[AMRadio] Hallicrafters R-12 speaker


Jim Tonne tonne at comcast.net
Sat Sep 5 12:32:32 EDT 2009




> Some of these SW Stations
> are going out to 12 and 15 K

International regulations generally call for a sharp
cutoff at 4500 Hz, down 35 dB at 5000 with a
35 dB minimum after that.   In some areas 6000
Hz was used.

If "some" do the 12k or 15k thing, please tell us
the call letters and frequency.

- Jim W4ENE



----- Original Message ----- 
From: "Bob Peters" <rwpeters at swbell.net>
To: "'Discussion of AM Radio in the Amateur Service'" 
<amradio at mailman.qth.net>
Sent: Saturday, September 05, 2009 12:09 PM
Subject: Re: [AMRadio] Hallicrafters R-12 speaker


> That is great John but look at the freq response
> of that speaker...Great low end but only goes to 4
> K on the high side... Some of these SW Stations
> are going out to 12 and 15 K...Great for AM
> Amateur Voice use..Check out this 8 inch at
> http://www.penton-usa.com/finalpdf/LCS8XT72.pdf
> ... It goes out to 16K and cost is $18.
> Wholesale...Pro Net is $32...Take off the grill
> and transformer...The tranny is great as a 500 ohm
> to 8 ohm conversion. Throw the grill away  LOL...
> Like I said to Brian use a pair of these and they
> will rock from a push pull amp or even a single
> ended amp...
>
> Bob W1PE
>
> -----Original Message-----
> From: amradio-bounces at mailman.qth.net
> [mailto:amradio-bounces at mailman.qth.net] On Behalf
> Of John Coleman
> Sent: Saturday, September 05, 2009 10:17 AM
> To: Discussion of AM Radio in the Amateur Service
> Subject: Re: [AMRadio] Hallicrafters R-12 speaker
>
> I agree Bob.  Maybe Brian intends to put a pair of
> 805 between the receiver and the speaker and play
> some guitar.  At any rate I'm sure he has his
> reasons.
>
> I might go with this one
> (http://www.parts-express.com/pe/showdetl.cfm?Part
> number=290-486), and even it is an over kill but
> selection of 12 inch  speakers with less than a 20
> watt rating are few and far between.  Many times I
> will cut a board to fit where the speaker goes and
> then mount a smaller speaker to the board.  In
> most cases the smaller speaker has better sound
> due to modern manufacturing and tech specs than
> the older one.
> http://www.parts-express.com/pe/showdetl.cfm?Partn
> umber=290-486
>
> 73, John
>
> -----Original Message-----
> From: amradio-bounces at mailman.qth.net
> [mailto:amradio-bounces at mailman.qth.net] On Behalf
> Of Bob Peters
> Sent: Friday, September 04, 2009 6:02 PM
> To: 'Discussion of AM Radio in the Amateur
> Service'
> Subject: Re: [AMRadio] Hallicrafters R-12 speaker
>
> WOW That is way overkill for Ham Radio  ...Bob
>
> -----Original Message-----
> From: amradio-bounces at mailman.qth.net
> [mailto:amradio-bounces at mailman.qth.net] On Behalf
> Of WA5AM
> Sent: Friday, September 04, 2009 5:45 PM
> To: Discussion of AM Radio in the Amateur Service
> Subject: Re: [AMRadio] Hallicrafters R-12 speaker
>
> This one here:
> http://www.parts-express.com/pe/pshowdetl.cfm?&DID
> =7&Partnumber=290-834&ctab=2#Tabs
>
> 73
> Brian
>
>
>
> On 9/4/09, John Coleman <jc at pctechref.com> wrote:
>>
>> I'm curious Brian, what is the one that you
> intend to get?
>> John, WA5BXO
>>
>> -----Original Message-----
>> From: amradio-bounces at mailman.qth.net [mailto:
>> amradio-bounces at mailman.qth.net] On Behalf Of
> WA5AM
>> Sent: Friday, September 04, 2009 4:42 PM
>> To: Discussion of AM Radio in the Amateur
> Service
>> Subject: Re: [AMRadio] Hallicrafters R-12
> speaker
>>
>> Thanks John.  They appear to have one that will
> work very well, and the
>> price on their speakers is darn good!
>>
>> 73
>> Brian
>>
>>
>>
>> On 9/4/09, John Coleman <jc at pctechref.com>
> wrote:
>> >
>> > Brian
>> >        I buy most speakers from Parts Express.
> They have a lot of audio
>> > parts and equipment.
> (http://www.parts-express.com)
>> > Good Luck
>> > John, WA5BXO
>> >
>> >
> __________________________________________________
> ____________
>> > Our Main Website: http://www.amfone.net
>> > AMRadio mailing list
>> > Searchable Archives:
>>
> http://www.mail-archive.com/amradio@mailman.qth.ne
> t/
>> > List Rules (must read!):
