Revox A77 ELECTRONIC Control Systems & Audio upgrade overhaul kit for Mk 1 - 4

Nagravox

$260.00 AUD
 

Model A77 E

Capacitor & Preset Pot Upgrade Kit for Revox A77 reel to reel tape recorders. 

For all models mk1 - mk4 and both transistor and IC speed control versions.  

 This kit contains:

  • replacement capacitors for all the electrolytics

  • replacement for all tantalum capacitors

  • brand new specially manufactured non polarised motor capacitors

  • all  suppression capacitors on the drive control, capstan and  power supply

  • all special high voltage suppression resistor replacements

  • a full set of fully enclosed cermet type preset trimmers
  • 3x chassis mounted motor capacitors
  • 1x Large PSU can capacitor stud mount as per original

  • New Audio relay for record relay board

 All these circuit boards are catered for:

  • PSU 1.077.540
  • Tape Drive 1.077.370

  • Switchboard 1.077.435/426

  • Input amp 1.077.700  

  • Record 1.077.705  

  • Oscillator 1.077.712  

  • Record relay 1.077.715 

  • Playback amp 1.077.720

  • Speed control    1.077.725   and 1.077.724 or /729

  • Comprehensive instruction manual
  • Support to help you if you have a problem

TOTALS:  Capacitors =81.   Preset trimmers & resistors = 26.   + ~Misc hardware. 

 

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