Oscilloscope needed

[therecordingart]

I have a GW Instek GOS-622G that I've been thinking about selling. I've had it a little over a year, used it for a few homework assignments, but I want a picoscope instead.

If anyone is interested...

[Jussi]

I've been using this sofware with my audio interface but yeah maybe a real oscillosope would be better 
http://www.zeitnitz.de/Christian/scope_en

[chromesphere]

I was looking into this recently.  I heard about these cheap scopes from siglent.  Thought they were probably rubbish but from looking into it further seems that siglent are the manufacturers of rigol and a few other brand scopes.  I also heard its not the scope thats important but the software, and it turns out the software is pretty good on these as well.  Here is a link to Dave Jones' short video on a siglent oscilloscope:

http://www.youtube.com/watch?v=w6MdhoV03e4

You can get the 50mhz model (in oz at least) for 280 bucks, 7 inch display, and 500m samples /s which i think are decent specs?  I dont even OWN an oscilloscope so dont take this info as an experienced perspective on it.

http://www.ebay.com.au/itm/Siglent-SDS1052DL-7-50MHZ-500MSa-s-32Kpts-Digital-Storage-Oscilloscope-/170997697398?pt=AU_B_I_Electrical_Test_Equipment&hash=item27d041cb76

Good luck in your search
Paul

[J0K3RX]

This is cute...
http://gizmodo.com/5252774/diy-pocket+sized-oscilloscope-kit-for-33

[phizone]

This is cute...
http://gizmodo.com/5252774/diy-pocket+sized-oscilloscope-kit-for-33

A buddy of mine built one of those a few years ago. Not sure how useful it was for him, but he had fun building it. Unfortunately, It looks like Seeed Studio no longer sells the DIY kit for those, but they do sell them assembled. They also have the Nano v3 with a 2.8" color TFT screen.
http://www.seeedstudio.com/wiki/DSO_Nano_v3

[chromesphere]

Are these anything like the pocket nano oscilloscopes on ebay?  I hate to mention him again, but dave jones' did a teardown of one of these:

http://www.youtube.com/watch?v=3im97Z7ceNI

Paul

[Thunderthief]

Go to a Hamfest.  You can pick up a functional analog scope for peanuts. You do not need much bandwidth for audio circuitry.  Learn on an inexpensive 20Mhz analog scope then decide later whether a more expensive scope is worth the steep price tag for your bench.    Oscilloscopes are handy but expensive and you can easily dump a lot of money into one loaded with features you won't use very often if at all.

[amptramp]

Go to a Hamfest.  You can pick up a functional analog scope for peanuts. You do not need much bandwidth for audio circuitry.  Learn on an inexpensive 20Mhz analog scope then decide later whether a more expensive scope is worth the steep price tag for your bench.    Oscilloscopes are handy but expensive and you can easily dump a lot of money into one loaded with features you won't use very often if at all.

I have eleven scopes, most of which I got at the London Vintage Radio Club and none were over $25.  Among them are two RCA 151 scopes, ground-breaking devices in 1936.



Do you really need more than a 1 inch screen?

[gcme93]

That looks stunning! I'm definitely going to have to copy that style for my multi effects pedal. If you've got an old functioning one of those I'd be happy to take it off your hands?

[deadastronaut]

+1 that is lovely...make a nice amp head too..

[amptramp]

Gutshot for the RCA 151:



I have several tube testers with the same general style of front panel.

If you are into the style of old-school test equipment (Edwardian to art deco), check this out:

http://www.myvintagetv.com/vintage_test_equipment.htm

[chromesphere]

Gutshot for the RCA 151:



I have several tube testers with the same general style of front panel.

If you are into the style of old-school test equipment (Edwardian to art deco), check this out:

http://www.myvintagetv.com/vintage_test_equipment.htm

That looks cool amptramp!  Does it take 4 x 12ax7's? Would i be right by guessing, gear of that vintage would be heading into collectable territory?  Meuseum or is that pushing it? Really nice design ont he front panel!

Paul

[deadastronaut]

@ron:   wow what a link

i really love those designs..very inspiratonal...

whatever happened to making stuff beautiful as well as functional eh,  same with cars nowdays too....i'm glad people are cherishing these old timers. 

[amptramp]

The complete RCA 151 manual is here:

http://www.myvintagetv.com/manuals_and_documents.htm

along with a lot of other stuff from the pre-war era of TV which in the US was 1939 to 1941.

The frequency response of the RCA 151 is 20 Hz - 15 KHz.  The tube complement is a pair of 6C6G's for horizontal and vertical amplifiers, an 885 thyratron for the horizontal oscillator, a type 80 for the rectifier and a 913 CRT.

The UK had TV from 1936.  If you land at Heathrow and go about four miles north in the Hayes-Middlesex area, you will see the Thorn-EMI building.  Go another mile north and you will see the Thorn-EMI central research labs.  As you enter the parking lot (car park, as they say over there), you will see the 10-foot tall top hat section of an antenna tower.  It was the first TV transmitting antenna.  Not the first for Thorn-EMI or the first for England.  It was the first in the world.  Enter the building and there is a triangular glassed-in island on the right with televisions from prewar Britain.  These would have been owned by royalty and the peerage because nobody else could afford it at the time, so I imagine there is a provenance with each unit on display.  And the craftsmanship is magnificent, as you would expect for a purveyor of product to the royals, and products before television design was mature enough that any cost-cutting was ever imagined.

[bluebunny]

If you are into the style of old-school test equipment (Edwardian to art deco), check this out:

http://www.myvintagetv.com/vintage_test_equipment.htm

Oh my.  I died and went to "re-purposing heaven"!