[Hallicrafters] (no subject)

[W8DBF D.B. Fischer]

If you think no tubes is bad William, what about using 'valves' in a radio? 
The two groups were intake valves for the RX and exhaust valves for the TX. 
Oddly enough though, it was not used for an automotive radio.

Duane Fischer, W8DBF
dfischer at usol.com
HHRP: Historic Halligan Radio Project
Meet The Man BEFORE He Became A Legend!
Rare Audio & Video Available Now! See Photos - Get Details - Order Yours
http://homepage.mac.com/jthayer13/W9WZE/

----- Original Message ----- 
From: "Bill Gerhold" <k2wh at optonline.net>
To: "'Rob Copeland'" <rob at v6spider.com>; <Hallicrafters at mailman.qth.net>
Sent: Tuesday, May 23, 2006 8:37 PM
Subject: RE: [Hallicrafters] (no subject)


> NO TUBES?  Did he say "No tubes"?  Is that possible?  How could you 
> possibly
> have a signal generator with no tubes?  What would you use?  Must be some
> new fangled stuff I am not aware of. :')
>
> He said "Digital" and "New".  If I recall, Hallicrafters used that same 
> word
> when they made the HA-1 keyer.  Said it was 100% digital, says so right in
> this here brochure I have in my hand.  So, how could this digital thingy 
> be
> called "New"?
>
> Hi Hi
>
> K2WH
>
> -----Original Message-----
> From: hallicrafters-bounces at mailman.qth.net
> [mailto:hallicrafters-bounces at mailman.qth.net] On Behalf Of Rob Copeland
> Sent: Tuesday, May 23, 2006 6:50 PM
> To: Hallicrafters at mailman.qth.net
> Subject: RE: [Hallicrafters] (no subject)
>
> I guess I should clarify... I am talking new technology I.E. Digital ... 
> no
> tubes... but made specifically to work on older receivers with state of 
> the
> art features... weird yes, but why not that is the point. Build something
> that is totally custom designed with features specifically for our use 
> older
> stuff.
>
> Cheers!
>
> Rob
>
> -----Original Message-----
> From: Charlie [mailto:pincon at erols.com]
> Sent: Tuesday, May 23, 2006 2:36 PM
> To: Rob Copeland
> Subject: Re: [Hallicrafters] (no subject)
>
>
> Hi Rob.  Just what do you consider "pricey"?  I've seen plenty of HP 
> 8640's
> at around $400 and their military equivalents going for under $300.  I 
> doubt
> if you could build one for less with that kind of performance.  Of course,
> an old Heathkit with a good counter will do just about as well and would 
> be
> considerably cheaper.  I used a set-up like that for years until I 
> upgraded.
>
> 73' Charlie k3ICH
>
>
>
> ----- Original Message -----
> From: "Rob Copeland" <rob at v6spider.com>
> To: <Hallicrafters at mailman.qth.net>
> Sent: Tuesday, May 23, 2006 1:59 PM
> Subject: [Hallicrafters] (no subject)
>
>
>>
>> Hi All,
>>
>> I have scoured the Internet and noticed that modern signal generators are
>> extremely pricey. I have also noticed that most of them are not designed
>> specifically for shortwave use. So I am wondering if it would be 
>> benefical
>> start a open source project to build a modern RF signal generator that is
>> affordable and specifically designed for SW use. Anyway, I am thinking
>> this
>> processor:
>> http://www.analog.com/en/prod/0%2C2877%2CAD9854%2C00.html
>>
>> would be great for this purpose. Someone has designed a RF signal
>> generator
>> using this processor you can see their project here:
>> http://www.inthelight.co.nz/electronics/dds.htm
>>
>> It is fairly simple although I think it could be better. With a built in
>> Freq Counter, maybe a 100kc Freq. Sweep with variable speed.
>>
>> Thoughts...????
>>
>> Rob
>>
>>
>>
>> ______________________________________________________________
>> Hallicrafters mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/hallicrafters
>> Help: http://mailman.qth.net/mmfaq.html
>> Post: mailto:Hallicrafters at mailman.qth.net
>> ----
>> List Administrator: Duane Fischer, W8DBF **for assistance**
>> dfischer at usol.com
>> ----
>> Hallicrafters Collectors International: http://www.w9wze.org
>>
>
>
>
>
> ______________________________________________________________
> Hallicrafters mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hallicrafters
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:Hallicrafters at mailman.qth.net
> ----
> List Administrator: Duane Fischer, W8DBF **for assistance**
> dfischer at usol.com
> ----
> Hallicrafters Collectors International: http://www.w9wze.org
>
>
> ______________________________________________________________
> Hallicrafters mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hallicrafters
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:Hallicrafters at mailman.qth.net
> ----
> List Administrator: Duane Fischer, W8DBF **for assistance**
> dfischer at usol.com
> ----
> Hallicrafters Collectors International: http://www.w9wze.org
>
>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.392 / Virus Database: 268.6.1/344 - Release Date: 5/19/2006
>
>