PS.
The above link was only shown for reference, there no doubt will be better deals from the UK. The V212 and similar are excellent scopes.
(02-11-2017, 11:22 PM)Mark Hennessy Wrote: [ -> ]Don't buy that 'scope. The Telequipment DM64 is a dog of a 'scope to work on. Ask Sam ("Boater Sam" on here) - we spent a day together fixing one once upon a time.
As the fortunate (?) owner of 2 of these, and the Sam referred to, I must agree.
The scope has been reliable since Mark waved his magic wand but the work dismantling it to get to the faulty parts was very involved, finished up with the timebase switch outside the chassis connected with at least 30 temporary wires whilst the main pcb was fixed. And you can't get to both sides of the pcbs at the same time!
For the use you will give to a scope it would be lower on the list of desirables than a simple signal generator but if the budget is there go for both. Used scopes go for peanuts at radio auctions, but avoid the complicated ones.
Buying on the web and having them shipped is a bad idea, the banging about that a scope would get can destroy the tube.
Put a wanted ad on here and I'm sure a forum member not far from you will have something of use.
Hi. Looks ok bar a broken or missing knob, hopefully the shaft on the control is intact.
I'll say that these are good scopes, had them while I worked in Serviscope for a while.
A fully working Hameg will be ok, the one in the last link has not been proved to be fully working, I'm pro 'scope but do you need one yet? If you fully understand how a radio works etc then maybe yes, but if you don't then learn the radio workings stuff first and think about a 'scope later, If you don't grasp the basic theory then you will never properly grasp radio/electronics troubleshooting.
Lawrence.
My view is the opposite. For someone who is learning electronics, a 'scope is absolutely invaluable, and given how cheap they are today, denying yourself one is just perverse. I used one from the age of 14, and had my own aged 16.
I fully appreciate that others weren't so lucky as they learnt in a time when 'scopes were expensive things. These folk often went on to work in workshops that didn't have a 'scope, again for cost reasons. These people obviously got by, but many faults would have been diagnosed more quickly with the help of a 'scope. However, the world is a different place now. Use a 'scope to learn electronics, then use it to help diagnose faults, design circuits and keep the shed warm! Don't feel guilty about putting the 'scope on, for fear of "wearing it out". I've worked with people like that in the past, and I've seen first-hand how it cost the business money.
When we teach electronics, we get on to using 'scopes as soon as we've covered basic DC theory. I can't imagine trying to understand a transistor circuit without being able to see the signal. A lot of people (including some with lots of experience) struggle to separate AC and DC, for example, but sitting down with them and a 'scope for 5 minutes is enough to clear it up.
Thanks; I didn't win the auction for the Hameg but have put in an offer for another. Would I gain knowledge though in the interim if I bought one of the toy digital scope kits (eg JYE Tech 068 DIY KIT)? I have made enquiries at my old work place (College/Science) to see if they have any stuff destined for the skip.
I have finished week one of the Coursera course (on-line) (voltage dividers, Coulomb, Kirchoff, Ohm etc) and am up to p299 (out of 800) of "Electronics for Dummies")). Breadboard is on its way... I am about to build an auto probe according to David's excellent guidance for the Vellemann sig tracer.
Thanks for all the help and encouragement.
Richard.
Hi.
I'm with Mark.
When I was a boy I wanted a scope but it wasn't till I worked with British Relay that I got to use one. My scope is on each and every time i'm in the shed and have to say it's the most useful tool you will ever have. Not only for learning and repairs it can also do many things from testing transformers, it can tell you if little transmitters you make are working properly to even showing TV pictures.
I'd be at a loss now without it.
(03-11-2017, 01:53 PM)Murphyv310 Wrote: [ -> ]Hi.
I'm with Mark.
When I was a boy I wanted a scope but it wasn't till I worked with British Relay that I got to use one. My scope is on each and every time i'm in the shed and have to say it's the most useful tool you will ever have. Not only for learning and repairs it can also do many things from testing transformers, it can tell you if little transmitters you make are working properly to even showing TV pictures.
I'd be at a loss now without it.
Ah yes I used one to watch TV! A scope is a very usefull tool. I grew up in radio service we did not have an oscilloscope probably because no one knew how to use one and did not want to display their ignorance!
Its not an essential tool for radio repair,but every little helps!