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Author Topic: Nuremburg Ralley PA ?  (Read 14519 times)

Mike Diack

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Nuremburg Ralley PA ?
« on: December 08, 2014, 03:53:12 pm »

There are thousands of pictures around of Hitler ranting into bottle mics (presumably Neumann) at the ralleys, but none of the long shots of the field seem to show any speakers. What was between the mics and the ears of the hundreds of thousands of listeners? Amps? Speakers? and dare I say it - time alignment?.
M
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Steve M Smith

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Re: Nuremburg Ralley PA ?
« Reply #1 on: December 08, 2014, 04:38:19 pm »

Not sure... but yes, the mics were Neumann (or Telefunken).  In fact, one model is sometimes referred to as the Hitler Microphone.

Time alignment... not likely!


Steve.

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Mike Diack

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Re: Nuremburg Ralley PA ?
« Reply #2 on: December 08, 2014, 06:50:28 pm »

Time alignment... not likely!
Steve.
The Germans were way ahead of the field with magnetic recording technology, and I have some vague recollection of some sort of rotating disc with movable heads for short time delays.
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Ivan Beaver

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Re: Nuremburg Ralley PA ?
« Reply #3 on: December 08, 2014, 07:09:23 pm »



Time alignment... not likely!


Steve.
I have heard (cannot confirm) that delay was achieved in the early days by running a small speaker into a tube with a mic at the other end (plane wave tube).

This tube could then be coiled up to the length needed.

The mic would supply the delay system.
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A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

Steve M Smith

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Re: Nuremburg Ralley PA ?
« Reply #4 on: December 09, 2014, 02:49:06 am »

This tube could then be coiled up to the length needed.
That's a clever idea, but wouldn't the length needed be equal to the distance between the speakers?  That could be quite a lot of tube!

The Germans were way ahead of the field with magnetic recording technology
They had a machine which recorded on wire at that time.  Have a look on Dave Rat's YouTube channel.  He gives a demonstration of one which he got hold of.

EDIT: Here it is: https://www.youtube.com/watch?v=_qCenGzoTTA

 
Steve.
« Last Edit: December 09, 2014, 02:52:41 am by Steve M Smith »
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Jonathan Goodall

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Re: Nuremburg Ralley PA ?
« Reply #5 on: December 09, 2014, 03:47:31 am »

A shot of speakers (i think) from ~37 seconds
https://www.youtube.com/watch?v=7ceLnMT0rps
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Ivan Beaver

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Re: Nuremburg Ralley PA ?
« Reply #6 on: December 09, 2014, 07:41:00 am »

That's a clever idea, but wouldn't the length needed be equal to the distance between the speakers?  That could be quite a lot of tube!
They had a machine which recorded on wire at that time.  Have a look on Dave Rat's YouTube channel.  He gives a demonstration of one which he got hold of.

EDIT: Here it is: https://www.youtube.com/watch?v=_qCenGzoTTA

 
Steve.
Hence the reason for coiling it up-or it could be run to the location of the speakers (assuming the amp was at the speaker location.

Yes a lot of tube-but money was not an issue.

And consider in the old days how expensive delay units were.  That buys a lot of tubing.

Times have change quite a bit.  I still remember my first digital delay.  You could only select times in 5ms increments (yes 5ms).

It was VERY noisy-so you HAD to drive it real hard (Iright before clipping) and then reduce the gain on the amps to get the noise to an almost acceptable level..

Things are SOOOOOO much easier these days.

But you learn a lot when you don't have a lot of toys to play with :)
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A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

Ivan Beaver

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Re: Nuremburg Ralley PA ?
« Reply #7 on: December 09, 2014, 07:41:49 am »

A shot of speakers (i think) from ~37 seconds
https://www.youtube.com/watch?v=7ceLnMT0rps
Looks like big horns to me :)  They worked back then and still work today.  Something most manufacturers have forgotten.
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A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

Jeff Bankston

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Re: Nuremburg Ralley PA ?
« Reply #8 on: December 09, 2014, 05:33:20 pm »

Looks like big horns to me :)  They worked back then and still work today.  Something most manufacturers have forgotten.
I use 60x40 DDS 2-60X Pro horns in my PA system. They are 21"H x 18.5"W. I have smaller 65x50 DDS 2-65Pro horns in my home and rehersal system. They are 14.5"W x 8"H. There no comparrison between the 2 horns. The bigger is way better for PA use. I use Radian 850PB drivers in all the horns. Heres an old foto of one of the big DDS horns. My bass drums are 22".
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Milt Hathaway

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Re: Nuremburg Ralley PA ?
« Reply #9 on: December 09, 2014, 06:15:24 pm »

I use 60x40 DDS 2-60X Pro horns in my PA system.

That's not a horn.

THAT'S is a horn:
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Milt
FitzCo Sound, Inc.
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