Monday, 15 April 2019
Saturday, 13 April 2019
DOEPFER A 132-3 V2 bleed MOD
I love all my my Doepfer A100 gear, it's what got me into modular in the first place!
Recently I noticed a bleed issue with my A132-3 Dual VCA.
It only seemed to happen in linear mode, and only with one channel. A post to the excellent Doepfer Yahoo group yielded a reply from Herr Doepfer himself.
"Hello,
V2 is an older version from 2010. Due to tolerances of the V2164D sometimes
the VCA does not close with CV=0. To avoid this a high value resistor (e.g.
4M7) has to be added between pin 4 (upper VCA) or pin 5 (lower VCA) of the
V2164 and -12V. This adds a small negative voltage to the CV summing
node. -12V is available e.g. at pin 9 of the V2164 or the wire bridge "J1"
below the V2164.
In V3 and V4 of the module the 4M7 resistors have been added.
Hope this helps
Dieter Doepfer"
A quick mod with two hefty 4M7 Resisitors and my Dual VCA closes to silence. Stuff like this makes realise why I love the modular scene.
I don't think many units with this problem were shipped, but I'm posting this just in case it might help any other folk...
Topside of my V2 unit
Underside of my unit with 2x 4M7 R's in place.
Job Done.
Job Done.
ONDE MAGNETIC TAPES
— Neal Beard AHM (@nealbeardAHM) April 13, 2019
Labels:
cassette player,
Chord Organ,
Eurorack,
experiment,
ondemagentic,
Synth DIY
Friday, 12 April 2019
Gameboy Clock Sync Doo Hickey
Just got an amazing wee doo-hickey off eBay for a tenner. It sends a clock from a gameboy to sync with other gear. Posting the film not for its musical merits, but just to show... it works!https://t.co/XaE9h5piIq pic.twitter.com/vE9ZpI3hZa— Neal Beard AHM (@nealbeardAHM) April 11, 2019
Labels:
Chiptunes,
Circuit Bending,
Eurorack,
experiment,
Synth DIY,
Synth DIY Chiptunes
Twiki Locks to a Bent Tr505
Circuit bent machines began spontaneously making music, looked over by the ghost of Twiki...
Gear:
Bent tr505
Samples of bent gear loaded into a disting.
Mfb 522
Ground hum and that fucking annoying noise you get if you forget to use the USB adapter with a beat step pro.
Thanks for listening!
Gear:
Bent tr505
Samples of bent gear loaded into a disting.
Mfb 522
Ground hum and that fucking annoying noise you get if you forget to use the USB adapter with a beat step pro.
Thanks for listening!
Labels:
Circuit Bending,
disting,
Eurorack,
experiment,
home studio,
MFB 522,
Roland tr505
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