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Old 25th Aug 2019, 12:58 am   #12
Synchrodyne
Nonode
 
Join Date: Jan 2009
Location: Papamoa Beach, Bay of Plenty, New Zealand
Posts: 2,943
Default Re: Marconi NS702 / 2207E, SN 623 (Atalanta type) receiver

It would appear that the bandspread facility is entirely mechanical in nature, not using a separate bandspread tuning capacitor:

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Name:	Marconi Atalanta 2207C IM p.19 Bandspread.jpg
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Thus on versions not factory-equipped with marine HF bandspread, the user would be free to choose six bandspread ranges as desired and to mark the scales accordingly.


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