These work great. I bought a few when RF Parts still had them in 2008 or so, I put a Viagra A "Blue Dot" board in my PC-122. Yes, it works there, too.
"Blue Dot" has 40 up, 40 down, I have a "Green Dot", and a "Red Dot", one goes up 40/80 and the other goes down 40/80. I have a few "Blue Dot" boards, 1 "Red Dot" and 1 "Green Dot".
I also have a Viagra B board, that uses an MC145106DM (SMT) PLL to do the mixing.
I bought them for samples when I was going to start working on radios again, until one of the local riff-raffs got into a war with me and my friends, so I shut the whole radio repair service idea back down.