[NJARC] Speaker repair
kolson at rcn.com
kolson at rcn.com
Mon May 26 15:32:23 EDT 2014
On the cone, what you DON'T want is something overly flexible like rubber cement . The cone shouldn't flex in normal operation (except for certain drivers with intentionally introduced compliance intended to try and "broadband" the driver like the Altec "biflex" units and then only where the compliance is ), the surround and spider flex to allow the cone to move, hopefully in one piece as a piston.
The fabric softener sheet impregnated with white glue is not a bad idea, some people use toilet tissue impregnated with white glue with a patch on both sides of the cone. The patch can be painted with matching paint, if desired.
Kevin
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Subject: NJARC Digest, Vol 121, Issue 17
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_______________________________________________
Today's Topics:
1. Speaker repair (Rob Flory)
2. Re: Speaker repair (Al Klase)
3. Re: Speaker repair (w2wiq1 at juno.com)
4. Re: Speaker repair (Al Klase)
5. Requested Coast Guard Radio Info (Ray Chase)
6. Looking for a 5BP4 CRT (David Sica)
----------------------------------------------------------------------
Message: 1
Date: Sun, 25 May 2014 12:09:22 -0400
From: Rob Flory <farmer.rob.flory at gmail.com>
To: New Antique Radio Club <njarc at mailman.qth.net>
Subject: [NJARC] Speaker repair
Message-ID:
<CAFcNxxW9zo5-8yvy+xe75Wf3nJGLeUn=v-WvCsot--UMLiVReQ at mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
I love the idea of the fabric softener material. Easy to find and pretty
tough.
Because it is in my drawer already, I might use rubber cement.
I can't remember what I used when I last fixed a speaker cone, over ten
years ago. Sometimes when I think something is a good idea, it is because
it worked for me a long time ago and I just can't remember doing it. I
think the converse is true when I am uneasy about an idea.
Rob
------------------------------
Message: 2
Date: Sun, 25 May 2014 12:36:35 -0400
From: Al Klase <ark at ar88.net>
To: njarc at mailman.qth.net
Subject: Re: [NJARC] Speaker repair
Message-ID: <53821C13.4050501 at ar88.net>
Content-Type: text/plain; charset=windows-1252; format=flowed
Steve and Rob,
I'm not sure what you guys mean by "fabric softener material." Dryer lint?
Anyway, I've always used rubber cement, or contact cement. You want
something that stays flexible. Plus a patch made from paper towel, or
similar absorbent stuff that will soak up some of the cement.
Al
Al Klase ? N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/
On 5/25/2014 12:09 PM, Rob Flory wrote:
> Just remember
> Reply = Poster
> Reply All = Everyone
>
> _________________________________________________________
> I love the idea of the fabric softener material. Easy to find and pretty
> tough.
>
> Because it is in my drawer already, I might use rubber cement.
>
> I can't remember what I used when I last fixed a speaker cone, over ten
> years ago. Sometimes when I think something is a good idea, it is because
> it worked for me a long time ago and I just can't remember doing it. I
> think the converse is true when I am uneasy about an idea.
>
> Rob
> ______________________________________________________________
> NJARC mailing list
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> Please help support this email list: http://www.qsl.net/donate.html
------------------------------
Message: 3
Date: Sun, 25 May 2014 17:56:17 GMT
From: "w2wiq1 at juno.com" <w2wiq1 at juno.com>
To: ark at ar88.net
Cc: njarc at mailman.qth.net
Subject: Re: [NJARC] Speaker repair
Message-ID: <20140525.135617.22851.0 at webmail07.dca.untd.com>
Content-Type: text/plain; charset=windows-1252
HI AL:
DRYER SHEETS ARE USED IN THE DRYER TO SOFTEN AND ELIMINATE STATIC FROM THE CLOTHS.THEY ARE TOUGHA ND BETTER THAN TOWELS OR TISSE.
I ALSO USE THEM TO REMOVE STATIC FROM METER COVERS.
WALTER-W2WWIQ
---------- Original Message ----------
From: Al Klase <ark at ar88.net>
To: njarc at mailman.qth.net
Subject: Re: [NJARC] Speaker repair
Date: Sun, 25 May 2014 12:36:35 -0400
Just remember
Reply = Poster
Reply All = Everyone
_________________________________________________________
Steve and Rob,
I'm not sure what you guys mean by "fabric softener material." Dryer lint?
Anyway, I've always used rubber cement, or contact cement. You want
something that stays flexible. Plus a patch made from paper towel, or
similar absorbent stuff that will soak up some of the cement.
Al
Al Klase ? N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/
On 5/25/2014 12:09 PM, Rob Flory wrote:
> Just remember
> Reply = Poster
> Reply All = Everyone
>
> _________________________________________________________
> I love the idea of the fabric softener material. Easy to find and pretty
> tough.
>
> Because it is in my drawer already, I might use rubber cement.
