20070408.ba v04_n039.bam.20070408 >From ???@??? Sun Apr 8 14:24:17 2007 -0500 Date: Sun, 8 Apr 2007 19:23:07 GMT From: Old Tube Radios To: Old Tube Radios Subject: BOATANCHORS digest 4039 Message-Id: <20070408192308.89659470165@srvr1.theporch.com> BOATANCHORS Digest 4039 Topics covered in this issue include: 1) Re: Speaker Repair by "Brian A Clarke" 2) Re: Speaker Repair by Garey Barrell 3) Re: Speaker Repair by WA5CAB@cs.com 4) Re: Speaker Repair by "Arden Allen" 5) Re: Speaker Repair by Robert Nickels 6) Re: Speaker Repair by wb3fau@att.net 7) Fw: johnson knob by "JAMES HANLON" 8) Re: Speaker Repair by "Arden Allen" 9) Re: Speaker Repair by Steve Berg 10) Re: Speaker Repair by Jack Harper 11) Speaker Repair, Final Report by Mike 12) Speaker repair by "Herbert M. Rosenthal" 13) Re: Speaker repair by wb3fau@att.net 14) Re: Speaker Repair by wb3fau@att.net 15) Speaker repair by Scott Robinson 16) Mic Wire Needed by Mike 17) RE: Mic Wire Needed by "Art Lebermann" 18) Re: Speaker repair by "John K9UWA" 19) Collier and Beale radio by Tom B 20) Re: Hallicrafters Panel Refinishing by WA1KBQ@aol.com 21) Re: Hallicrafters Panel Refinishing by "Arden Allen" ---------------------------------------------------------------------- Message-ID: <012e01c778af$968bc220$0202a8c0@Belkin> From: "Brian A Clarke" To: Old Tube Radios Subject: Re: Speaker Repair Date: Sat, 7 Apr 2007 10:56:33 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Hi Mike, It depends on the cone material. If it's paper, use a paper-wetting type glue and stick a patch over the tear. If it's a plastic cone, then you need to find a glue whose solvent doesn't damage the cone material - latex or silicone-based cement is usually fairly safe. Have a careful look at the roll surround - if it's starting to show signs of collapse, replace it with a modern foam surround - you will need to remove the centre dust cap in order to ensure centring of the voice coil over the pole piece - then fit a new dust cap. The bass response will improve out of sight. Chances are the shop that sells you the roll surround and replacement dust cap can supply the correct cement for the repair, as well. If the cone can be seen, spray a dull black paint over the cone to hide the repair[s]. 73 de Brian, VK2GCE ------------------------------ Message-ID: <4616EF8E.1080705@mindspring.com> Date: Fri, 06 Apr 2007 21:10:38 -0400 From: Garey Barrell MIME-Version: 1.0 To: Old Tube Radios Subject: Re: Speaker Repair Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit General Cement offered their "Service Cement", which was a clear, flexible glue similar to the old "airplane" glue used for _wood_ model aircraft. Hopefully you could just fit the tear back together and glue the edges together. If there was actually a hole, with missing paper, we used toilet paper or paper towel to make a patch and glued the edges. Too much glue could result in rattling or I actually saw one "repair" where there was so much glue it pulled the voice coil down causing it to rub. Cutting the old blob of glue out and replacing it with a TP patch solved the problem. 73, Garey - K4OAH Atlanta Drake 2-B, 4-B & C-Line Service Supplement CDs K0DAN wrote: > Bqack in my Novice days, we used nail polish to repair small holes & > tears in speaker cones. > > 73 > > dan > k0dan > > > ----- Original Message ----- From: "Mike" > To: "Old Tube Radios" > Sent: Friday, April 06, 2007 7:15 PM > Subject: Speaker Repair > > >> What's the best method to repair a 3/4" star shaped tear in a speaker >> cone? The cone material is all there and the sides of the tear are >> touching, my guess is glueing - what's the best kind? >> >> Mike VE7MMH >> > > ------------------------------ From: WA5CAB@cs.com Message-ID: Date: Fri, 6 Apr 2007 22:29:39 EDT Subject: Re: Speaker Repair To: Old Tube Radios MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_c29.11e9b96e.33485c13_boundary" --part1_c29.11e9b96e.33485c13_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Mike, AES (and probably others) still carry the Service Cement. I use it regularly to repair cones in BC-611 microphones and earphones. It works OK on both the black paper (early) and plastic (late) cones. >From your description