|Modified : jun 8th. 2009
J. Haible's Tau Phase Shifter
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|On Jürgen's PCB the power
filtering caps of the various IC are meant to be SMD caps
the track side of the PCB. Although, it is not that
difficult to solder
SMD caps by traditional means, I decided I would use mere
ceramic caps that I would solder directly as a replacement
caps. It works nicely as shown on the following picture.
|As this module was meant to be
integrated in my Yusynth modular I had to modify the power
connection. In the yusynth modular I am using the
standard. The photos below show how to proceed.
Component side : the socket must be inserted with the flat back facing outside.
|This is a very simple
it consists in adding a large value cap in
parallel with the LFO
cap (C54 : 470nF).
A switch was added to the front panel to connect or disconnect a 4.7µF/16V non-polarized chemical cap. The 4.7µf cap has one leg directly soldered to one lug of the switch, the other leg is soldered to one end of a wire which has its other end directly soldered to one pad of C54 on the PCB. The second lug of the switch is connected to a wire which has its other end soldered to the second pad of C54 on the PCB.