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Old 9th Jul 2018, 7:13 pm   #3
vidjoman
Dekatron
 
Join Date: Jun 2013
Location: East Sussex, UK.
Posts: 3,315
Default Re: Identfication required: Vintage Octal Adapter

Have you checked which pins are connected to the two on the top?. Also check if any other pins on the octal end are shorted. Many jukebox and other amps used the speaker plug to short the centre tap of the HT transformer winding to earth to remove the HT to protect the o/p transformer if the speaker plug was removed.
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