Tunny Rebuild
Tunny Rebuild - Under the spotlight
The Tunny Rebuild display was officially opened on 26th May 2011.

"The rebuild of the Tunny machine was begun by Don Skeggs in the early 1990s in conjunction with the start of the rebuild of Colossus. Work on Tunny was suspended after a few years, but was restarted by a team led by John Pether and John Whetter in 2005. The rebuild was in four stages: the one-wheel Tunny to ensure that timing circuits and relays worked properly, followed by the five-, seven- and twelve-wheel Tunny. At each stage, the rebuild was tested to ensure that it had been completed successfully. As with the Colossus rebuild, key components for the Tunny rebuild were salvaged from decommissioned analogue telephone exchanges, kindly donated by BT."

Photo: Tunny Rebuild © LSA June 2012.

| EXIT | Tunny Rebuild |


The Tunny Rebuild was completed during 2011. The period setting of the equipment gives a very authentic theme to the gallery.

Teleprinter Output
The output teleprinter is located on a side desk, for convenience.

Photo: Output teleprinter © LSA June 2012.
Power supply control
The power supply control racking looks impressive.

Photo: Power supply control © LSA June 2012.
Post Office Uniselectors
Post Office uniselectors with spark-quench capacitors above and a blue lamp No.8 on the rack tie-bar.

Click photo for a larger image.

Photo: Top of Tunny rack © LSA June 2012.
Tunny Jackfield
Tunny Jackfield.

Photo: Tunny Jackfield © LSA June 2012.
Slave clock
Post Office slave clock, showing the correct time. More tie-bars and lamps no. 8, on the power rack.

Photo: A slave clock © LSA June 2012.
Lighting control and wall telephone
Venner timeswitch for lighting control and an early wall telephone.

Photo: Lighting control © LSA June 2012.

Design, images and text compiled by © Light-Straw. Page last updated August 2015 revision.

All logos and trade marks are the property of their respective owners and are used on the Light Straw site(s) for review only. Students and researchers are recommended to make their own independent enquiries as to the accuracy of the information contained therein.