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"CV/GATE MOD installed on buyer's request
CV signal level shift mod...
Old roland monosynths (like this 101 and SH-5) have F = 1[V] CV protocol while most of analog synths have C = 1[V], it means when you feed CV signal to other standard analog synth and play C key, the standard synth will sound F.
To adjust this mismatch we can install CV level shift circuit in CV OUT section.
GATE signal level shift mod...
Old roland monosynths (like this 101 and SH-5) require more than 10[V] GATE signalto start and contol EG (envelope generator) while most of modern analogue synths needs about 5[V], it means modern CV/GATE keyboards that feed 5[V] GATE signal won't start 101 EG.
To adjust this mismatch we can install GATE level shift circuit in GATE IN section."
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