Vintage Synth Repair

hi list,

i have found all the needed parts for my tech to build the two SG boards (KLM64) for my Korg PS3100.
apart from the sixty K30A-O transistors, which i will use the K30ATM-O in place of the K30A-O, for the two SG boards.

are these two transistors basically the same?

i have found the datasheets for k30A-O and k30ATM-O.
they seem to have really the same specifications, apart from two parameters that have to do with voltage:
the VGS for the K30A-O is (min to max) 0.4 to 5 volts, but for the K30ATM-O is -0.4 to -5 volts (they have opposite signs)
the same is valid for the Vgds for the K30A-O is 50 volts, but for the k30ATM-O is -50 volts.(again opposite signs)
 
but, i guess, that this is the same and has only to do with the measuring conditions, right?
(i know almost nothing about electronic engineering, so i cannot really understand many parts of the datasheets...) 

any help?

many thanks in advance,
best regards,     :-)
Bakis.


Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
[Doepfer_a100] group owner
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