Re: 'Beau Decca 131 projection receiver 1950'
The Cyldon Type "C" tuner as fitted in my Decca 121. I believe John's 131 has a similar tuner. I've seen other Decca projection sets which have had this type of tuner installed. Perhaps it was a factory sponsored multi channel conversion?
Valves are ECC84 and ECF80. Note the two B8A plugs to facilitate easy conversion.
DFWB.
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