Don't give up. this is a learning rout. Not sure hwere you got your BITx40 from, but mine from HFSignals.com, was just great. OK the pots were a little cheep and only had 4mm shafts, not the normal 5/6mm ones, but it worked just fine. Did do a few mods and I suggest you too look at these as they do help with the working of the set. these mods can be found here,?
Not all are needed but you can choose from these and try what you like. I did put in hte 10 ten pot and a few others.
If you need help there are plenty here always willing to help, I found they do help a great deal and have a lot of build experience, Thanks guys.
Hope you keep going and get it working?
73s Vaughn
Vaughn