01 May 2004 17:42:00 GMT, "Rodo" <dsp1024@yahoo.com> wrote:

Hi all,

I'm looking to buy a better scope. My old one is a Hitachi V-212 (2 ch,
20MHz). I'll be using it to check signals in MPUs like the PIC18F series
(max speed 40MHz), serial eeproms and the like, no RF or high frequency
stuff.

I've used a Tektronix TDS3000 series at work, but I don't need a $5k
scope
for myself. I'm looking for 4ch, 100MHz, color and light weight. I found
the
TDS2014 to be reasonable but I'd like to keep my options open. Besides,
we
need another scope at work and my boss finds this TDS2014 expensive. So ,
I
need to find something else for work anyhow.

Any suggestions on scopes ?


Thanks




I have a 3052 and a heap of 2012's. They're both great. The 2012 has a
slightly more "analog scope" feel. It doesn't have the memory
(pre/post trigger span) or the cool DPO stuff, but most of the time
you can hardly tell the difference. I love my "personal" 2012 (the one
I stuck a "JL" sticker on before anybody else could.)

Do you need four channels? I rarely need more than 2.
Click to expand...
Rarely indeed. That said, I find it strange that oscilloscopes
almost never have a trigger *output*. In that case you could
connect a second one and have your 4 channels.

--
Thanks, Frank.
(remove 'x' and 'invalid' when replying by email)
 
Hi Rodo,

If budget is a serious issue there are also the older 7704A "mainframe style"
Tek scopes. As long as the CRT is in good shape these are great. You can find
multi-channel modules to stick in there but you can also buy other modules and
change them per the needs of your project. The 7A26 module (2 channels each)
runs up to 200MHz. Then there are digital scope modules and even a few spectrum
analyzer modules.

The only downside is that they, of course, do not have that nice floppy drive or
RS232 port. So it's the good old camera for documentation. I was assured (with
pictures to prove it) in another thread that digital cameras do that nicely.

Oh, a warning here: If you have any kind of back problems and need to move your
scope, the 7704 is not the right choice. It is freaking heavy and huge.

Regards, Joerg
http://www.analogconsultants.com
 
Hello Frank,

You could use the trigger inputs in parallel when using a FET probe or something
like that. I have done that once to get more than four channels. The other
engineers thought that was weird, and they weren't happy about me using two
scopes.

Regards, Joerg
http://www.analogconsultants.com
 
Hi Rodo,

Forgot one thing: If you look into the Tek7000 series (7404A is just one type)
you also need a time base module. But these are rather inexpensive.

Regards, Joerg
http://www.analogconsultants.com
 
Rich Webb wrote:
On Sat, 01 May 2004 17:42:00 GMT, "Rodo" <dsp1024@yahoo.com> wrote:


Hi all,

I'm looking to buy a better scope. My old one is a Hitachi V-212 (2 ch,
20MHz). I'll be using it to check signals in MPUs like the PIC18F series
(max speed 40MHz), serial eeproms and the like, no RF or high frequency
stuff.

I've used a Tektronix TDS3000 series at work, but I don't need a $5k scope
for myself. I'm looking for 4ch, 100MHz, color and light weight. I found the
TDS2014 to be reasonable but I'd like to keep my options open. Besides, we
need another scope at work and my boss finds this TDS2014 expensive. So , I
need to find something else for work anyhow.

Any suggestions on scopes ?


I have (and love) a TDS220 -- a 100 MHz, 2-ch B/W older sibling of the
TDS2014. Same sample rate and depth, fewer built-in functions. The
display resolution is "1/4 VGA" so understand that it's not as pretty as
a fast analog scope.

Only suggestion is to consider how often you'll need all four channels.
If you intend to use them as a "four-channel logic analyzer" you might
think about saving a few $$ by getting a two-channel version and picking
up an inexpensive logic analyzer like these at www.rockylogic.com.
Click to expand...

I had the same thought when I was scope shopping (for my home bench) and
several folks here convinced me of the opposite--that I'd rather have 4
channels than 2 plus a logic analyzer. Actually at that time I was
considering the Agilent 2+16 scope.

I wound up buying a TDS3014, and I'm happy I did. The 10k vs. 2k memory
depth compared to the 2000 series is preferrable, as are the additional
built in measurements. And I find 4 good analog channels more useful
than a logic analyzer, for micro stuff. For a full microprocessor with
bus peripherals, I might think differently.


Good day!



--
____________________________________
Christopher R. Carlen
Principal Laser/Optical Technologist
Sandia National Laboratories CA USA
crcarle@sandia.gov
 
It's not just memory depth that differentiates the TDS30xx series from
the T20xx series:

1) 9 bits vs 8 bits for 6dB more dynamic range
2) MUCH higher performance amplifiers, especially with inputs
overdriven, important if you want to look at switching waveforms for
example
3) MUCH higher CMRR. TDS20xx series is almost impossible to use in
the presence of much noise...practically useless for switchmode
design, for example

TDS20xx are good value, but I'd sooner have a 2 channel TDS30xx than a
4 channel TDS20xx, just to make one comparison.

Paul Mathews

Chris Carlen <crcarle@BOGUS.sandia.gov> wrote in message news:<c75m98064c@news2.newsguy.com>...
Rich Webb wrote:
On Sat, 01 May 2004 17:42:00 GMT, "Rodo" <dsp1024@yahoo.com> wrote:


Hi all,

I'm looking to buy a better scope. My old one is a Hitachi V-212 (2 ch,
20MHz). I'll be using it to check signals in MPUs like the PIC18F series
(max speed 40MHz), serial eeproms and the like, no RF or high frequency
stuff.

I've used a Tektronix TDS3000 series at work, but I don't need a $5k scope
for myself. I'm looking for 4ch, 100MHz, color and light weight. I found the
TDS2014 to be reasonable but I'd like to keep my options open. Besides, we
need another scope at work and my boss finds this TDS2014 expensive. So , I
need to find something else for work anyhow.

Any suggestions on scopes ?


I have (and love) a TDS220 -- a 100 MHz, 2-ch B/W older sibling of the
TDS2014. Same sample rate and depth, fewer built-in functions. The
display resolution is "1/4 VGA" so understand that it's not as pretty as
a fast analog scope.

Only suggestion is to consider how often you'll need all four channels.
If you intend to use them as a "four-channel logic analyzer" you might
think about saving a few $$ by getting a two-channel version and picking
up an inexpensive logic analyzer like these at www.rockylogic.com.


I had the same thought when I was scope shopping (for my home bench) and
several folks here convinced me of the opposite--that I'd rather have 4
channels than 2 plus a logic analyzer. Actually at that time I was
considering the Agilent 2+16 scope.

I wound up buying a TDS3014, and I'm happy I did. The 10k vs. 2k memory
depth compared to the 2000 series is preferrable, as are the additional
built in measurements. And I find 4 good analog channels more useful
than a logic analyzer, for micro stuff. For a full microprocessor with
bus peripherals, I might think differently.


Good day!
Click to expand...
 
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