[35Z5]

I dunno which is best, tramping across the net I've seen several examples of 807A & 808A that have black splotches on grille(be careful how and what you use to clean yours). Of course it's almost a sure bet the later models with brassy cloth grilles will turn green, or at least wear thin. Coating on those seems to tarnish. When I tried to clean my 807J, it wound up with bare cloth... Luckily the gold Sharpie treatment is a close match to orig.

My interest is mainly with the A series... Going by production dates(stamp on model label) there seems to be approx five months of 807 & 808A builds, a down time, then production of the B series. The 805A & 806A enjoy approx nine months, though there is a large gap between earliest that used the P755 chassis(only seen one of these) and later that used same chassis as 807A. Also yet to see a 805A or 806A built in same time period as 807 & 808A, though I've seen a 805 built the week prior to first 807. Of course I have accumulated only a small sample, no doubt I'm missing data(whaddya 'spect for free? ).

BTW. It's a sure bet any of these that use the white Nashville/IEI caps will require replacement.  I believe the 807A/808A & maybe late 805A/806A used Sprague caps, though my 41st week 1959 806A had Nashville. Most of the 807 & 808A were built early in '60.