TDA1541A S1 & S2 sources?

Sometimes you just get lucky. A few months ago, someone posted on the Asylum (either tweaks or digital) that he ordered 1541 pieces from one of the biggies (maybe Parts Express or MCM, I don't recall right now, even though I ordered and got a few) and got S1s, for real cheap. I'd guess that, as an "obsolete" part, they aren't even being evaluated and graded anymore at surplus or wholesale operations. - Pat