The Vox V261 Delta six string guitar was offered in the 1967 "Vox, It's Whats Happening" and the 1968 "The Sound That Travels With the Stars" catalogs. A reprint of these catalogs are available at North Coast Music. This solid body, two pickup guitar was based on the signature Vox "Phantom" body shape and featured a number of onboard nine-volt battery operated special effects. The headstock featured fancy inlaid scrolls and Vox logo. A removable padded pad was snapped to the rear of the guitar body.
The 1968 US Vox catalog described the Delta six string guitar as follows:
"An exciting solid body six string in the famous VOX Phantom design. Has built-in E tuner, distortion booster, treble and bass boosters, repeat percussion. Has a redesigned neck that is fast and easy-to-fret. Has two exclusive VOX Ferro-Sonic high output, wide range pickups. Fully adjustable bridge. Has true spring action vibrato. One volume and two tone controls. 3 position selector switch. Chrome plated tuning heads. White."
The 1968 US Vox price list indicated that the retail price of the Delta was $375 USD. In 2011 dollars, the Delta would retail for about $2400.
The Delta was produced for Vox in Italy by Eko. A decal on the back of the head stock states: "Made for Vox in Italy."
The circuitry for all the onboard effects in the Delta was designed into a single module. Often this module was sealed and encapsulated, making it not repairable or replaceable. Additionally, the Vox wiring diagram for this guitar includes no repair information for these modules. If you find that changing the 9 volt battery that powers the internal effects does not correct a malfunctioning effects circuit, you should consider the onboard features permanently inoperative. Replacement modules have not been available for over twenty years.