>
> I can't remember what I used when I last fixed a speaker cone, over ten
> years ago. Sometimes when I think something is a good idea, it is because
> it worked for me a long time ago and I just can't remember doing it. I
> think the converse is true when I am uneasy about an idea.
>
> Rob
> ______________________________________________________________
> NJARC mailing list
> Home: http://mailman.qth.net/mailman/listinfo/njarc
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:NJARC at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
______________________________________________________________
NJARC mailing list
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------------------------------
Message: 4
Date: Sun, 25 May 2014 14:35:45 -0400
From: Al Klase <ark at ar88.net>
To: njarc at mailman.qth.net
Subject: Re: [NJARC] Speaker repair
Message-ID: <53823801.5070907 at ar88.net>
Content-Type: text/plain; charset=windows-1252; format=flowed
Thanks Walt. Sounds like a good idea. Didn't know what they were
talking about, not my department. :-)
Al Klase ? N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/
On 5/25/2014 1:56 PM, w2wiq1 at juno.com wrote:
> Just remember
> Reply = Poster
> Reply All = Everyone
>
> _________________________________________________________
> HI AL:
>
> DRYER SHEETS ARE USED IN THE DRYER TO SOFTEN AND ELIMINATE STATIC FROM THE CLOTHS.THEY ARE TOUGHA ND BETTER THAN TOWELS OR TISSE.
> I ALSO USE THEM TO REMOVE STATIC FROM METER COVERS.
>
> WALTER-W2WWIQ
>
> ---------- Original Message ----------
> From: Al Klase <ark at ar88.net>
> To: njarc at mailman.qth.net
> Subject: Re: [NJARC] Speaker repair
> Date: Sun, 25 May 2014 12:36:35 -0400
>
> Just remember
> Reply = Poster
> Reply All = Everyone
>
> _________________________________________________________
> Steve and Rob,
>
> I'm not sure what you guys mean by "fabric softener material." Dryer lint?
>
> Anyway, I've always used rubber cement, or contact cement. You want
> something that stays flexible. Plus a patch made from paper towel, or
> similar absorbent stuff that will soak up some of the cement.
>
> Al
>
> Al Klase ? N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
>
> On 5/25/2014 12:09 PM, Rob Flory wrote:
>> Just remember
>> Reply = Poster
>> Reply All = Everyone
>>
>> _________________________________________________________
>> I love the idea of the fabric softener material. Easy to find and pretty
>> tough.
>>
>> Because it is in my drawer already, I might use rubber cement.
>>
>> I can't remember what I used when I last fixed a speaker cone, over ten
>> years ago. Sometimes when I think something is a good idea, it is because
>> it worked for me a long time ago and I just can't remember doing it. I
>> think the converse is true when I am uneasy about an idea.
>>
>> Rob
>> ______________________________________________________________
>>
------------------------------
Message: 5
Date: Mon, 26 May 2014 07:44:36 -0400
From: "Ray Chase" <raydio862 at verizon.net>
To: "NJARC" <njarc at mailman.qth.net>
Subject: [NJARC] Requested Coast Guard Radio Info
Message-ID: <028001cf78d7$df3ecb90$0201a8c0 at Muttley>
Content-Type: text/plain; charset="iso-8859-1"
The below message was forwarded to me. I suggested he should identify the radio equipment, frequency of operation and send photos. If you can provide any answers, please contact him directly.
Ray
In a message dated 5/24/2014 11:50:22 P.M. Eastern Daylight Time, rescuetwo at aol.com writes:
Dan,
This is Jeff Shook with the US Life-Saving Service Heritage Association. I need some technical assistance regarding Coast Guard radios in 1952 or slightly earlier era including a telescoping antenna used on 36 foot motor life boats. Do you know of anyone there at info age that can asset me please? I have some photos of what I am looking for. I need to either replicate or find some old stock of it on the internet. Can I e-mail this information to you or do you have someone else in mind who could assist me please?
Thanks,
Jeff Shook
------------------------------
Message: 6
Date: Mon, 26 May 2014 09:58:10 -0400
From: David Sica <dave.sica at njarc.org>
To: "njarc at mailman.qth.net" <njarc at mailman.qth.net>
Subject: [NJARC] Looking for a 5BP4 CRT
Message-ID:
<CAMh_1mVxo2-iUTzKWt+q2w7C_Pno7ii-XLkVAHmWPkEo53_=BQ at mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
While at the Early Television Museum last week I was able to test the
picture tube in my recently-acquired Andrea 1F5 prewar television. Sadly
(but as I was pretty much expecting) it is toast.
The original tube wasn't produced in great numbers so there probably aren't
too many 5AP4 CRTS tubes out there to be found. (This tube is also known by
it's RCA designation: 1802P4.)
A workable substitute is the much more common postwar 5BP4. I've seen these
show up often over the years, but of course not now when I need one. Might
anyone have a 5BP4 squirreled away in their stash that they'd be willing to
sell?
Thanks!
-- Dave Sica
732-382-0618
------------------------------
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