Re: [time-nuts] Oscope Tutorial

[Tom Van Baak]

> In sorting out my papers I found a HP Bench Briefs titled Basic Techniques of 
> Waveform Measurement
> Using an Oscilloscope published in 1980. It is an excellent article which I 
> have reproduced.

See also:

http://www.hparchive.com/Bench_Briefs/HP-Bench-Briefs-1980-03-04.pdf

The entire series is at:

http://www.hparchive.com/bench_briefs.htm

/tvb

- Original Message - 
From: "Perry Sandeen via time-nuts" 
To: 
Sent: Saturday, March 05, 2016 3:55 PM
Subject: [time-nuts] Oscope Tutorial


List,


Usedoscilloscopes have gotten to the price where us experimenters can 
affordexcellent ones at reasonable prices (my Tek 200 MHz dual bandwidth 
was<$200).


I wastrained how to use them in the military but many haven't that experience.


Insorting out my papers I found a HP Bench Briefs titled Basic Techniques 
ofWaveform Measurement Using an Oscilloscope published in 1980. It is 
anexcellent article which I have reproduced.


Anywanting a copy contact me off list at sandeenpa yat whahoey.commie after 
iststranslation.



Also would someone post this to the K04BB website? I couldn’t figure out to do 
it when I went there.



Regards,



Perrier 



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Re: [time-nuts] MTI 260-0624-D OCXO

[timenut]

Magnus,

In this case, the rattle is not of light weight pieces, but of a heavy object.
So, I am guessing that the outer oven broke off somehow. Won't really know
until and unless I open it up. The vendor probably won't want it back, but
they might, so I won't touch it until I hear from them.


Mike

> Hi,

> On 03/05/2016 10:45 PM, time...@metachaos.net wrote:
>> I got the replacement MTI 260-0624-D OCXO today.
>>
>> It rattles!

> I've seen that on one oscillator. I did a RMA and complained about the 
> maracas mode, which I had demonstrated to the rep. When it arrived they 
> wondered what that mean and the rep just smiled and ask them to pick it 
> up... and it rattle. Turns out that the way they soldered their ovens, 
> drops of solder could form and get loose, so they changed the process.

> Unfortunatly, it is also the failure mode of rough shipping/handling for 
> some oscillators.

> Cheers,
> Magnus

>> I didn't even bother trying to power it up. Not much point. I have not taken
>> it apart, but have notified the seller. I may disassemble this one as well,
>> depending on what the seller says.
>>
>> Mike
>>
>>
>>> I just received a 5Mhz OCXO from eBay (MTI 260-0624-D OCXO). After testing 
>>> it,
>>> it is clear that it is defective.
>>
>>> 1. It never heats up.
>>
>>> 2. The reference voltage is zero.
>>
>>> 3. Only noise is seen on the output pin.
>>
>>> I tested with a 12.54V, 2A supply voltage with around 30mV noise. That 
>>> should
>>> be sufficient to test.
>>
>>> All I was looking for was a 5Mhz signal whose frequency changed when the
>>> adjustment pin was either tied to ground or the reference voltage. Never got
>>> that far because I never go a signal at all.
>>
>>> The seller packed it well and shipped it promptly. I will see how he handles
>>> it.
>>
>>
>>> Mike
>>
>>> ___
>>> time-nuts mailing list -- time-nuts@febo.com
>>> To unsubscribe, go to 
>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>>> and follow the instructions there.
>>
>>
>>
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> and follow the instructions there.



-- 
Best regards,
 Timenutmailto:time...@metachaos.net

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[time-nuts] Oscope Tutorial

[Perry Sandeen via time-nuts]

List,


Usedoscilloscopes have gotten to the price where us experimenters can 
affordexcellent ones at reasonable prices (my Tek 200 MHz dual bandwidth 
was<$200).


I wastrained how to use them in the military but many haven't that experience.


Insorting out my papers I found a HP Bench Briefs titled Basic Techniques 
ofWaveform Measurement Using an Oscilloscope published in 1980. It is 
anexcellent article which I have reproduced.


