Quad cap use and other questions

I just received Roy's upgrade board for the ST70, and have a question before I go ordering parts to populate it. Is the original quad cap replaced by C13, C14, C15, C16, or am I missing something? It isn't clear in his manual.

I have a Curcio PS board in my amp right now (as well as his driver board, but it is coming out). I could take out the PS board and get a new quad cap, as the old one is only on for aesthetics.

And, what are the values for the other set of caps you can get for C13, C14, C15, C16?

Just a little confused.

Thanks for the advice

Bruce

Hi Bruce,

You still need the quad capacitor or an external board equivalent. C13-C16 are used in addition to rather than in place of the quad capacitor. The one change is that you can free up one section of the quad capacitor and parallel that with the first capacitor section after the choke. Have a look at the picture of the underside of a new kit ST70 on Roy's page. Also look at:

http://www.tubes4hifi.com/VTA70-diagrams.htm

Good luck!
Dan

Thanks Dan,
I thought that might be the case. This will be a slow project, as I'm mot in a hurry to get this done. I have a pair of Welborne Labs 2A3 Moondogs that I normally use. I wasn't too happy with the way the Curcio mod came out on the ST-70. I did it about four years ago, and figured it was time to try this one, which I came accross right after I did the other mod.