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 Post subject: Unknown Turntable Adapter Port
PostPosted: Feb Wed 21, 2018 3:58 pm 
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Does anyone know what this adapter port is for? It's on a mid 60's German Imperial turntable and amplifier console. It's about 1.25" in diameter, has a coax cable coming off the underneath that plugs into the amp. I've never seen this. It sits behind the turntable in the console.

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Johnny

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 Post subject: Re: Unknown Turntable Adapter Port
PostPosted: Feb Wed 21, 2018 4:40 pm 
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Location: ZIP 23831 South of Richmond, VA 25 miles down the pike.
It might help to know to what it connects to amp.

Bill J.


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 Post subject: Re: Unknown Turntable Adapter Port
PostPosted: Feb Wed 21, 2018 4:45 pm 
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It could be for a TEFI endless loop tape phonograph cart player.

https://en.wikipedia.org/wiki/Tefifon

Robert


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 Post subject: Re: Unknown Turntable Adapter Port
PostPosted: Feb Wed 21, 2018 5:36 pm 
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I can only guess that it's an auxiliary jack Bill. It's in German and is labeled "Hilfs". It's English translation is Auxiliary. That's an interesting article Robert. It could be that. See if someone else chimes in.

Thanks,
Johnny

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 Post subject: Re: Unknown Turntable Adapter Port
PostPosted: Feb Wed 21, 2018 5:44 pm 
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The big part to the left is a European two-pin power socket - a two pin Euro power plug fits into it. Probably auxiliary power for an accessory.

I can't see the detail of the smaller black area to the right to comment on that.

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 Post subject: Re: Unknown Turntable Adapter Port
PostPosted: Feb Wed 21, 2018 7:24 pm 
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That smaller black area is a three pin female socket Brian.

Johnny

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 Post subject: Re: Unknown Turntable Adapter Port
PostPosted: Feb Thu 22, 2018 8:12 pm 
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Educated guess: German power socket is as stated to send power to something else - much like receivers in the States have extra sockets on the back for TT tape deck etc.

3-pin DIN plug is used in Germany as well to send or receive stereo sound from/to an auxiliary usually non TT line level source.

Only stereo Tefifon players have both - the mono players have two-pin - one larger and one smaller or occasionally one flat and one rounded like a speaker plug - but so do any number of German-made stereo cassette and reel transports.

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 Post subject: Re: Unknown Turntable Adapter Port
PostPosted: May Thu 10, 2018 7:08 pm 
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I've been working on this German Imperial console PE-66 phonograph for months. Tonearm was busted and I repaired that. Then it got broken again this time beyond repair. Guy found a donor PE-66 in England supposedly NIB. Had it shipped here and it looked like it had been run over by a truck. Even had a busted tonearm.

I was able to make one good turntable out of the two that I now had. Neither cartridge or stylus were good so I purchased a P228 cartridge and stylus from Gary at VM Audio. Installed the new cartridge with new wiring that I also ordered from him.

Now I have very low volume and it only works with the amp in the Mono switch position. Audio only out of one speaker when in the Stereo position. Either way it's very low volume. Checked my connections at the cartridge and all's good. Owner says it played with normal audio levels before the original tonearm was busted.

The P228 is supposed to have about 1 volt output and be compatible with this amplifier. I have no idea what this original PE-66 cartridges' output was. Is it possible that I got a bad cartridge from Gary? Or is this possibly an amp problem?

Johnny

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 Post subject: Re: Unknown Turntable Adapter Port
PostPosted: May Thu 10, 2018 7:30 pm 
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Maybe these sites can assist re: cartridge.
Hotwax

https://www.vinylengine.com/library/per ... e-66.shtml

https://www.radiomuseum.org/r/perpetuum ... _pe_6.html


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 Post subject: Re: Unknown Turntable Adapter Port
PostPosted: May Thu 10, 2018 8:08 pm 
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Location: ZIP 23831 South of Richmond, VA 25 miles down the pike.
You can test your amp with another audio input.

Bill J.


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