help needed with Sound Values #957003 board

Hello all, I was given a basket case ST70 that came with the Sound Values PC-3 6GH8 board #957003)and the SDS cap board. I have re-cased the amp and all was good until I went to test it with a preamp/cd, It was working for a short time until R26 on the board started smoking.
I have found the manual for the Sound Values PC-3 in question and see that there was to be a 10 ohm resistor (page2 task 7) installed with the input socket? Is this a separate 10 ohm resistor than what is on the board. Can someone that has the board installed confirm where this 10 ohm resistor goes..if needed at all?
Or am I wrong in assuming that?

Thank you
Tony

Hi Tony, I dont have any expertise with the SV Board for the ST70.

But for what it is worth, there is one for sale up on the E-Site.  It includes the installation documentation.


eBay item number:
223455712256

If you do a ebay search by item number, it should come up.

Stew

no reason at all for the 10 ohm resistor to smoke, unless it causing a short to something else.
It's likely the same exact 10 ohm resistor used on the original ST70, one from each channel ground to the stereo-mono switch.
Original ST70 manual can be downloaded from my DOWNLOADS page
http://www.tubes4hifi.com/downloads.htm
There was also a 10 ohm resistor from the PCB to the front octal sockets, maybe you have it connected to your bias test points????