of a "star shaped tear", I have the mental picture of a small puncture with tear lines radial from the center. If that is the case, before applying the cement, use a thin probe with a short hook on the end to pop the triangles back out. If cone material is actually missing, the only patch or filler I would be willing to use would be material cut from another speaker of the same type. If the cone has circumferential ridges or furrows molded into it near the outer edge and the tear goes through those and you need a patch, you will need to cut the patch from that area of the organ donor. Allow at least a day for the cement to cure before testing. And if you need to hide the patch by painting, don't do that until after after initial testing. > General Cement offered their "Service Cement", which was a clear, > flexible glue similar to the old "airplane" glue used for _wood_ model > aircraft. >----- Original Message ----- From: "Mike" > >To: "Old Tube Radios" > >Sent: Friday, April 06, 2007 7:15 PM > >Subject: Speaker Repair > > > > > >>What's the best method to repair a 3/4" star shaped tear in a speaker > >>cone? The cone material is all there and the sides of the tear are > >>touching, my guess is glueing - what's the best kind? > >> Robert Downs - Houston (Web Store) MVPA 9480 (Primary email) (Backup email) --part1_c29.11e9b96e.33485c13_boundary Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ---REMAINDER OF MESSAGE TRUNCATED--- * * This post contains a forbidden message format * * (such as an attached file, a v-card, HTML formatting) * * Mail Lists at theporch.com only accept PLAIN TEXT * * If your postings display this message your mail program * * is not set to send PLAIN TEXT ONLY and needs adjusting * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * --part1_c29.11e9b96e.33485c13_boundary-- ------------------------------ Message-ID: <003d01c7790c$95d967d0$11e47443@KB6NAX> From: "Arden Allen" To: Old Tube Radios Subject: Re: Speaker Repair Date: Sat, 7 Apr 2007 05:02:08 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I'm assuming the cone is paper. General Cement service cement is ideal if it has not gotten too thick. You can thin it with acetone. Clear finger nail polish is also excellent, again if not too thick, and the applicator brush is ideal for repairing speaker cones. You don't need to apply a lot of glue for the edges of the tear(s) to be securely bonded together. Allow a good hour for the glue to cure. Arden Allen KB6NAX ------------------------------ Message-ID: <4617BF01.7010009@oneradio.net> Date: Sat, 07 Apr 2007 10:55:45 -0500 From: Robert Nickels MIME-Version: 1.0 To: Old Tube Radios CC: Old Tube Radios Subject: Re: Speaker Repair Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Arden Allen wrote: > Clear finger nail polish is also excellent, again if not too thick, and the applicator > brush is ideal for repairing speaker cones. > > I agree with Arden...this was a trick taught to me by my Dad who later did become a ham but seemed to know how to fix anything when I was a kid. And today at age 84, still does! Now, if you don't have a YL or XYL to go to the drugstore and buy you some, well you're on your own there... 73, Bob W9RAN ------------------------------ From: wb3fau@att.net To: Old Tube Radios Cc: Mike Subject: Re: Speaker Repair Date: Sat, 07 Apr 2007 16:42:45 +0000 Message-Id: <040720071642.12223.4617CA050002CF8400002FBF21603831169A0E00CC0D99@att.net> Mike, you can use any good hardware store variety paper glue. Or you can get a bottle of GC Electronics service cement- available from- Antique Electronics Supply in AZ. I have a speaker in a Zenith console with a badly torn up cone, i used the hardware store stuff- plays fine- no rattles. Russ. ------------------------------ Message-ID: From: "JAMES HANLON" To: Old Tube Radios Cc: "Mike Tortorella" Subject: Fw: johnson knob Date: Sat, 7 Apr 2007 10:59:52 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0041_01C77903.DE335F80" This is a multi-part message in MIME format. ------=_NextPart_000_0041_01C77903.DE335F80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Y'all, If you can turn up a Johnson knob for my friend, Mike Tortorella, W2IY, = we would