03-05-2018, 06:24 PM
That particular 'scope has a digital section that probably isn't all that useful today, but will add substantially to the complexity and might well make it harder to repair.
The PM3215 that I donated is rather more straightforward and easy to work on. There's only one thing that renders these Philips 'scopes of this era BER - the transformer in the PSU. Not the 50Hz mains transformer, but the high-frequency transformer than generates all the rails from the single DC from the conventional PSU. These transformers are unobtainable unless you can find a good part in a donor model. I imagine that long periods of non-use in a damp cellar won't exactly help...
So, get the 50MHz PM3215 to your workshop and use it regularly. Otherwise I'll ask for it back
The PM3215 that I donated is rather more straightforward and easy to work on. There's only one thing that renders these Philips 'scopes of this era BER - the transformer in the PSU. Not the 50Hz mains transformer, but the high-frequency transformer than generates all the rails from the single DC from the conventional PSU. These transformers are unobtainable unless you can find a good part in a donor model. I imagine that long periods of non-use in a damp cellar won't exactly help...
So, get the 50MHz PM3215 to your workshop and use it regularly. Otherwise I'll ask for it back
