Identfication required: Vintage Octal Adapter
 

Hi. Can someone please identify this octal adapter and what it would be used for? Thanks.

Re: Identfication required: Vintage Octal Adapter
 

Maybe if the two sockets go to pins 2 and 7 it's to access heater volts?

Otherwise someone will need actually to recognise it!

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.

Re: Identfication required: Vintage Octal Adapter
 

I'd be tempted to unscrew the screws and have a look inside!

Andy

Re: Identfication required: Vintage Octal Adapter
 

Xtal socket?

Lawrence.

Re: Identfication required: Vintage Octal Adapter
 

Go for it with a continuity buzzer before you bother with opening it up.
It looks pristine.

Re: Identfication required: Vintage Octal Adapter
 

It looks identical to some of the oddball sockets I got with a used Digital readout Chinese Tube Tester. The set of adaptor sockets came in a beautiful wood case.