both appreciate it. Please correspond directly with Mike at = w2iy@verizon.net . =20 Thanks and 73, =20 Jim Hanlon, W8KGI ----- Original Message -----=20 From: Michael Tortorella=20 To: w8kgi@arrl.net ; = knjhanlon@msn.com=20 Sent: Friday, April 06, 2007 8:27 PM Subject: johnson knob Jim, I turn to you as my prime contact with the Johnson world....I need one maroon no-skirt Johnson knob, preferably without the white indicator but with would be OK. Can you help or point me to someone who can? Happy Easter and 73 Mike ------=_NextPart_000_0041_01C77903.DE335F80 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ---REMAINDER OF MESSAGE TRUNCATED--- * * This post contains a forbidden message format * * (such as an attached file, a v-card, HTML formatting) * * Mail Lists at theporch.com only accept PLAIN TEXT * * If your postings display this message your mail program * * is not set to send PLAIN TEXT ONLY and needs adjusting * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ------=_NextPart_000_0041_01C77903.DE335F80-- ------------------------------ Message-ID: <001e01c77938$7fc2a2a0$91e47443@KB6NAX> From: "Arden Allen" To: Old Tube Radios Cc: "Old Tube Radios" Subject: Re: Speaker Repair Date: Sat, 7 Apr 2007 10:14:02 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit > ...Now, if you don't have a YL or XYL to go to the drugstore and buy you > some, well you're on your own there... Last time I ran out I went to the drugstore myself. I expected to get some funny looks from the gals in the store shopping in the same area. I didn't even get a sideways glance. Welcome to 2007 (it helps to be ugly too) ;-) Arden Allen KB6NAX ------------------------------ Message-ID: <4617D8BB.5040705@tbc.net> Date: Sat, 07 Apr 2007 12:45:31 -0500 From: Steve Berg MIME-Version: 1.0 To: Old Tube Radios Cc: Old Tube Radios Subject: Re: Speaker Repair Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit I used to buy nail polish to use to touch up resist on the PC boards I was making at work. Almost any company has their resident Avon Lady, and I got my needed nail polish that way. Actually, there is little embarrassment to buying cosmetics as a red blooded All American Man. When I showed up at the cosmetics counter to buy some for my old girlfriend, all the sales personnel ignored me for quite a while. I guess a a big fellow, 6'6" tall, 300 pounds with a leather jacket, gloves, combat boots and a helmet is not viewed as a potential customer. Steve WA9JML Arden Allen wrote: >> ...Now, if you don't have a YL or XYL to go to the drugstore and buy you >> some, well you're on your own there... > > Last time I ran out I went to the drugstore myself. I expected to get some > funny looks from the gals in the store shopping in the same area. I didn't > even get a sideways glance. Welcome to 2007 (it helps to be ugly too) ;-) > > Arden Allen > KB6NAX > > > > ------------------------------ Date: Sat, 07 Apr 2007 15:18:28 -0600 To: Old Tube Radios From: Jack Harper Subject: Re: Speaker Repair Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1"; format=flowed Content-Transfer-Encoding: quoted-printable Message-Id: <20070407211831.84E36470032@srvr1.theporch.com> At 11:45 AM 4/7/2007, Steve WA9JML wrote: >...I guess a a big fellow, 6'6" tall, 300 pounds=20 >with a leather jacket, gloves, combat boots and=20 >a helmet is not viewed as a potential customer. Difficult to say, these days... Regards to the List, Jack, W=D8YJ (Friend to all things Hammarlund) ------------------------------ Date: Sat, 07 Apr 2007 14:51:53 -0700 From: Mike Subject: Speaker Repair, Final Report To: Old Tube Radios Message-id: <000901c7795e$f456bb80$6801a8c0@ap62a1b6df0067> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original Content-transfer-encoding: 7bit The clear nail polish "glue" and coffee filter "patch" repair worked very well - thanks to all. Mike VE7MMH ------------------------------ Message-ID: <46182ECC.2070205@comcast.net> Date: Sat, 07 Apr 2007 17:52:44 -0600 From: "Herbert M. Rosenthal" MIME-Version: 1.0 To: Old Tube Radios Subject: Speaker repair Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Long ago and far away, in addition to repairing hols in the cone, I was taught