Check the listing for details. NEW Varispeed / VSO Control for Studer A80 A80R A80RC A80VU w extended cable. Listed at 335.00 USD. This is a brand new, built to order external VSO (Vari-speed) control for Studer A80 reel to reel tape machines WITH 25 FOOT CABLE. This is a complete 'Plug-n-Play' solution that allows a broad range of speed control in any machine equipped with a .372 .374 or .377 Capstan Control Card. These are made with top-quality parts from Bourns, Amphenol, Alcoswitch and Dale/Vishay. We have two different styles available: the mini-console (pics 1/2) and the hand-held (pics 3/4) - please advise as to which you prefer PRIOR to BUYING. These are brand new and MADE TO ORDER, please allow 2-4 weeks for delivery. ****The 'Studer' logo on the samples pictured is for display purposes only, intended to show the model of machine with which they are compatible. We are in no way affiliated with Studer and they no longer manufacture any parts/accessories for tape machines.