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Old 15th June 2003, 07:14 PM   #1
316a is offline 316a  England
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Default Woollett Electrostatic Tweeters

Hello ,
Just picked up a pair of old electrostatic tweeters for next to nothing . Made by Woollett , 'upper register speaker' in the 1950's these use an 8"x5" curved element . Both have smart-looking veneered cabinets but have very crude looking perforated steel stators using curtain hooks to clamp the stator assembly together The EHT supply is inside an enclosed dome attached to the the stator assembly , both units are in excellent condition internally with vacuum-varnished transformers . The stator assembly appears to use cotton to provide spacing , some of the cotton has broken at the front but I don't see that posing too much of a problem . Does anyone have any advice regarding testing such panels ? So far I have only inspected the eht sections and removed excess dust . Otherwise if anyone has experience with these in the past , and the things are crap , let me know and then I'll just chuck 'em and not bother

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Old 22nd December 2004, 05:16 PM   #2
arkitek is offline arkitek  United Kingdom
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Thumbs up Woollett Electrostatic Tweeters

These are excellent HF electrostatics, I have been using a pair since the late 1950'2 - YES 1950's and they still cannot be beaten by anything with a cone!
Woollett also made a full range speaker using the above incorporated into a Bass reflex cabinet, I also have a pair of these bought from Woollett in 1962 and in every day use.
Don't be put of by what appears to be a DIY construction they last for ever. If you like to E-mail me I will send you a picture. Unlike many electrostatics they can be driven with solid state PA's without them taking off or showing an signs of distress, the PA that is!! There is nothing to wrong except the transformer might give up on early models - however the later models, post 1962, had no transformer and the AC was applied directly to the element to charge it.
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Old 22nd December 2004, 05:49 PM   #3
SY is offline SY  United States
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Any chance you could size the pic appropriately and post it? I'm quite curious.
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
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Old 23rd December 2004, 05:12 PM   #4
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Curved with cotton for a diaphragm support/spacer?

Sounds suspiciously similar to the Stanton Isophase ESL.

That used a wooden "aircraft wing" style construction for the curved frame, and foam for the spacers on either side of the diaphragm. It was about 3 ft wide and 2ft tall... curved horizonatally.

I own one that had decomposed foam/diaphragm. I attempted a
rebuild which was only partially sucessful (many years ago).

Iirc, the speaker is featured in Vol I of the AES Louspeaker Anthology series.

http://www.bearlabs.com -- Btw, I don't actually know anything, FYI -- every once in a while I say something that makes sense... ]
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Old 19th August 2007, 09:27 AM   #5
latala is offline latala  United Kingdom
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Default electrostatic tweeter

I have just picked up a dead Woollet unit does any one have any info as I would love to get it working !
It seems on initial inpection that the rectifier elements are defunct.
regards Trev
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Old 5th August 2008, 08:30 PM   #6
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After all, these are Shackman origin tweeters.

The units have been sold as OEM by Alex Shackman to a couple of speaker manufacturers in the UK and in the world.

Repair and refurbishment possible here -->

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Old 7th August 2008, 07:44 PM   #7
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I beg your pardon.
The correct writing of the addresses is:

Repair and refurbishment possible here -->

Sorry again
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Old 8th August 2008, 11:08 AM   #8
a.wayne is offline a.wayne  United States
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Excellent stuff, Keep it coming guys...................................
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Old 8th August 2008, 11:39 AM   #9
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Lol, Reiner. You can't even get your own hosts correctly?

I'd say that's what you get from hostname spamming. A nasty habbit with one single purpose: to trick search engines into listing you more and higer than your competition. It's considered bad practice by every search engine.

Together with your obvious borderline-advertising spam in this thread, this put's you in the shady category in my book.
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Old 8th August 2008, 01:42 PM   #10
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Ahh Mr. Reiner Roemer! Do you remember me? You bought a speaker measurement system in an Apple II computer (remember those!) from me.
I think it must have been early 80's?
Small world!

Edit: Reiner your account creation doesn't work and generates a Mail Error.

Jan Didden
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Linear Audio Vol 13 is out! Check out my Autoranger and SilentSwitcher
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