by my Elmer to re-center the voice coil if the glue was even partially gone from the rim-not to just slop more glue on the rim. In them there days, GC made a Speaker Cement in a bottle with a brush applicator-quite like what's been described here over the past few days. The only difference was that it dried much faster than nail polish or the GC Radio Cement. Oh, yes, the centering was done by using scraps of photo negative, each cut to a point-5 or 6 of them were pushed into the space around the magnet, opposite pieces done together. The rim was then glued to the speaker cone and held with pinch clothes pins until the glue dried. Surprising what one found inside the grille cloth-and usuallu piercing the cone: lots of Crayola pieces, paper clips, other such things a child had access to. Herb W5AN ------------------------------ From: wb3fau@att.net To: Old Tube Radios Cc: "Herbert M. Rosenthal" Subject: Re: Speaker repair Date: Sat, 07 Apr 2007 23:35:00 +0000 Message-Id: <040720072335.2444.46182AA40007EBC30000098C21603762239A0E00CC0D99@att.net> I recently had an old RCA floor console with a "warped" voice coil- as in out of round- my old time elmer told me to first- loosen the pole piece then stick wedges of stiff paper around the gap, finally take spray bottle of water and dampen the voice coil so as to reform the roundness of the voice coil. tighten the pole piece back down and secure. Let voice coil dry for 24 hours. remove the paper shims- it worked! coil centered and no more rattles. Russ. ------------------------------ From: wb3fau@att.net To: Old Tube Radios Cc: Jack Harper Subject: Re: Speaker Repair Date: Sat, 07 Apr 2007 23:43:53 +0000 Message-Id: <040720072343.9518.46182CB90004668E0000252E21603762239A0E00CC0D99@att.net> I suspect you could also use some fast drying urethane varnish? ------------------------------ Mime-Version: 1.0 Message-Id: Date: Sat, 7 Apr 2007 16:37:56 -0700 To: Old Tube Radios From: Scott Robinson Subject: Speaker repair Content-Type: text/plain; charset="us-ascii" ; format="flowed" Mike, I use Silicone RTV, whose advantages are two: 1) It doesn't shrink as it sets the way solvent evaporation glue does, and so doesn't distor the shape of the cone' 2) It stays flexible after setting. Good luck! /scott ------------------------------ Date: Sat, 07 Apr 2007 17:46:07 -0700 From: Mike Subject: Mic Wire Needed To: Old Tube Radios Message-id: <000801c77977$4bb71fb0$6801a8c0@ap62a1b6df0067> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original Content-transfer-encoding: 7bit Does anyone have available about 6' of wire suitable for connecting a mic to a 2 prong Amphenol plug. Probably 1 conductor inside the shield, and 1 conductor outside the shield would work. (Definately not the "curly" cable that retracts on itself.) Mike VE7MMH ------------------------------ Message-ID: <380-220074081811218@earthlink.net> From: "Art Lebermann" To: Old Tube Radios Subject: RE: Mic Wire Needed Date: Sat, 7 Apr 2007 18:08:11 -0700 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Mike.... I have some Belden 9399 mic cable. This is rubber covered (brown), with 2 conductors and a braided shield. It's 0.195 inch OD, and very flexable. Would that work for you? Art Lebermann W6REQ > [Original Message] > From: Mike > To: Old Tube Radios > Date: 4/7/2007 5:46:47 PM > Subject: Mic Wire Needed > > Does anyone have available about 6' of wire suitable for connecting a mic to > a 2 prong Amphenol plug. Probably 1 conductor inside the shield, and 1 > conductor outside the shield would work. (Definately not the "curly" cable > that retracts on itself.) > > Mike VE7MMH ------------------------------ From: "John K9UWA" To: Old Tube Radios Date: Sun, 08 Apr 2007 07:18:09 -0500 MIME-Version: 1.0 Subject: Re: Speaker repair Message-ID: <46189731.23187.38243A@k9uwa.arrl.net> Content-type: text/html; charset=US-ASCII Content-transfer-encoding: 7BIT Content-description: Mail message body

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3M #77 Spray Glue ... get it at your local Walmart

It stays flexible and doesn't shrink

If you need to "Patch" a speaker cone use Coffee Filter paper as
it has no regular grain and therefore won't tear in a few years.

