New guy just getting started need advice on tools

Hi guys,

I need to buy my first scope to do mostly tube guitar amp repair and solid state amp repair. I don't have a lot of budget to spend, perhaps $300. I have been working on my own stuff for many years without a scope and now I am working on other peoples stuff.

Old tube amp stuff does not require much of a scope to be useful and some have recommended a used Iwatsu SS-5702 or a Leader. All these scopes sell from 50 bucks to 300 used on ebay.

What would you buy and where would you buy it. Many on ebay but how do I go about getting a good one. Also I have no idea of the issue of probes for such a scope.

I want to use the scope to look at clipping, jitter and things like that to help identify issues.

Thanks,

Billy

PS: I am trying to set up a proper work bench on a fairly low budget ($1500 to $2000) so there are some other things I need to buy also. I am a disabled vet and don't have a lot of income. The whole idea is to have some way to make a few bucks working from home. Other questions to follow I am sure...lol

 

Thanks Minder for the link.

I am also looking at Tektronix scopes as there are a ton of them for sale well within the 300 dollar or so budget. I want a analog scope at the moment and may buy a digital one some time in the future.

Anyone know of a good electronics supply company in the United States where I can get this kind of used stuff so I do not have to buy off ebay?

Thanks,

Billy

 

Hi guys,

I decided to buy a digital scope. It will be here tomorrow. It is a owon 100mhz oscilloscope sds7102v. A buddy of mine gave me one of his old Tektronix scopes and it will arrive in a few days. I have a Fluke 177 and two or three other meters plus I ordered a Simpson 260-8 to replace one that is just worn out. I been wanting to replace the Simpson for a while. I guess I have used it for more years than I can remember. I also got a new 20 amp 0-130V Variac.

I have a good 25 Mhz 2 ch waveform generator made by Owon also that I got used and new in the box last year from a guy for 100 bucks. I guess that is what put me on the Owon scope. I also got a LCR bridge from the same guy for cheap.

I have several speakers and dummy loads and a small supply of tubes and pots and caps and such.

About the only thing I don't have is a power supply and a tube tester. The tube tester is a bit of a issue because I don't see good ones for sale at any price. One will turn up at some point perhaps. I have a bit of work coming my way so all is good. Just finished a Fender Twin clean up for a guy and replaced some caps. I love Fender Twins and I hate Fender Twins when I have to pick them up...lol

I even downloaded a resistor color chart to my iphone.....gone all modern on you guys...lol

Of the things I have lost, I miss my mind the most!!!

Cheers,

Billy

PS: Thanks for all the feed back

 

Hi bigone5500,

I also bought the Owon from Saelig, Around $450 with a batt. A bit more than I wanted to spend but.... I may wish I had got a Rigol as there is much more info on the web for that scope. We will see. I been reading the manual for a few hours. There is a good bit I don't understand yet. I am sure it will take some time to learn.

Any ideas for a good general electronics parts store?


Thanks,

Billy

 

Thanks 5500,

I have been using Mouser and Digi-Key. Digi-Key has better prices and Mouser has better stuff in some cases.

I will check out the other places listed in the link.

Thanks for the info.

The Owon SDS7102V arrived today and I have spent the evening learning how use the new scope. I have never had my hands on a digital scope before so this is a new adventure. Basic stuff is more less pretty easy. I guess I have read about 75 pages of the 100 page manual and tried some of the functions with my function generator. I am trying to take it easy and get on solid ground before I go sticking the probe in some 500 volt analog circuit.

The PC software that came with it would not work so I found the latest version on a German web site. The VGA output from the scope is kind of cool for a old blind guy...lol

Not much info on the web for Owon that I have found. Guess I will do a video at some point so the next "old guy" or young guy for that matter, will have less of a learning curve.

Onward through the fog....lol

Thanks again,


Billy

 

Hi Martaine,

Thanks, I listen to both videos again. The first thing in the Owon manual is General Safety Requirements which makes it clear the issues of earth ground, USB, ect, and the fact that there is a earth ground point on the back of the case that can be used when running on batt power. Failure to understand these issues can result in three possible conditions. One, you damage a devise, two, you get a nasty shock, three, you kill yourself.

As far as the review....some things he said have either been fixed on my scope or were just a defect on the scope he tested. The way to get to things on the Owon takes a bit of getting use to but I don't find it a issue so far. It is not a $10,000 dollar scope.....lol

Thanks for posting the videos!!

Cheers,

Billy