> http://w5ami.net/amradiofaq.html
>> > List Home:
> http://mailman.qth.net/mailman/listinfo/amradio
>> > Post: AMRadio at mailman.qth.net
>> > To unsubscribe, send an email to
> amradio-request at mailman.qth.net with
>> > the word unsubscribe in the message body.
>> >
>> > This list hosted by: http://www.qsl.net
>> > Please help support this email list:
> http://www.qsl.net/donate.html
>> >
>>
>>
>>
>> --
>> Brian Sherrod, PA
>> My website: http://w5ami.net
>> Arkansas Amateur Community Forums -
> http://w5ami.net/forums
>> wa5am at arrl.net
>>
> __________________________________________________
> ____________
>> Our Main Website: http://www.amfone.net
>> AMRadio mailing list
>> Searchable Archives:
> http://www.mail-archive.com/amradio@mailman.qth.ne
> t/
>> List Rules (must read!):
> http://w5ami.net/amradiofaq.html
>> List Home:
> http://mailman.qth.net/mailman/listinfo/amradio
>> Post: AMRadio at mailman.qth.net
>> To unsubscribe, send an email to
> amradio-request at mailman.qth.net with
>> the word unsubscribe in the message body.
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list:
> http://www.qsl.net/donate.html
>>
> __________________________________________________
> ____________
>> Our Main Website: http://www.amfone.net
>> AMRadio mailing list
>> Searchable Archives:
> http://www.mail-archive.com/amradio@mailman.qth.ne
> t/
>> List Rules (must read!):
> http://w5ami.net/amradiofaq.html
>> List Home:
> http://mailman.qth.net/mailman/listinfo/amradio
>> Post: AMRadio at mailman.qth.net
>> To unsubscribe, send an email to
> amradio-request at mailman.qth.net with
>> the word unsubscribe in the message body.
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list:
> http://www.qsl.net/donate.html
>>
>
>
>
> -- 
> Brian Sherrod, PA
> My website: http://w5ami.net
> Arkansas Amateur Community Forums -
> http://w5ami.net/forums
> wa5am at arrl.net
> __________________________________________________
> ____________
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Searchable Archives:
> http://www.mail-archive.com/amradio@mailman.qth.ne
> t/
> List Rules (must read!):
> http://w5ami.net/amradiofaq.html
> List Home:
> http://mailman.qth.net/mailman/listinfo/amradio
> Post: AMRadio at mailman.qth.net
> To unsubscribe, send an email to
> amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.
>
> This list hosted by: http://www.qsl.net
> Please help support this email list:
> http://www.qsl.net/donate.html
>
> __________________________________________________
> ____________
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Searchable Archives:
> http://www.mail-archive.com/amradio@mailman.qth.ne
> t/
> List Rules (must read!):
> http://w5ami.net/amradiofaq.html
> List Home:
> http://mailman.qth.net/mailman/listinfo/amradio
> Post: AMRadio at mailman.qth.net
> To unsubscribe, send an email to
> amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.
>
> This list hosted by: http://www.qsl.net
> Please help support this email list:
> http://www.qsl.net/donate.html
> __________________________________________________
> ____________
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Searchable Archives:
> http://www.mail-archive.com/amradio@mailman.qth.ne
> t/
> List Rules (must read!):
> http://w5ami.net/amradiofaq.html
> List Home:
> http://mailman.qth.net/mailman/listinfo/amradio
> Post: AMRadio at mailman.qth.net
> To unsubscribe, send an email to
> amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.
>
> This list hosted by: http://www.qsl.net
> Please help support this email list:
> http://www.qsl.net/donate.html
>
> ______________________________________________________________
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Searchable Archives: 
> http://www.mail-archive.com/amradio@mailman.qth.net/
> List Rules (must read!): http://w5ami.net/amradiofaq.html
> List Home: http://mailman.qth.net/mailman/listinfo/amradio
> Post: AMRadio at mailman.qth.net
> To unsubscribe, send an email to 
> amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: 
> http://www.qsl.net/donate.html 



More information about the AMRadio mailing list

This page last updated 22 Oct 2017.