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starr36
Platinum Member

Canada
1172 Posts
Posted - 09/04/2008 :  02:05:09  Show Profile  Visit starr36's Homepage  Reply with Quote
Can anyone say, for purposes of debugging pedals (wink) how much should one pay for a used scope and or a signal generator?

Would a college auction be a good place? How about eBay? With so much being digital, maybe there is a soft market for this kind of "old tech" testing equipment???

Laurie
Double Platinum Member

Canada
4854 Posts
Posted - 09/04/2008 :  02:10:02  Show Profile  Visit Laurie's Homepage  Reply with Quote
Scope - 1980s Tektronix dual beam CRO on ebay (local pickup) = $100

Signal generator - use an audio program and output the tones on your PC sound card
Edited by - Laurie on 09/04/2008 02:10:49
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starr36
Platinum Member

Canada
1172 Posts
Posted - 09/04/2008 :  02:46:28  Show Profile  Visit starr36's Homepage  Reply with Quote
Thanks... I was hoping i could get by for 'less than a honey'.
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Dr. Bob
Moderator

Australia
6593 Posts
Posted - 09/04/2008 :  08:16:12  Show Profile  Visit Dr. Bob's Homepage  Reply with Quote
quote:
Originally posted by Laurie

Scope - 1980s Tektronix dual beam CRO on ebay (local pickup) = $100

Signal generator - use an audio program and output the tones on your PC sound card


And isolate (AC couple) the inner active wire/s with at least a 0.1uf 100V poly cap.

This will isolate, & stop any DC plops, when you are testing stuff.
And it's just safe work practice.

Regards Dr. Bob
Edited by - Dr. Bob on 09/04/2008 08:45:56
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tony
Bronze Member

United Kingdom
142 Posts
Posted - 09/06/2008 :  12:25:52  Show Profile  Reply with Quote
There seem to be some nice DMMs with built in oscilloscopes now. I don't know how functional these are but surely they must be OK for pedal problem solving. Sadly, all the nice looking Tektronixes, etc seem to go for well over �100.00 on ebay UK.
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starr36
Platinum Member

Canada
1172 Posts
Posted - 09/09/2008 :  01:19:43  Show Profile  Visit starr36's Homepage  Reply with Quote
quote:
Originally posted by tony

There seem to be some nice DMMs with built in oscilloscopes now.
I don't know how functional these are but surely they must be OK for
pedal problem solving. Sadly, all the nice looking Tektronixes,
etc seem to go for well over �100.00 on ebay UK.


Can you give us some examples of the handheld oscilloscopes?
Have you or anyone else had a chance to look at it?

When the Piano Tech came to tune my piano, he had this cool tuning
software on his 'ancient' PalmIII. It 'learned' how to tune my piano
and would calculate how much overtightening the tech had to do to tune it.
He was done in 45minutes!...

I wonder if there's any possibility of that kind of sw for a PC
and or ... what is out there?
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