Intellijel Rubicon - Manual (Page 6)

Intellijel Rubicon Manual Version 1
Page | 6
sync, etc.
You can also self modulate to interesting effect. Try sending the SUB output to HARD or SOFT at
various attenuator settings, or the double sigmoid to TZFM, or whatever -- it may be total shite, or it may
be the most amazing thing you've ever heard. Experiment!” - David G. Dixon
Tuning Procedure
WARNING – Do not do this unless instructed by Intellijel
While the Rubicon ships from the factory with its tuning professionally calibrated it may drift out of
optimum tuning after several years of use. If that happens the below procedure may be necessary.
Please note this is a lengthy process and should only be undertaken by an experienced user.
0- Before Tuning have Symmetry set to full CCW
1- plug in and warm up for 5 min.
2- voltage offset gen at 0V
3- patch 1v/oct offset generator to 1v/oct in. You can also use a 1v/oct source such as a CV
keyboard. You will need to generate voltages that are precisely 1V increments (ie 1V, 2V, 3V etc)
4- connect ext fine tune to 3 pin header
5- frequency counter patched to tri out, mode to measure Hz
6- Set offset generator to 0V, set fine to 12 o’clock set coarse and extra fine so Rubicon is at 8hz
7- tune 8hz to 16hz range by using the offset gen to 1V. Then adjust CV gain so that freq is 16hz.
Go back to 6 and repeat 7 until 0V =8Hz and 1V = 16Hz perfectly.
8- set offset so it reads 64hz - Adjust xtra fine so you get exactly 64Hz on meter
9- set offset so you get 512Hz
10- 10 - adjust HFGAIN trimmer until the meter reads 512Hz
11- 11 - set offset so you get 4096Hz
12- 12 - adjust HFBIAS so you get 4096Hz.
13- 13 - now go back to 64Hz and repeat steps 8 to 12 until no more changes are needed
14- (about 2-3 passes total)