Anywanting a copy contact me off list at sandeenpa yat whahoey.commie after 
iststranslation.


 
Also would someone post this to the K04BB website? I couldn’t figure out to do 
it when I went there.



Regards,



Perrier 


 
___
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and follow the instructions there.

Re: [time-nuts] MTI 260-0624-D OCXO

[Magnus Danielson]

Hi,

On 03/05/2016 10:45 PM, time...@metachaos.net wrote:

I got the replacement MTI 260-0624-D OCXO today.

It rattles!


I've seen that on one oscillator. I did a RMA and complained about the 
maracas mode, which I had demonstrated to the rep. When it arrived they 
wondered what that mean and the rep just smiled and ask them to pick it 
up... and it rattle. Turns out that the way they soldered their ovens, 
drops of solder could form and get loose, so they changed the process.


Unfortunatly, it is also the failure mode of rough shipping/handling for 
some oscillators.


Cheers,
Magnus


I didn't even bother trying to power it up. Not much point. I have not taken
it apart, but have notified the seller. I may disassemble this one as well,
depending on what the seller says.

Mike



I just received a 5Mhz OCXO from eBay (MTI 260-0624-D OCXO). After testing it,
it is clear that it is defective.



1. It never heats up.



2. The reference voltage is zero.



3. Only noise is seen on the output pin.



I tested with a 12.54V, 2A supply voltage with around 30mV noise. That should
be sufficient to test.



All I was looking for was a 5Mhz signal whose frequency changed when the
adjustment pin was either tied to ground or the reference voltage. Never got
that far because I never go a signal at all.



The seller packed it well and shipped it promptly. I will see how he handles
it.




Mike



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Re: [time-nuts] MTI 260-0624-D OCXO

[Bob Camp]

Hi

Where (what continent) was the seller located?

Bob


> On Mar 5, 2016, at 4:45 PM, time...@metachaos.net wrote:
> 
> I got the replacement MTI 260-0624-D OCXO today.
> 
> It rattles!
> 
> I didn't even bother trying to power it up. Not much point. I have not taken
> it apart, but have notified the seller. I may disassemble this one as well,
> depending on what the seller says.
> 
> Mike
> 
> 
>> I just received a 5Mhz OCXO from eBay (MTI 260-0624-D OCXO). After testing 
>> it,
>> it is clear that it is defective.
> 
>>   1. It never heats up.
> 
>>   2. The reference voltage is zero.
> 
>>   3. Only noise is seen on the output pin.
> 
>> I tested with a 12.54V, 2A supply voltage with around 30mV noise. That should
>> be sufficient to test.
> 
>> All I was looking for was a 5Mhz signal whose frequency changed when the
>> adjustment pin was either tied to ground or the reference voltage. Never got
>> that far because I never go a signal at all.
> 
>> The seller packed it well and shipped it promptly. I will see how he handles
>> it.
> 
> 
>> Mike
> 
>> ___
>> time-nuts mailing list -- time-nuts@febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
> 
> 
> 
> -- 
> Best regards,
> Timenutmailto:time...@metachaos.net
> 
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.

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Re: [time-nuts] MTI 260-0624-D OCXO

[timenut]

I got the replacement MTI 260-0624-D OCXO today.

It rattles!

I didn't even bother trying to power it up. Not much point. I have not taken
it apart, but have notified the seller. I may disassemble this one as well,
depending on what the seller says.

Mike


> I just received a 5Mhz OCXO from eBay (MTI 260-0624-D OCXO). After testing it,
> it is clear that it is defective.

>1. It never heats up.

>2. The reference voltage is zero.

>3. Only noise is seen on the output pin.

> I tested with a 12.54V, 2A supply voltage with around 30mV noise. That should
> be sufficient to test.

> All I was looking for was a 5Mhz signal whose frequency changed when the
> adjustment pin was either tied to ground or the reference voltage. Never got
> that far because I never go a signal at all.

> The seller packed it well and shipped it promptly. I will see how he handles
> it.


> Mike

> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.



-- 
Best regards,
 Timenutmailto:time...@metachaos.net

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