Studer A67 & B67 ELECTRONIC capacitor & trimmer overhaul kit


$477.00 AUD

FULL Capacitor and Electronic Service Kit for Studer A67 and B67 mk 1 & 2 
Includes PSU, Tape Transport & Control and Suppression Capacitor and mains filter overhaul kit and all audio cards including sync but not time code (very rare).
Don’t waste your time replacing just one or two capacitors on machines that are now 25 - 40 years old, replace ALL the troublesome electrolytics,  tantalums and suppression capacitors. Usually the old high voltage capacitors associated with the motors and tape drive will also be shot electrically and often even visually. Some capacitors may test ok on a low voltage modern tester, however capacitors usually need to be tested after they have operated for at least 10 hours (after being discharged and stored for many years) at working voltage and then tested under actual working voltage conditions. Modern testers cant do this. For such relatively low cost components its prudent to just replace the lot.  PLEASE NOTE:  If you have a 30"/sec machine, please tell me at time of purchase as the capstan motor takes a different capacitor to the more common standard 15"/sec machine. 

This kit contains parts for all boards and is highly recommended

  • Replacement capacitors for all the electrolytics including large PSU can type caps
  • Replacement for all tantalum capacitors
  • All troublesome suppressor capacitors on drive control, switching and mains suppression. 8x  X2 rated suppression capacitors.
  • 1x new recent manufactured mains filter module
  • Brand new specially manufactured non polarised motor capacitors. 2x (6.5uf 250 VAC + 1.5uf 250 VAC) special 3 terminal dual cap (separate 1.5uf that fits on outside easily) size 35mm D x 70mm H (overall height with terminals)
    1x 3.5uf 250 VAC 30mm D x 50mm H (overall height with terminals) For HS you need a higher capacity - please specify. 
  • Fully enclosed cermet type preset potentiometers
  • New mains filter module  
  • Recap / retrim parts for all audio boards and meter panel included

 This kit caters for the following circuit boards:

  • Power Supply
  • Stabiliser card
  • Tape Drive Control using TCA561 IC's as well as the later version using discrete IC's  - indeed ANY tape transport card fitted!
  • Tape Tension Sensor Boards - both sides.
  •  Mains Filter module - we have a new ones made specially for us to the same specification
  • Capstan Speed Control using TCA561 IC's as well as the later version using discrete IC's  - indeed ANY capstan card fitted!
  • Motor Control boards for each motor  - three boards catered for
  • Digital counter (for counter system)
  • All motor chassis mounted motor capacitors - 5
  • Record including various improved replacement resistors and capacitors associated with the erase / record circuitry that overheat and give problems
  •  Playback
  •  Oscillator
  •  Overload detector
  • Meter panel and monitor - includes multi-turn trimmers update
  • A comprehensive set of Nagravox service sheets / manual is provided to assist you with your overhaul. 
  • Factory updates


  • Capacitors over 217
  • Preset trimmers & resistors= 17  (3x multiturn precision for meter panel adjust)
  • Misc modules and mounting hardware = 5
  • Small “upgrade” blank labels are provided to mark your upgraded boards

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