Oscilloscope

[Matt_Rowe]

Rigol scopes are also known for hackability. I upgraded mine, it was quite easy.

ll look at rigol next on amazon thanks
I

[Matt_Rowe]

Some users report problem with (USB linked) software under Win 10.

If PC real-time analysis is important to you, check first if problem is real and solved.

hanks, i will do that, only interested in md or coils right now
T

[Old cart]

I do not recommend PC based scopes. They do some things well but the update rate is usually poor and having to use a PC as a display is a pain.

[Old cart]

Rigol are good inexpensive digital scopes and are well supported, at least in the US. DS1054z is a good 4 channel model and 50 MHz bandwidth which should be more than enough for detector work. If you can live with two channels the DS1202 is less than $300US.
Analog oscilloscopes still have advantages particularly for beginners. I am not aware of any current production models that are of good quality though. You should be able to find good used older oscilloscopes BUT you will have to know how to fix them yourself. They can be fixed and there is help but the good ones are all old. The Tektronix 465/475 were built back in the lates 1970?s that is 45-50 years old. Thinks break after that amount of time.

[WM6]

I was looking at this one as a maybe

Hantek DSO5072P, $215

Some users report problem with (USB linked) software under Win 10.

If PC real-time analysis is important to you, check first if problem is real and solved.

[Carl-NC]

This can be firmware upgraded to 200mhz from a 70mhz model
some come shipped already done, there is a video of an electronics person showing this, learn electronics is the name i think.
I was looking at this one as a maybe

Hantek DSO5072P, $215

Rigol scopes are also known for hackability. I upgraded mine, it was quite easy.

[Matt_Rowe]

This can be firmware upgraded to 200mhz from a 70mhz model
some come shipped already done, there is a video of an electronics person showing this, learn electronics is the name i think.
I was looking at this one as a maybe

Hantek DSO5072P, $215

[WM6]

The Tek 465/475 were one of the best analog scopes, built to last.

My suggestion also to look after those models.
I have two 475A (purchased as used), both in mint state, one for work, the second for spare parts.

Purchasing suggestion:

If possible, buy used analog scope from knowledgeable person, who is able to calibrate such scopes.
Do some search and talk to sellers about their competence in field (of scope servicing).

If possible, avoid purchase valuable instruments from ignorant garage/yard sale resellers, without
prior quality check.

I've been using a Rigol DS1052E.

Rigol is between "chinese" one of most decent brand.
Old DS1052E can be even tricky "upgraded" to 100MHz.

[ivconic]

... I would either suggest an all-analog CRT scope or a digital LCD scope...

Correct.
I was not in (financial) position to buy good enough digital LCD scope, so i picked and bought very good enough all-analog CRT instead.
For what you get from all-analog CRT scope; you'll need 3x ... maybe 5x more money to pay for digital LCD scope.

[Matt_Rowe]

Thanks to all, that person never answered me back after i asked how he tested with no probes. The one from craiglsit

[green]

I've been using a Rigol DS1052E. Don't know how it compares with other scopes in it's price range. Works for me. Have used analog and digital scopes at work. One advantage of a digital scope, can see the whole trace when looking at longer record times(looking at integrator noise with 500ms or 1second/division as an example). Analog scope with persistence would work also. I haven't seen a disadvantage using my digital scope playing with metal detector circuits.

Digital scopes can alias. If trace doesn't make sense, change the time base to see if trace changes.

[Carl-NC]

I would avoid a hybrid CRT scope. I've had a few in the past (mostly Tektronix) and they've been problematic with glitchy digital operation. I would either suggest an all-analog CRT scope or a digital LCD scope. The Tek 465/475 were one of the best analog scopes, built to last. The later 2200/2400 series are hit-or-miss, some are good but we had a lot of 2465's go bad at Analog Devices. Kikusui generally made good analog scopes (used them in college) and had good luck with a batch of Hitachi scopes I bought at an auction.

[WM6]

Norm 5 Mv/div-5v/ div
X5 MAG:1mv/div-1v /div

This is OK (if scope is in OK working condition - not to heavy used)

Max sampling speed 1m samples/sec

This is hybrid CRT scope.

It can work in classic analog way as real time CRT oscilloscope with 20MHz bandwidth

or

as digital storage oscilloscope with 1Ms/s (max) and <300kHz bandwidth.
Digital storage mode of scope work is pretty poor by today's standard (it is dedicated to
audio field and at the same time sufficient for MD lab needs).


In general it is/was OK scope, all depend on how you are able to check its
present working condition on remote way.

[Matt_Rowe]

kikuso oscilloscope from craigslist

It does say in the pdf that surfdetector posted
Norm 5 Mv/div-5v/ div
X5 MAG:1mv/div-1v /div

And input voltage--400 vpeak {dc plus ac peak} ac: peak 1khz or lower
polarity change channel 2 only
Max sampling speed 1m samples/sec

[Matt_Rowe]

Thanks, surfdetector, i will have to because he said he doesnt have any, but said it works, so i asked him again how does he know it works without having any probes.He said it worked last time he used it, so i asked him again, how did you use it without probes, still waiting on answer. He has a few pics of it on, straight line on top left side, and then another straight line on bottom right.
thanks for your response and help, i will go look at the link and manual.
Thats a big difference WM6 in the pics you attached above.