Roland TR-999 KORN HARDCORE CUSTOMS TR-909 Mod full walkthrough

Roland TR-909 Modification by KORN HARDCORE CUSTOMS.
for more infos please visit:
www.jacobkorn.de/korn-hardcore-customs

Completely reverted the previous work. NOW it feels like my very own 909. Notice that signatures from Jeff Mills and Juan Atkins that i was lucky enough to meet during gigs.

So the final list of modifications is almost endless since the great nava extra 9 project and Robin Whittle documented a lot of other stuff that i needed to try out. I was actually ok with it now to not being able to switch every mod on/off. But you can dial in the stock values still. Plus i needed that replica knobs that really look great on the machine now. Was some extra work to fit in the support boards for the d-shaft knobs but totally worth it.

BD:
-BD Pitch R59 (100k lin + 10k)
-BD Tune Depth R28... (220 kB+Trim)
-BD Overdrive R52 (10 k lin + 1k)
-BD Tune Range (C9 1uF, R21 1k R57 10k paral.)
-BD Decay Range (C8 1uF parallel)

SD:
-SD Tune Range extended R284, R287 (4,7k 47k prallel)
-SD Tone Range extended (Noise Decay) R254=100k: 10k replace or 10k parallel
-SD Snappy Boost R294 (22k parallel) Trimmer: boosted the mix level of the output of the Snappy pot (13.4k instead of 47k, leading to 3.5 times the signal level, which is about 10dB)
-Switch Snare Decay exponential C68 is removed, which eliminates the 24 ms flat start to the envelope

TOMs:
-Tom Tune range R112 10k Original parallel 4,7k
and R113 68k orig parallel ca. 30k

RIM:
-RIM Tune R414 (1M rev log )
-HH Tune R492 (22k lin + 6,9k)

CLAP:
-CLAP Tune R207 (500k lin + 13,7k)
-CLAP Noise (10k lin) TM near R494
HH:
Tune R492 (22k linear +6,9k) 50k

Cassette Slot:
-Rim tune pot (r414) 1m log
-switch on/off
-clap tune pot 500k
-switch on/off

FIXES:
-BD Diodes
-Snare bleed!!! Q47 VCA (hi passed noise) almost gone, thanks Robin Whittle!!!
-Master Volume crackle...vaseline spray:)
-BD Tune Depth and Tune on one switch

Resources:
   • Introduction to Extra9 - NAVA (TR 909...  
https://www.dropbox.com/sh/ygxkfbkcs7za ... Matma?dl=0
http://www.firstpr.com.au/rwi/tr-909/
http://www.colinfraser.com/tr909/909m...
https://normalsounds.com/blog/tr-909-...
http://www.cykong.com/Synths/Roland%2...
http://www.network-909.de/circuit.htm
http://www.gzifcak.net/eim/tr-909.html
http://hardware.freepage.de/cgi-bin/f...
https://www.soundtoparts.com/en/home/...