But I'll add some info here.One question...how are we going to take into consideration that some of the amps were upgraded. I have seen a 70's chassis with full skyline high plate setup.
Also the mods to the 70's amps, voicings for specific guitar players.... There's the tmb 1M 250K 1M with the 10K bass tail and the james config (.002 and .02uf) with .1, .05 and 500pF mica with 100k slope.
There's versions of above with mixed 1M and 500K pots for Bass and treble, my guess is that these are mods for certain players, also the james config was altered.
There's the classic early 80's with TMB 250K, 100k, 250k with 1k bass tail, no cap across bass pot and .1, .05 and 270pF ceramic with 100k or 150K slope. I have the impression this was in the early amps too with 100K slope.
Stacks above have a deep switch.
Then in the late seventies, a 'Skyline' was observed in a 50W 70's amp according to a source. I have not seen the amp, just going by the info I received.
Then the classic stack prevailed for a while and was upgraded to Skyline specs which we all know. Bluesmaster specs are well known too.
Anyway, my point is that nowadays, due to all the factors mentioned above, we will observe many types of tonestacks in these silver chassis amps. But I may have answered some of your questions.
Hope this helps,
jelle
and also the original speaker cable, which he forgot to pack when he sold it!
