[Microphones] Replacement E-V 664 mic element needed or repair - Info to List
Bill Marx
Bill Marx" <[email protected]
Wed, 17 Sep 2003 21:06:01 -0400
Copied from another list:
-Bill W2CQ
> > Stu and List Members,
> >
> > First, a BIG "thank you" to you and everyone who sent replies, and to CCA
> > for hosting this fine forum. All are appreciated, and once again, the
> > members have shown their vast knowledge and information. I meant to get
> > this summary out yesterday, but it was a rough day at the salt mines and I
> > came up a little short. I do want to be certain to post the results, as I
> > was rather surprised to see that the failure mode on my mic is (alas) not
> > all that uncommon.
> >
> > There were 3 categories of reply, which is fitting because there were 3
> > questions. I will concentrate here on the commercial and self-repair
> > routes. I did have one offer of a replacement element and another
> > gentleman informed me that he has a complete 664 looking for a new home.
> I
> > am going to defer any action along those lines for now in view of the
> > apparent good service from Telex; failing that, I may try a home repair.
> > However, one reply talked about hardening of the plastic diaphragms over
> > time - point taken, although I have not checked the diaphragm on my mic
> for
> > hardness.
> >
> > Several people gave me contact information for Telex, the company who
> > acquired E-V some years ago. The location seems to be where Hy-Gain used
> > to be in Lincoln, NE. Note that one responder says they may not support
> > the old mics. Well, I am posting all the goodies and will let you know
> > what I learn. I am rather busy at present and may not get to
> > follow-through on this for a few more weeks. If anyone else gives it a
> > try, please post. I'll do the same after trying for myself.
> > - - - - - - - - - - -
> >
> > Yes. Electro Voice is now owned and serviced by:
> >
> > Telex Communications Inc.
> > 8601 E Cornhusker Hwy
> > Lincoln, NE 68507 USA
> >
> > Toll-free: (800) 553-5992
> > Phone: (402) 467-5321 or (402) 467-5325
> > Fax: (402) 467-3279
> >
> > I just received my 676 back from service. It was an eBay purchase and I
> had
> > time for them to check it out. They changed the foam behind the
> > wind-screen, tested to specs, secured some switch used in the Low-Z mode,
> > and replaced the Hi-Z cable/connector assembly. Also supplied a mic-stand
> > clip, schematic and spec-sheet or my reference. Total cost was $20 plus
> $20
> > for the cable and $10 for shipping and taxes.
> >
> > Highly recommended, and they're humans working there!
> >
> > -Stu, k2qde
> >
> > EV /telex has a repair facility in Kansas for older ev mics They do not
> > have replacement elements that you can purchase but they found a way of
> > repairing the old element. also they do nice clean up on the mic. I have a
> > couple I need to send in I had two serviced and cleaned up they came back
> > looking new. cost me 100.00 for two mics.
> >
> > 73 Phil KG4LRU
> >
> >
> > I've gotten some miscellaneous parts directly from EV (now Telex) and they
> > just gave them to me. Try [email protected].
> >
> > Also, she told me the parts dep't telephone # is 800-685-2606. I would
> > probably call the parts # for something that might be expensive like the
> > voice coil.
> >
> > GL,
> > Russ WQ3X
> >
> >
> > How about calling EV www.electrovoice.com - they have supplied parts
> for
> > very old mikes that I have adopted!
> >
> > 73,
> >
> > Bill Riches, WA2DVU
> > dB Electronics
> > Cape May, NJ
> >
> >
> > After some difficulty in getting to the right people, I contacted
> > Electro Voice some time back about buying a replacement element. They
> were
> > very kind and apologetic, but informed me that EV does not support the 664
> > line of mikes with "any" spare parts-let alone the element. (Nor does any
> > after market house). 73, Dick YS1UL
> >
> >
> > I've dealt with E-V in the past and they're pretty helpful with
> > supplying replacement parts. Try calling them at this number:
> > 800-827-6701. [Note that this is different number than listed above. -
> > WA9ENA]
> > Let us know how you make out. GL/73,Rich WB3JLK
> >
> > CCA #331
> >
> > - - - - - - - - - - - - -
> >
> > Next, there were some suggestions for home repair:
> >
> > Answer to question 1.- Yes! I do this routinely. Pick up a small bottle
> of
> > silver (real silver) paint, which is available at good craft stores, or
> > from
> > Ernest Fullam,a microscopy supply OR buy a "circuitworks" pen at the
> > electronics store (this has silver paint in it for repairing PCB traces)
> > simply put a spot of paint on the broken connection,and bury the tinsel
> > wire
> > in it. Work great on dynamic mics and small speakers, alternatively, if
> you
> > have the patience of Job and a tiny soldering iron and .010 solder, you
> can
> > solder it back on. I reccomend the former approach, so you don't melt the
> > diaphragm.
> >
> > Scott
> >
> >
> > Having done some broadcast engineering in past years, I have salvaged
> > similar mike problems by using a very small iron, low temp solder, fine
> > wire
> > and literally "tacking" a new wire across the break. If you can
> > successfully "re-unite" the wires, then you can reinforce the repair with
> > some epoxy or similar material to make it hold up with use.
> > Even if you are successful with the repair, 664s typically have "stiff"
> > diaphrams due to aging affects and they don't produce the highs at all and
> > even the mid-range is sometimes cut back several db from the original.
> > Therefore, they sound quite basey. Dick YS1UL
> >
> > - - - - - - - - - - - - -
> >
> > There you have it, List members. I had more replies than pasted in here,
> > but the others were either similar to these or were the offers for mics or
> > parts. Again, all reples were appreciated. Anyone with updates please
> > contact me or post. Like I said, this appears to be a fairly common
> > failure.
> >
> > 73, Dale
> > WA9ENA
> >
> >
> >
> >
> >
> > Sponsored by the Collins Collectors Association
> http://www.collinsradio.org
> > Nets: Tues: 3.805 Mc-2000 Central / Thur: 3.875 Mc-2000 Central
> > Fri: 3.895 Mc-2000 Pacific / Sun: 14.263 Mc-2000 UTC
> > 1st Wed (of the month) AM Net 3.880 Mc-2000 local (ET, CT, MT, PT)
> > Sun AM Net: 29.050 Mc-1200 Central
> >
>
>
> Also try 1-800-685-6386 - Telex/EV Parst - ask for Sue - great help - sent
> me a switch at no charge.
>
> 73,
>
> Bill Riches, WA2DVU
> Cape May, NJ
>
> Sponsored by the Collins Collectors Association http://www.collinsradio.org
> Nets: Tues: 3.805 Mc-2000 Central / Thur: 3.875 Mc-2000 Central
> Fri: 3.895 Mc-2000 Pacific / Sun: 14.263 Mc-2000 UTC
> 1st Wed (of the month) AM Net 3.880 Mc-2000 local (ET, CT, MT, PT)
> Sun AM Net: 29.050 Mc-1200 Central
>