FS (BEL pref): Philips PM3055 50MHz Oscilloscope - Page 1
Forum section: electronics / general

author: meerweten
author_rank: Contributor
timestamp: February 04, 2014, 08:59:07 pm
content: I sell my analog 50MHz scope from phillipsi would like 100€ (including schipment using kiala.be, for belgium only) shipment using other methods, or to other country's not includedthe power button is not working (always pushed in) and the power cable is to be used to switch the thing on)with remote controll posebilety ('old style' db9 rs232 connector)some pictures:

author: ramonest
author_rank: Contributor
timestamp: March 16, 2016, 10:23:53 pm
content: Hello, I'd like to know if the model is suited and ok for a beginner?And what would be better the pm3055 60 MHz, hameg hm604, or hameg hm208?They are the cheapest options I have, other than getting a usb or these type, and I really want a proper one I'm already used to them at the uni.Tanks!

author: Shock
author_rank: Super Contributor
timestamp: March 19, 2016, 11:33:14 am
content: I have several similar oscilloscopes. The PM3055 is old but a more modern analog scope design. The Hamegs come with a component tester which is a feature not found on the PM3055. The Philips have a few problems around this age with capacitors the large X2 and the large caps in the power supply for sure. Any instrument of this age can suffer issues, as for the specifications look that up.Important that it has been tested working good and triggering properly on both channels. For a beginner, if there are any problems with it you might be in for some hard work ahead.Inside along the power supply is a long plastic arm that switches the supply on towards the rear of the scope (as shown in red at the top of this image). You may want to confirm if it's there which would make fixing the switch possible.From the photo I can also see it's missing the carry handle as well (or it's been removed). The other thing is if it comes with probes, manuals etc. All things to consider if it makes a difference. A new oscilloscope would certainly come with everything you need to get started.The db9 rs232 connector is on all of that series as it is also used for some other options.If the scope is working fine and shipping isn't too expensive then I would say it's not a bad deal. Depends on how long you wait and how hard you look. Ultimately you have to decide for yourself.

author: ramonest
author_rank: Contributor
timestamp: March 21, 2016, 11:19:11 pm
content: Thank you, since the 3055 got sold and he doesn't reply me anymore. But I found other ones that might be good too. I'll try to ask for advice on a new thread(is it ok?).Btw, do analog digital scopes, such as tektronix 2221A and hameg HM305 have some disadvantages, o more freqüent problems?

author: Shock
author_rank: Super Contributor
timestamp: March 22, 2016, 03:23:22 am
content: I don't know what will fail first on those scopes.However any piece of electronic test equipment around that age (20-30 years plus) can and will eventually fail. Just if you can make sure it's been properly tested and working before you buy (unless you can repair them).I suggest if you have more questions on specific models start a thread in beginners or test equipment, if you want to advertise for someone to sell you a scope start a WTB thread in this forum.