Electronics > Beginners
Question regarding two scopes
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dmkfeatf14:
Hello eeevblog family,
I was given two scopes and don't know which one I should keep and donate the other.
These are the two scopes that I was given:
Tektronicx 2215
Phillips/Fluke PM3375
Which one should I keep? They both work and the one that I keep will be my very first scope that I use and own.
TIA
Tom
Shock:
Keep both, if you upgrade to a more modern digital storage oscilloscope or a better analog oscilloscope later you can replace them.
Ian.M:
The Tektronix 2215 is a good quality 60MHz dual channel delay timebase CRO that you are likely to be happy with as your main analog scope for years to come. As delay timebase CROs in good condition are becoming harder to find at a reasonable price you'd be stupid to let it go.
The Philips PM3375 is an ageing MSO, from the era before DSOs were good enough to stand on their own without falling back on operating as an analog CRO. Its digital side has only 4096 8 bit words of sample memory shared between both channels, and its 100 Msamp/s max sample rate limits its effective digital bandwidth to about 10MHz. The added complexity of its digital side will make it much harder to keep in good working order long-term.
Although the PM3375 has slightly better analog specs than the 2215, its let down by the complexity of its digital controls and the lack of a analog delay timebase with vernier controls. Its certainly better than no scope at all, or a low end 20MHz CRO or bargain basement USB or handheld DSO, but I wouldn't keep it a day longer than it took to acquire a reasonably modern DSO (USB or standalone) with more sample depth and the capability to export data and screeenshots, then find it a scopeless new owner.
Learning to 'drive' a classic analog CRO like the 2215 will help you understand the use of scopes in general, and should stand you in good stead in future adventures with modern DSOs.
David Hess:
Keep them both and put the one you are not current using in an out of the way closet or shelf as a backup since they are both old.
dmkfeatf14:
Thanks everyone for your valuable suggestion, I have decided to keep the Tektronix 2215 and donated the Phillips PM3375.
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