Planar Speaker Asylum

Welcome! Need support, you got it. Or share your ideas and experiences.

Return to Planar Speaker Asylum

Planar Speaker Asylum

Re: ESL57_ screw size?

70.168.149.162

[ Follow Ups ] [ Post Followup ] [ Thread: Display All Email ] [ Planar Speaker Asylum ]

Vince_H

(A)

In Reply to: Re: ESL57_ screw size? posted by pickle on December 6, 2005 at 16:25:03:

Thanks everyone for your info.
The bolts are not 10-32 not M4 or M5, I have difficulty finding one that fit,
Bill: What is BA thread ? something unique ? I am reluctant to re-thread, afraid that i will damage them permanently
Anyone know if I can buy these from Europe?
Thanks
Vince

Follow Ups:

Re: ESL57_ screw size? - AJ 19:04:23 12/06/05 (0)
I think I understand the problem. The original screws were hand formed by diaphanous Grecian nymphs and imported into Great Britain during the earlier part of this century under heavy cover. They have interesting resonant properties that uniquely conform to the (formerly) SAE thread orifice presented by the female mounting stub located at the four most folded corners of the laminated steel transformer shell. This explains your struggle.
Seriously, I have three pairs of ESls and 3 spare output transformers. I went to the extent of removing an original screw and used an ordinary 10-32 thread and it works...additionally, took the original screw and spun on an ordinary 10-32 nut and it works fabulously. Sooo you might have an odd ball or sometimes aligning the screw is a real pain: loosen the two that you have in there so that the tranformer almost flops and put a little silicone grease on the end of a 10-32 screw and it should work.. The studs the screws fit into are brazed on they may have been deformed in the original process or could have been damaged by a previous owner??? Try a brass screw as this is softer and will "conform" without doing further damage if you have to....I need to get a life...Good luck with it hope this helps!
Re: ESL57_ screw size? - drquad 18:45:07 12/06/05 (0)
In truth, we've had a little fun at your expense but I know you are frustrated with the flippant answers to your very legit question. If it's any consolation, I have had to tap out several Quad audio transformer housings over the years. Customers would bring in speakers for repair & make no mention of one or more missing screws. In the very old days English Quad could supply "Screw 2BA 1.25 ch. steel" (Part No. TB220DA) but I'm afraid that era is long over. Still, you could write to Quad's service dept. & maybe get lucky. I'd love to hear from you if you can find the real McCoy.
Sandro
- http://www.geocities.com/drquad@pacbell.net (Open in New Window)

This post is made possible by the generous support of people like you and our sponsors:

Schiit Audio

You can not post to an archived thread.