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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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8th Aug 2018, 12:30 pm | #1 |
Triode
Join Date: Oct 2014
Location: Sydney, Australia
Posts: 17
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Speaker terminals
I need some help identifying a couple of speaker terminals, and if they could be converted over to RCA terminals.
The first photo is from a Kriesler stereo, and the second is from an early 1970’s record player. If you can help me, thank you. |
8th Aug 2018, 2:09 pm | #2 |
Dekatron
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Re: Speaker terminals
The first photos shows SOCKETS, not terminals. But they are not for speakers. Look on the back for a pair of the 2 pin DIN type. There is little point in converting to RCA Plugs, as 99% of speakers don't use them. Use DIN plugs hard wired to 42 or 79 strand speaker cable.
The second photo shows what looks like old Wander Plug sockets, probably added by a previous owner and are not recommended. There should be a pair of hard-wired leads terminating in 2 x RCA Phono plugs for each channel. From the wording you have used, I suspect you may not be familiar with older HiFi equipment, so please advise.
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8th Aug 2018, 2:22 pm | #3 | |
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Re: Speaker terminals
Quote:
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8th Aug 2018, 2:30 pm | #4 |
Nonode
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Re: Speaker terminals
My little Decca extension speakers have unequal pin sockets like that - they came with the plugs and they look a lot like transformer taps. The ones in photo 1 are DIN of some kind - 3 in a row like that? Could be speaker connectors I suppose. I would be inclined to change them all to 4mm screw terminals rather than RCA.
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8th Aug 2018, 3:21 pm | #5 |
Dekatron
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Re: Speaker terminals
The Kriesler ones look like 4 pin jobs to me.
Lawrence. |
8th Aug 2018, 11:49 pm | #6 |
Nonode
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Re: Speaker terminals
They are a bit weird aren't they? Could even be 5 pin 240 degree! But there doesn't appear to be a key slot! Need a better picture please.
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9th Aug 2018, 5:06 am | #7 |
Dekatron
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Re: Speaker terminals
They don't look like DIN sockets to me, I can't see where the metal can round the plug pins would go into.
They look a bit like the sockets used on some car audio units in the 1970s/1980s. Every manufactuer seemed to have their own pin layout, there was (back then) a universal plug with a plastic moulding with about 10 holes and wires/pins that you put in the right holes for the unit you were using. On car audio, they were used for all the connections (speakers, +12V, ground), but here I guess they are for speakers only. Can you look inside the unit to see how many of the 4 contacts are wired? |
9th Aug 2018, 5:57 am | #8 |
Banned
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Re: Speaker terminals
The first sockets:-
They were common in Australia. They are from the 50's and 60's. I even have a few "somewhere". They were also used with "separate " units, like in radiograms with remote amplifiers, they carried the power to the input and tone controls. The second socket I have seen used in battery construction. Big 9 volt batteries from 1960 transistor radios had that dissimilar sized two pin sockets. I hope that's of some help. Joe |
9th Aug 2018, 6:36 am | #9 |
Dekatron
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Re: Speaker terminals
As Tony says open em up to see what's what, if your unsure post some pics. You can use a couple of binding posts or even easier to fit - banana sockets. Binding posts need a flat for them not to turn, banana sockets just need a hole drilling.
Andy.
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9th Aug 2018, 9:46 am | #10 |
Dekatron
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Re: Speaker terminals
Maybe a small notch filed on one side of the hole too if the banana sockets are posh ones.....
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9th Aug 2018, 3:47 pm | #11 |
Pentode
Join Date: Feb 2018
Location: Cheshire, UK.
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Re: Speaker terminals
The second photo is the type of speaker socket that Armstrong used to use on their 400/500 series amplifiers. The plugs are available on eBay, search for Armstrong Speaker Connectors.
Last edited by Station X; 9th Aug 2018 at 4:08 pm. Reason: Disguised eBay reference. |
9th Aug 2018, 4:22 pm | #12 |
Rest in Peace
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Re: Speaker terminals
Here is an enlarged image of one of the sockets in the first photo.
I don't ever remember seeing a socket like this before. Its definitely not a DIN socket Mike |
9th Aug 2018, 5:59 pm | #13 |
Pentode
Join Date: Jul 2013
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Re: Speaker terminals
Very odd socket indeed.There appears to be a vague outline of a fifth pin position at 12o'clock.I remember 4 and 5 pin sockets of this type on Japanese vtr's such as Shibaden in the early 1970's used possibly for power feeds.The lack of a key for correct insertion is provided by the spacing of the pins,two close together and two wider apart with a central pin.In a 1994 edition of a Maplin catalogue a 5 pin DIN version is shown and is described as special.This one is even more so.Peter.
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9th Aug 2018, 9:06 pm | #14 |
Retired Dormant Member
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Re: Speaker terminals
If it were mine, I think I'd fit DIN speaker sockets in their place. Horrible things I know, but they'd save any butchery, and are bearable if the setup is 'plug and forget', particularly if Deoxit or similar is applied on assembly.
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9th Aug 2018, 11:07 pm | #15 |
Nonode
Join Date: Jun 2014
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Re: Speaker terminals
It would be interesting if there was an Australian standard here - I note the OP is in Australia. But what did the plug look like? Not like a DIN plug presumably as there is nowhere for the shroud to go. Can you take a pic of a plug that fits, Joe?
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9th Aug 2018, 11:16 pm | #16 |
Dekatron
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Re: Speaker terminals
Don't forget that DIN speaker plugs had no shroud.
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9th Aug 2018, 11:46 pm | #17 | |
Nonode
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Re: Speaker terminals
Quote:
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16th Aug 2018, 1:10 am | #18 |
Triode
Join Date: Oct 2014
Location: Sydney, Australia
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Re: Speaker terminals
Indeed they are for speakers. Here is another pic.
As for the other player, these were the sockets that came with the player. I used to have the speakers for it but they were misplaced during a few moves. I was told that they were Leslie connectors but not too sure if that is correct. The reason why I want to change to RCA plugs is so I can connect to an amp I have that takes RCA plugs. |
16th Aug 2018, 1:13 am | #19 |
Triode
Join Date: Oct 2014
Location: Sydney, Australia
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Re: Speaker terminals
I might add that the Kriesler came with no speakers so I can’t send a pic of the plugs. From what I remember as a kid I had a Kriesler that took these kind kind of plugs but I can’t remember if they were a 3 pin or a 4 pin
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16th Aug 2018, 8:22 am | #20 |
Dekatron
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Re: Speaker terminals
Why would you want to connect speaker output sockets to another amplifier? That makes no sense.
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