BBC GE4/504 Gresham Lion Electronics Ltd. Dual standard Pulse & Bar Generator. These were commercially available and used by the GPO amongst others. A Valve unit.
Needed for our OB van restoration, www.mcr21.org.uk
Found some nice pictures of the unit, but Still searching for a real one!
There must be one somewhere....
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BBC Pulse & Bar gen GE4/504
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BBC Pulse & Bar gen GE4/504
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