[Boatanchors] base connections for tube type Y697

[CLIVE COLLINS]

Good evening gentlemen,
Can anyone help with the base connections of a tube type Y697 and the heater volts please.
Cant find any references to this tube and it looks very much like a 4CX250 but I need more details please.
Thank you in advance and all good wishes,
 
Clive GW3WEQ
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