Anytone AT-6666 Replacement Electret Microphone

[TheRealPorkchop]

3 5 7 NC, your transmission smells kinda funny, what you keying down on?

Haha!! Sockrophone, I kill me sometimes!!

 

[sunbulls]

The best replacement microphone cartridge I have found is the WESTERN ELECTRIC Model EL2 Electret/FET. it was used as the mic element in the 4A and 6A speakerphones. Designed by Bell Labs and built by WECo. Film electret cartridge followed by a FET preamp. High output and crystal clear audio. 600 ohm output impedance. 5-15 VDC power. Two 5 volt hearing aid batteries will run it practically forever.

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A friend who worked at Western "liberated" a few dozen for me. Good units that failed the Bell System EQ curve test. Scheduled to be trashed. I use one on any CB that requires a power mike. I have seen them listed on the surplus market for about 10 bucks each.

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- 399

Thanks for the tip on the EL2 Electret elements. I’m going to try one of those out in the future. After unsuccessfully finding the circuit boards I removed out of several of those 4A speakers, a little research afterwards indicated the element was contained inside the rocker switch or so called “transmitter” part anyway. I assumed it was inside the speaker box along with all the other circuitry. In the past I converted a few of those boxes into ordinary external radio speakers, but tossed the circuit boards aside in the process. The following illustration and Ebay link shows what the 680A Transmitter part looks like. Consider it as another possible part source.

http://www.ebay.com/itm/Vintage-Western-Electric-4A-Speaker-Phone-680AE-Transmitter/254311171021

If you like a little history about the EL2 click on this link. I especially like the photo of the lab with developers.
https://www.academia.edu/7534793/VO...ret_Meets_the_Micro-Electro-Mechanical-System

 

[357magnum]

Ralph , You need to change your Sock once in a while !

 

[S&W357]

You think!

That picture of the Anytone mic...I actually did take an old mic apart and put that Midland bezel and interior wind screen on the face of the AT-6666 mic. Temporarily with glue dots.

It's in the trial mode to see if the pfffs are gone. Folks say it sounds fine.

But then at one time or another I'm told both the stock mic with/without sock and DNC520 mic with/without sock sound fine.

 

[357magnum]

I hope we get this mic thing figured out ! Years to come as happens on here frequently someone will drag this thread out of the Archives & say " What are these idiots talking about " ! Myself I've been involved w/ Sock gate way to long ! For everyone's information .... " I had No Sexual Relations with That Sock " ! Two different WH things but you all get the Gist ! God I hope The Capt shuts this thread down soon ! Just Kidding ! 73 & God Bless to All , Leo

 

[S&W357]

Yeh I'm through with it also. After this post no more talking from me about mics for that AT radio. I've been all through the sock drawer testing and evaluating for the best sock to provide clear unmuffled deep resonate modulation.

Now that I've found that, I'm through. The information can only be acquired from me for a price. The drawer is closed.

 

[357magnum]

Ralph , I'm just kidding , Still a few more " Threads " in that Sock ! Wow I found another one !

 

[357magnum]

Btw , Took me a few seconds but I got the " Drawer " thing ! Who's better than you ? Now it might be a contest , how can we keep this Sock thread going ? Myself ... I think I'm out !

 

[357magnum]

Maybe the longest thread about socks on a radio forum ever ! Maybe we should contact Guinness that world record place !

 

[Capt Crunch]

Ok, so recap if you will, what works and what doesn’t?

And let’s say you ran this in a semi, you’d need a noise canceling mic so what do you think the choice should be?

Palomar SL-41 available in the UK for about $100 shipped from Avera distributing.

 

[TheRealPorkchop]

Yeah I ordered two awhile back, pricy. It’s alright, not my favorite mic but then again I don’t think I have a favorite.

 

[357magnum]

You mean it works better than Ralph's Sock ? Say it ain't so !

 

[S&W357]

Christmas sock will be in place in a few months.

Just had 10 minute QSO with Larry in Wisconsin on 27.415. He said audio sounded great. Mic on my end was the AT factory mic with the old Midland windscreen on front and...you know it, a thin black sock over that. Sounds weird but it seems to work.

That's My Mic & I'm Sticking To It

 

[codeman]

I have the Lincoln2 and always hated that pffft sound from the stock microphone. I had to try the sock trick. It worked. Hahaha. I dont think I will use it mobile, that would get some strange looks my way for sure. As of now i run a rf limited 2018 with the 6 pin adapter.

 

[S&W357]

glad it worked for you