Elektor Formant Modular

OK I have tidied up my Old Formant PSU, Hurrah.. looks nice, stuck my 
(misunderstood) voltmeter on the wires and I get +15 where it should 
be +5 where THAT should be.. 0 on well um.. zero.. but.. how do I 
know it the -15 is working? (tried reversing the red and black 
probes.. no effect).. Anyway seems to be working... so

I connect up an ADSR. Now thos of you that remember, I blew one, I 
think, connecting to my Blacet PSU... Now I know I blew it.. dead.. 
so I chnge the IC's (yes I had cleverly bought a bunch of spares..) 
now when I connect (and please bare in mind that THIS ADSR used to 
work on THIS PSU) I feel the IC's and sure enough.. one is heating 
up ... I pull the plug.

What do I know? My ADSR is blowing (maybe on ALL PSU's) particularly 
on one IC? Maybe the old ones are OK? (apart from this one)

Questions?

Well, How can I find out why this is happening.. believe me Ive 
stared at the circuit long enough looking for breaks and blobs etc...

maybe its time to try a different module? a VCO perhaps?

Next time I plug it in Im going to use a resistor to cushion the 
voltage

Kris, you said you may have some way of telling if modules worked? 
you said...
I think I have some test sequences in my report if you want
I'll send you it ..
er.. yes please!!