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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders.

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Old 9th Jul 2018, 1:37 pm   #1
radiozero
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Default Identfication required: Vintage Octal Adapter

Hi. Can someone please identify this octal adapter and what it would be used for? Thanks.
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Old 9th Jul 2018, 2:14 pm   #2
Herald1360
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Default 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!
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Old 9th Jul 2018, 7:13 pm   #3
vidjoman
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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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Old 9th Jul 2018, 9:00 pm   #4
M0FYA Andy
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Default Re: Identfication required: Vintage Octal Adapter

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

Andy
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Old 9th Jul 2018, 9:11 pm   #5
ms660
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Default Re: Identfication required: Vintage Octal Adapter

Xtal socket?

Lawrence.
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Old 9th Jul 2018, 9:18 pm   #6
Refugee
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Default Re: Identfication required: Vintage Octal Adapter

Go for it with a continuity buzzer before you bother with opening it up.
It looks pristine.
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Old 16th Jul 2018, 10:01 am   #7
FrankB
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Default 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.
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