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Perpetuum Ebner Rex Deluxe alignment - Printable Version

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Perpetuum Ebner Rex Deluxe alignment - morzh - 12-21-2020

I feel the turntable deserves a separate thread as it is, well, a thing in itself.

I am almost done with the record changer.

Almost, because I am trying to make the disks drop one at a time when the cycle is on.

I have just adjusted the height of the tonearm to the required 2-3/4" above the platter when it is raised; I am not sure about the spindle.
It does go up and down but either the record does not fall, or they all fall, or the tonearm is stuck and it takes manually turning the spindle a bit and then something clicks and the tonearm returns and tries to fall on the record.
The feeler works.

The spindle is this (photo)


   


If the bottom small black cylinder that is used to pull the spring record holders down is pulled all the way, it feels that it clicks into that position.
I am not sure what it should be like. If someone knows please tell me. Including whether it is simply inserted in the center or it should be aligned in a certain way.


I am more of an electronics guy, and not really mechanical type. To some degree I can handle but this changer is really complex.



RE: Perpetuum Ebner Rex Deluxe alignment - Phlogiston - 12-21-2020

Yeah, me too, but the other day I looked up a Dual 1009 and I guess that Ebner was related. Anyway the discussion was on a similar spindle and the "small pieces of rubber" that provided some friction so that only one record drops.

That is it. Maybe yours also had some rubber parts that are missing.


RE: Perpetuum Ebner Rex Deluxe alignment - morzh - 12-21-2020

Russ


Maybe...I am not sure how it would work with rubber pieces though.


RE: Perpetuum Ebner Rex Deluxe alignment - morzh - 12-21-2020

Russ

I found the service manual (someone on the ARF pointed me to it).
It indeed talks about rubberized holders that do not let all the records slide at once.

I THINK I see them. It is either hardened rubber or it is gone altogether.


RE: Perpetuum Ebner Rex Deluxe alignment - Arran - 12-22-2020

This may explain why many of the West German radio-phono combos I run into seem to have the changers missing, whilst the North American and Japanese ones usually don't, unless the changer was a 78 only machine. The BSR and Garrard changers seem to last forever, with the V.M and Webcor ones further down.
Regards
Arran


RE: Perpetuum Ebner Rex Deluxe alignment - morzh - 12-22-2020

Arran

Yes, German radios while good while working, used some things that made them vulnerable.
One of them, and it seems to plague 100% of the particular model with the acoustics I have, is the foam ring in he main speaker - it turned to dust in every single radio.
This rubber thing would be doomed eventually too. The changer relies on it for all the records not to fall down.

Unfortunately there are no good pics of it in either of the two docs I have.

I almost feel like becoming a RadioMuseum member: it seems like the best [lace so far with the restoration of German radios is there.

In fact I found a thread where a guy in the US needed the spindle for the same changer I have and someone there just gave it to him for the price of shipping it here.


RE: Perpetuum Ebner Rex Deluxe alignment - Arran - 12-29-2020

Mike;
  That has to be the oldest set of speakers I have seen with a foam hinge/surround, most of the West German sets I have seen have paper ones just like the majority of North American and British sets would. I didn't think that foam became popular until the 70s, and almost ubiquitous with speakers of the 1980sm though some of the latter were actually a rubber. I'm often though that using leather from a chamois might work as a substitute, but then so would cloth.
Regards
Arran


RE: Perpetuum Ebner Rex Deluxe alignment - morzh - 12-29-2020

Well, I take it, foam even of the later production, 79s, 80s is prone to the same problem; the speaker shops specifically describe it as a popular problem and even suggested the name: Refoaming. They all perform the procedure.
But what they show is holes in the foam while mine, same as with others with the same radio, the foam fully fell apart into dust all around the circumference. Good thing I did not damage it by playing it.
Now that it has been re-foamed, it sounds very nice.


RE: Perpetuum Ebner Rex Deluxe alignment - rfeenstra - 12-29-2020

Common problem on many speakers that Allen Organ Co. used. I literally get dozens at a time redone by The Circuit Shop here in Grand Rapids, MI. Both 15" and 4" drivers. They love me! They rub their hands together with glee when I walk in with boxes of speakers. At least they give a quantity discount.


RE: Perpetuum Ebner Rex Deluxe alignment - morzh - 12-29-2020

Are newer speakers also prone to this? Like those mad in 90-s or in 21st century?


RE: Perpetuum Ebner Rex Deluxe alignment - Phlogiston - 12-29-2020

If they use foam. The stuff just doesn't last forever. But it is not hard to replace.


RE: Perpetuum Ebner Rex Deluxe alignment - rfeenstra - 12-29-2020

The newer replacements I have used will often be a neoprene annulus. However, the repaired speakers are still foam. I'll be long gone before they will have to be replaced again!