[AH] Roland 2nd VCA replacement

From Jeffrey Needham
Sent Thu, Mar 1st 2018, 18:45


I am about to replace my Jupiter-6 NEC uPC1252 (a DBX compressor VCA) with a=
 THAT 1281 which has much better BW and rise time. The 1252 also appears in a=
 Jupiter-4.

All voices sum through this part, so my experience with replacing summer bus=
 stages in a Polaris and OB-Xa is that it improves fidelity without losing c=
haracter.=20

The THAT 1281 requires some support resistors and THAT have been very helpfu=
l.

Has anyone swapped out their 1252?