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USSR
Rotor
Fialka
  
Fialka Reference Manual 2.0
ISBN 978-90-79991-01-3

When we first found a Fialka machine in 2005, no information about this machine was available on the internet or elsewhere. So we decided to reverse-engineer the machine and recreate the entire circuit diagram from scratch. All we had available was one machine, a German Operator's Manual and a badly damaged machine that we were allowed to take apart. And so we did.

The result is a 140+ page manual with hundreds of drawings, photographs and circuit diagrams.

 Download the Fialka Reference Manual
 Information
  
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NOW AVAILABLE FREE OF CHARGE

6 January 2021 — To provide a little support in these difficult corona times, we have deciced to make the Fialka Refrence Manual available free of charge, 15 years after its initial release. In the past it was available in printed form for EUR 55, but now it is totally free. Download it below and print it yourself [A]. Printed copies of the manual are no longer available, but may return to the museum shop later.

If you support our work, you might want to consider making a small donation.
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What's in the manual?
  • History of Fialka
  • Description of the various models
  • Detailed drawings of all parts of the machine
  • Explanation of the Russian markings on the machine
  • Description of each of the accessories
  • Detailed mechanical description
  • Detailed electrical description
  • Comparison between Fialka and Enigma
  • Clear block diagrams
  • Detailed individual circuit diagrams
  • Full circuit diagram in colour (A3 size)
  • Pin-out of all internal and external connectors
  • Description of the various wheel sets, with full wiring details
  • Hints & Tips on repairing a Fialka
  • Details on how to create key cards
Documentation
  1. Paul Reuvers & Marc Simons, Fialka Reference Manual 2.0
    Full technical details of the Russian M-125 (Fialka) cipher machine (in English language).

  2. Addendum to the manual: Polish PSU
    This document contains information about the TEMPEST-complient Polish PSU that was not present in the 2.0 edition of the book (22 June 2009).

  3. Addendum to the manual: Hungarian 5K wheel wiring
    This file replaces page 75 of the manual (version 2.0) and includes the wiring of the Hungarian 5K wheels, that was not available when the manual was first publised.
Further information
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Crypto Museum. Created: Monday 14 July 2014. Last changed: Saturday, 06 March 2021 - 16:00 CET.
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