[NJARC] NJARC Digest, Vol 110, Issue 5

[Walt Heskes]

The 27k resistor works much the same as a 500 ohm 20 watt resistor works in place of a loudspeaker field coil in a power supply circuit. Instead of an L-C filter you are creating an R-C filter. Determine the optimum resistance value by calculating the equivalent time constant. Or, use good old trial and error. 
Walt de w2mq

iMail from Walt's iPhone

On Jun 7, 2013, at 12:00 PM, njarc-request at mailman.qth.net wrote:

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> _______________________________________________
> Today's Topics:
> 
>   1. In Search of:  Western Electric touch tone wall phone
>      (Wayne Zakaras)
>   2. Re: In Search of:  Western Electric touch tone wall phone
>      (oldradio at comcast.net)
>   3. IF with 27k? (sgt88 at atlanticbb.net)
>   4. Re: IF with 27k? (Al Klase)
> hi all
> i am looking to acquire an "older"   WORKING western electric touch tone wall phone   I am looking for one that has the modular connection to the wall plate.  Color is indifferent.  I am looking for the type  that has the buttons onhte base, not the handset. some types are 2554 ...
> 
> if anyone has one of these (and looking to rid themselves of it, please email me at wcz at exit109.com.
> BTW.   I'm not looking to drop a significant amount of cash on this.  It is for a clubhouse phone in Silverton that wa shit badly by Sandy.  A donation would be wonderful!
> 
> 
> 
> 
> Wayne,
> 
> Try Ebay.
> 
> 73, John Dilks, K2TQN
> 
> 
> -.-
> 
> ----- Original Message -----
> From: "Wayne Zakaras" <wcz at exit109.com>
> To: njarc at mailman.qth.net
> Sent: Thursday, June 6, 2013 12:44:26 PM
> Subject: [NJARC] In Search of:  Western Electric touch tone wall phone
> 
> Just remember
> Reply = Poster
> Reply All = Everyone
> 
> _________________________________________________________
> hi all
> i am looking to acquire an "older"   WORKING western electric touch tone 
> wall phone   I am looking for one that has the modular connection to the 
> wall plate.  Color is indifferent.  I am looking for the type  that has 
> the buttons onhte base, not the handset. some types are 2554 ...
> 
> if anyone has one of these (and looking to rid themselves of it, please 
> email me at wcz at exit109.com.
> BTW.   I'm not looking to drop a significant amount of cash on this.  It 
> is for a clubhouse phone in Silverton that wa shit badly by Sandy.  A 
> donation would be wonderful!
> 
> 
> 
> ______________________________________________________________
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> 
> THAT is certainly 'out of the box!'...quite creative, I would add.
> 
> Just gotta ask: why/how does this work??
> 
> What wattage resistor...I suspect the IF coil wire diameter was tooooooo small for the plate current...otherwise...why would allllllll the same IF's open???
> 
> Next rookie question: resistor across the trimmer cap?
> 
> Called a Litz wire company...got quote on 7 strand @ 44 AWG...16,000 feet per pound...minimum order 2 pounds @ $280 per pound.
> 
> Wonder if the club should 'stock' it for members wishing to wind their own?..and buy only the feet they need.
> 
> 
> On 6/6/2013 1:17 PM, sgt88 at atlanticbb.net wrote:
> 
> ...Just gotta ask: why/how does this work??..
> 
> Probably not very well, especially in this case.
> 
> Steve:  Please refresh my memory on which radio this is.  (I'll post my rant on 21st Century E-mail etiquette elsewhere. :-) )
> 
> Respond to the guy that was offering an IF can with a center-tapped secondary.  GRAB IT!
> 
> Trying to rewind the coil is a fools errand.  Grafting in a coil from an other transformer is a lot more manageable, but still a chore.
> 
> If it's AFC in an AM receiver, you may never miss it.
> 
> Al
> 
>> Just remember
>> Reply = Poster
>> Reply All = Everyone
>> 
>> _________________________________________________________
>> THAT is certainly 'out of the box!'...quite creative, I would add.
>> 
>> Just gotta ask: why/how does this work??
>> 
>> What wattage resistor...I suspect the IF coil wire diameter was tooooooo small for the plate current...otherwise...why would allllllll the same IF's open???
>> 
>> Next rookie question: resistor across the trimmer cap?
>> 
>> Called a Litz wire company...got quote on 7 strand @ 44 AWG...16,000 feet per pound...minimum order 2 pounds @ $280 per pound.
>> 
>> Wonder if the club should 'stock' it for members wishing to wind their own?..and buy only the feet they need.
>> ______________________________________________________________
>> 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
> 
> -- 
> Al Klase - N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
> 
> 
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