Re: A Hallicrafters S27
I hadn't realised that the original O/P Tx was designed to load into a couple of 'unusual' impedances - there are two pairs of binding-posts on the rear of the chassis that are too gungey at the moment to read the impedances marked on them.
[An impedance-matcher built into the speaker was not unusual: the HRO Senior had the same arrangement, though *that* had the anode current to the output valve flowing out to the speaker and back again. Destructive screen-current in the output-valve if you didn't connect the speaker!]
The story about a RAF 'officer' [actually one of R.V.Jones's team - technically a civilian - in a hired uniform] being ordered to go to Webbs Radio in Soho and get all their S27s is told in the "Secret War" BBC series and associated book: apparently he bought their entire stock - on credit!
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