Aion Electronics refractor 125B - Klon centaur - Help

[Milos38]

Hi all,
I have just built the subject kit stock from aion and obtained parts from the mouser list. The only change I made was putting in some D9E diodes in place of the Bat41. It outputs decent boost to my amp channel, however I am not real hearing any gritty overdrive. My IC voltages are as follows:
Tested with 9VDC battery. Measuring 8.44V across terminals
IC 1                    IC2                    IC3
1 4.01                1 3.88                 1 7.88
2 4.01                2 3.98                 2 4.33
3 0.98                3 3.96                 3 0
4 0                     4 -6.58               4 -3.04
5 3.94                5 3.96                 5 -6.59
6 4.38                6 3.98                 6 3.14
7 7.63                7 4.11                 7 3.7
8 7.81                8 13.27               8 7.74

Any help or ideas would be much appreciated the instruction I used was the 125b off aion's website which contains the IC voltage readings that you should see. Most look good given I have less supply compared to the 9.86V used to test in aions instruction.

Look forward to responses ideas and if there is no problem then maybe I thought it was going to do more than it does. My amp I used to test is a Marshall DSL401 combo, ran through clean channel only.

Cheers,

Andrew.

[thermionix]

IC1 pin 7 shouldn't be that high.  Check for a solder bridge between 7 and 8.  There was another thread a few months ago where somebody said they weren't getting any dirt out of their Refractor, I don't recall if it was ever resolved.  I had D9Es in mine for a while, and it definitely had gritty overdrive.

[Milos38]

Thanks man, I'll pull it out and give it a check. It seems to definitely produce sound and does boost the signal. Hopefully it is something small like that. If it's the chip I have another two as I bought a kit to build for dad as well.

[Milos38]

Thanks again mate, i checked my soldering, problem with the socket or bridging all was good. I changed the IC out with one of the spares I had for the second build. New IC tested correct. Cause was a dodgy TL072. Hopefully she punches out some true grit when I road test her.