Vox AC30: Burndept chassis colour codes for voicings

Treble, Bass, Top Boost

1964 - early 1968

From around chassis number 3000, Burndept indicated the "voicing" of the chassis it produced for JMI not only with a stamp in red, but a colour code. "TREBLE" had a red splash; "T/B BOOST" (integrated treble and bass controls on panel) had green; and "BASS" - produced in smaller numbers - had blue. "Normal" AC30s had neither stamp nor colour.

The splash of colour was presumably supplied - while the chassis was on the assembly benches - to indicate how the voicing should be stamped above it.

A page on Burndept chassis numbers .

Detail of serial number 11613T, chassis number 3083.

Serial number in the 12000s, chassis number 4530.

Serial number in the 18000s, chassis number 8407.