The excessively microphonic and vibration susceptible EF86 pentode pre-amp tube was replaced with less costly and more docile ECC83/12AX7 twin-triode pre-amp tube.
This twin-triode tube permitted the addition of a third "brilliant", or specialised "lead guitar" channel which closely emulated the sound of the AC30/4's pentode driven architecture.
The AC15's smaller siblings - the AC2 (fitted with a 6" speaker), soon to become the 8" Elac speaker equipped AC4, and the 10" equipped AC10 (made in single and twin speaker versions), were similarly configured. From late 1958/1959 onwards VOX AC15s (and their smaller siblings) featured a top strip of covering material above the distinctive VOX diamond patterned speaker cloth.
This new "classic" design would continue on into VOX's later generations of products (including the yet to be announced and now ubiquitous AC30), although the colour of the covering material was to subsequently trend towards black.
Can we imagine our bespectacled hero with a Telecaster around his neck, or did fate exercise control when the Stratocaster was chosen??
To the left is my home-grown (kinda) tribute to Bruce's "never did go there" Telecaster.
The 6 digit code indicates what manufacturer made the speaker and when it was made. Here is a list of some of the speaker manufacturers and their EIA codes: So, the speaker in the image above would have been made by Jensen (220) during the 27th week of 1951 or 1961.
The year is confusing because it is only a single digit.
In late March 2010 after weeks of rumour and speculation, Music Ground closed in the face of the appointment of a liquidator. Leo Fender's principal legacy to the music world was the enduring Fender Stratocaster.
It'd be awesome if you could upgrade to a modern browser, especially Chrome and Firefox as that is the best out there right now. You might find some of the information useful in determining which speaker would be best suited to your application.
The picture is a section of the basket rim of a speaker.
Marvin's sound, and his acquisition of Britain's first Fender Stratocaster - the famous Serial #34346. Although not strictly a part of The Shadows legacy of "that sound" (fokelore dictates that Bruce never actually played one - despite archival television footage which clearly shows him doing just that), it is hard to ignore that magic looking Telecaster (with the remnants of the swing tag still on it) hanging on Bruce's chair on the cover of The Shads first album "The Shadows" ( in the country of origin ! The irony of this guitar is that THIS is the model that James Burton was playing in the USA when the famous #34346 Stratocaster (now owned and played by Bruce) was ordered for Hank.
Hindsight (especially the 20/20 variety we all possess) is a wonderful thing.