Vox AC30 website updates

June 2024

30th June (2)

The page on has been updated - six new entries, three existing ones expanded.

Also to add in relation to the previous entry, the page on has been updated.

30th June

Below, a checker's tag in a Westrex cinema amplifier, and below that, the same checker signing off a black panel AC30/4 chassis.

Westrex tag in a 50 watt cinema amplifier, late 1950s/early 1960s.

Black panel AC30/4 chassis in TV Front cabinet.

29th June

Coming shortly, some details of an early AC10 Mark Ia, probably from the beginning of the first production run (date to be confirmed).

28th June

Pics of AC30 Twin serial number 5255 have now been added to this page. The chassis is from early 1963, the date code on the tone pot "LJ" = December 1962. Thanks to Greg.

AC30 Twin serial number 5255.

26th June (2)

Below, a short list of AC30s from 1962 with Top Boost circuitry added or rather incorporated early on, controls on the back panel:

4995 - Twin, the Top Boost bracket has two fixing points at top (normally there is only one), no component date codes visible though the electronics are evidently old (and factory installed).

5311 - Super Twin, perhaps a replacement trafolyte facing panel and control knobs. The electronics are old (and probably factory installed).

5329 - Super Twin, Hunts cap. visible but no component date codes. Perhaps sold with Top Boost already fitted.

5648 - Super Twin, the white trafolyte facing panel is now missing, and the foot of the bracket looks to have been shortened. The ECC83 has the date code "JL" = November 1962. The Hunts cap. has "YIW" = 3rd week of 1961.

5726 - the Hunts cap. has the date code "HIH" = 23rd week of 1962. Perhaps sold with Top Boost already fitted.

It is perhaps worth adding that a chassis from late 1962, sold recently on its own (no cabinet, no speakers), seems to have gone back to the factory to have Top Boost added in 1965 (pots with January '65 date codes) - either that, or a repairman installed it from a JMI kit.

The page on has been updated with the details above. Further material to be incorporated shortly.

26th June

A set of pictures of now added to the existing entry. It may be necessary to move the earliest copper panel amps (serial numbers in the high 4000s) to a page of their own in due course.

25th June

Pictures of AC30 Super Twin serial number 5726, probably ready for sale early in the last quarter of 1962, have now been and on the early Super Twins page. The amp was issued from factory with a Top Boost unit.

24th June

Thanks to Greg, pictures coming soon of AC30 Twin serial number 5255B, originally beige vinyl, painted black early on.

AC30 Twin serial number 5255B.

23nd June

Sold earlier this year, a cabinet with its original serial number plate - 10920T, the lowest number to have emerged so far explicity designated as a "Treble" model. The speakers from the cab, sold separately, had the date code "29AJ" = 29th January 1964. Details of the chassis, also sold separately, to follow.

22nd June

An entry has now been created for .

20th June

Thanks to Steve, pictures of AC1/15 serial number 3645, early 1959, have been .

AC1/15 serial number 3645.

15th June

Thanks to Steve, some pictures coming of AC30 Twin serial number 17169T, on the left in the picture below. The amp is fully original, and in superb condition, not a changed part - the Brimar valves fitted at factory are still present. The AC30 was bought new in 1965 and then put away, unused, for many years.

The serial number of the amp on right is 15614T. At back, a gorgeous Fender Twin Reverb from 1964.

A detail of the Burndept inspection stamp in the preamp of 17169T. Note how the chassis is raised up from the slider board on washers. This was also standard JMI practice for AC50s and AC100s. When amps were repaired these washers were generally not replaced.

11th June

Thanks to John, pictures of AC1/15 serial number 3542, mid 1958, (around half-way down), along with entries for two amps with unknown serial numbers - probably originally in the high 3500s. Two existing entries have been updated. More to follow soon.

AC1/15 serial number 3542, mid 1958.

10th June

March 1963, a detail of Paul McCartney's new 2x15" bass cabinet from a promotional picture - The Beatles and Vox equipment - widely circulated in the music press: JMI getting very fancy with black and white Shepherd castors for the wheeled trolley.

John and George's AC30 stands in the advert have no castors or wheels of any sort.

8th June

Thanks to Steve, some shots of the electronics of a Jennings Model C organ from 1956. Top: the main tray containing the note generator assemblies for the seven octaves of the keyboard, and the vibrato module. Below, details of one of the oscillator/generator assemblies (producing the 12 notes for the octave in view) - wired up by Jean, one of the members of the organ department in 1956.

7th June

A quick look through the Letraset catalogue of 1981 shows that the logo adopted for the revised Domino range (of late 1964) was produced in a species of "Microgramma Bold Extended" font, the chief differences in the Jennings version being a greater thickness of letter form and rounded "corners".

So far, an analogy has not come to light in the standard range of fonts for the earlier Domino logo with a pair of lips for the "O".

Detail from an early Domino logo.

6th June

A detail from a shot of The Rolling Stones in early 1966 with a protoype two or three channel Super Twin amplifier, probably transistor, controls front facing. A combo version was shown at the Russell Hotel Trade Fair in August 1964. More to follow in due course.

5th June

Caught at the Dallas International Guitar Show earlier this year (beginning of May), a flight of three Vox Dominos - two Domino Reverbs in new-style livery of late 1964; and a Domino Bass, probably also of late '64.

Two of the three amps were modified together relatively recently, new sockets (with large metal surrounds) added to their back panels.

Also present, what may be restored (or possibly repro) Domino Bass cabinets. The piping seems unusually wide. There is no socket on the speaker cabinet.

2nd June

Six new entries for AC10 Twins with serial numbers in the high 3000s/4000s (mid 1963 to Spring 1964) have been . In the mid 4000s a new number sequence, starting at 1000, was assigned to the model. This coincided with the move to a new-style "thick-edged" cabinet.

1st June

Three AC10 Twins with serial numbers in the 1600s - late 1964 (possibly in the case of number 1689, early 1965) - .

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.