The spare certainly looks to have brown (as mentioned before) in the picture taken at Toronto, 7th September, '64. It is likely that the spare was Paul McCartney's first AC80/100, brown grille cloth, distinctive back panel, issued in late December 1963. The other two, which George and John used interchangeably, had black cloth. Paul's had brown cloth to match his speaker cabinet. The back panels were consistently arranged. The three main Ac80/100s used on this tour were new, having been consigned to the group by JMI in late July. The amp, when present on stage, is normally stationed beside Paul's bass cabinet. The first is available here.īelow, further pictures and details of the spare AC80/100 seen on the Beatles' first major North American tour, August-September 1964. Was this one of the AC80/100s that JMI tested in the Burndept factory in Erith in July 1964? See the entry at the top of this page for more.Ī set of picture pages of the AC80/100 with no legends on its control panel is in preparation. The presence of this unusual complement adds to the sense that the amp was used for testing.
All three date from 1963: June and November.įrom an electronic standpoint, an ECC83 as driver valve (V3) works perfectly well if balanced and of low noise.
The interesting thing, which hadn't registered previously, is that the complement of yellow-print Mullard preamp valves is: two ECC83s and one ECC82 instead of two ECC82s and one ECC83. The page on the preamp of the AC80/100 with no control panel legends is now up.
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