I probably average one of these a week since I restore old consumer
type wooden radios. Have been using 3M Spray Glue and Coffee Filters
for many years and never had a problem with one after it was repaired.

John k9uwa
John Goller, K9UWA & Jean Goller, N9PXF
Antique Radio Restorations
k9uwa@arrl.net
Visit our Web Site at:
http://www.JohnJeanAntiqueRadio.com
4836 Ranch Road
Leo, IN 46765
USA
1-260-637-6426
 
------------------------------ Date: Sun, 08 Apr 2007 08:27:34 -0400 To: Old Tube Radios From: Tom B Subject: Collier and Beale radio Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Message-Id: <20070408122702.657645721@mail.nova.org> Hello All, I have a radio that was made by Collier and Beale of New Zealand that was specially made for polar expeditions. It is a model 557HF. I can send photos to anyone that is interested in seeing the set. Does anyone out there know anything about this radio or the company? Tom Bryan N3AJA ------------------------------ From: WA1KBQ@aol.com Message-ID: Date: Sun, 8 Apr 2007 08:51:40 EDT Subject: Re: Hallicrafters Panel Refinishing To: Old Tube Radios MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1176036700" -------------------------------1176036700 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Lynn did several SX-88 front panels for me that were perfect. We worked together to get the right gray and just the right degree of semi-gloss appearance (near flat) and he knocked down the brightness of the usual refrigerator white silk-screened nomenclature to achieve an "aged" white that turned out to look perfect. He did dial glasses for me too at the time. I guess he got tired of dealing with us because as far as I know he does not do it anymore. I feel fortunate to have the three or four he did for me and I don't know that I really want to take a chance on anyone else. Some of the other offerings out there just don't look original (too glossy, clear coat, etc.). Shame he is out of the business. I wonder if there is enough money to be made in this to encourage someone else to start another one up and offer top quality work for a price that would be profitable? Typically radio people (and hams in particular) do not want to pay a lot for something so perhaps not. No offense intended, just stating what I have learned over the years. The old radio hobby does not work the same as say the old car hobby where there are a lot of cottage industries to support the demand for reproduction work. Greg ************************************** See what's free at http://www.aol.com. -------------------------------1176036700 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ---REMAINDER OF MESSAGE TRUNCATED--- * * This post contains a forbidden message format * * (such as an attached file, a v-card, HTML formatting) * * Mail Lists at theporch.com only accept PLAIN TEXT * * If your postings display this message your mail program * * is not set to send PLAIN TEXT ONLY and needs adjusting * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -------------------------------1176036700-- ------------------------------ Message-ID: <002a01c77a13$21715030$49e47443@KB6NAX> From: "Arden Allen" To: Old Tube Radios Subject: Re: Hallicrafters Panel Refinishing Date: Sun, 8 Apr 2007 12:21:24 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit > ......Typically radio people (and hams in particular) do not > want to pay a lot for something.... What's missing is a book of instructions on how to paint and make silk screens. As long as the art is dying out for old radios we better get something on paper before it's too late. Many a business has only been successful after it has taught its costomers how to use its products. I don't think the raw materials are likely to vanish soon. Of course the future may mandate that everything in life be done virtually as we raise our kids in petri dishes.. :-( Arden Allen KB6NAX ------------------------------ End of BOATANCHORS Digest 4039 ******************************