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General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
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3rd Aug 2019, 10:44 pm | #1 |
Retired Dormant Member
Join Date: Feb 2019
Location: Toronto, Ontario, Canada
Posts: 10
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Grundig 9078 Speaker Connection
Hello
I have recently restored a Grundig 9078 USA. Was wondering if anyone can help and let me know what kind of speaker connections these are on the back? Thank you. |
4th Aug 2019, 5:45 am | #2 |
Dekatron
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,215
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Re: Grundig 9078 Speaker Connection
If you mean what plug fits that socket, there were plugs used in continental Europe with 2 round pins to fit the socket contacts and either a round or flat unconnected pin between them. One reason for the unconnected pin was to prevent the plug being inserted in a mains wall socket (I am pretty sure it would fit otherwise, some manufacturers would 'park' the mains plug in, say the speaker socket for shipment).
Philips (and I guess others) had a convention where one type of unconnected pin was used on an input socket, the other on an output. I can't remember which was which but I can find out if anyone needs to know. Your socket has a central hole that would take either. In any case, a pair of normal 4mm plugs will normally fit the active contact holes in said socket. Those are a lot easier to find than the odd European plug. |
4th Aug 2019, 4:50 pm | #3 |
Retired Dormant Member
Join Date: Feb 2019
Location: Toronto, Ontario, Canada
Posts: 10
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Re: Grundig 9078 Speaker Connection
Hello Tony
Thanks for the response. I was thinking that one was for left and the other for the right hand side speaker. I guess this is just one speaker. Also just referenced the instruction book and it says a speaker may be used meaning just one. :-P I'll use some 4mm and see what happens and let you know. Thank you! |
4th Aug 2019, 5:05 pm | #4 |
Retired Dormant Member
Join Date: Feb 2019
Location: Toronto, Ontario, Canada
Posts: 10
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Re: Grundig 9078 Speaker Connection
Tony
It totally worked! Thanks again! |