[ARC5] ARC5 Digest, Vol 105, Issue 112
Darryl Sage
trifid284 at gmail.com
Sun Oct 21 01:31:02 EDT 2012
Hi Dave I think the world of you really You have helped me out several
timer with out knowing it tnx 73 all Darryl ve3cpo
On Sat, Oct 20, 2012 at 11:49 AM, <arc5-request at mailman.qth.net> wrote:
> Send ARC5 mailing list submissions to
> arc5 at mailman.qth.net
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://mailman.qth.net/mailman/listinfo/arc5
> or, via email, send a message with subject or body 'help' to
> arc5-request at mailman.qth.net
>
> You can reach the person managing the list at
> arc5-owner at mailman.qth.net
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of ARC5 digest..."
>
>
> Today's Topics:
>
> 1. Re: Added 6F6 audio stage. (Ronnie Hull)
> 2. For Trade: ARC-5 Rack (David Stinson)
> 3. Re: Added 6F6 audio stage. (Bill Cromwell)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 20 Oct 2012 10:28:56 -0500
> From: "Ronnie Hull" <rolandhull at comcast.net>
> Subject: Re: [ARC5] Added 6F6 audio stage.
> To: "David Stinson" <arc5 at ix.netcom.com>, "ARC-5 List"
> <arc5 at mailman.qth.net>
> Message-ID: <93F0F3137D3E490489C4DAC989CDDBF1 at hppavilion>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> screw all the doofuses Dave, you know we love ya!
> ----- Original Message -----
> From: "David Stinson" <arc5 at ix.netcom.com>
> To: "ARC-5 List" <arc5 at mailman.qth.net>
> Sent: Saturday, October 20, 2012 6:18 AM
> Subject: Re: [ARC5] Added 6F6 audio stage.
>
>
> > OK... I confess.
> >
> > I think I *do* understand why people chain-sawed extra
> > audio stages into mil rigs, and I've already illustrated it,
> > but I will again because I'm a meany.
> >
> > 1. A cool and lovely fall morning in Chicago, 1961,
> > which is about to turn ugly.... very ugly.
> > Doofuss #1, with no understanding of the original circuit
> > nor any inclination to find out about it, hooks-up an 8-ohm
> > speaker to a 4000-ohm output.
> > *Surprise!* He gets low audio.
> >
> > 2. Doofuss #1: "Why it's just like my buddy Clem said-
> > them military engine-ears don't know nothin'! I'm a
> > Cornditional Class by God an' I know more than Marconi!"
> >
> > 3. Out comes the chainsaw-
> > "Waaa-wub-wub-wub-wrrrrrrrrrrrrrrrrrrrr...."
> >
> > 4. In goes some half-baked, upside-down "audio amplifier"
> > with 87% harmonic distortion and a junk-box output
> > transformer which, by the way, *still* doesn't match
> > the old speaker (including bonus moth holes)
> > taken from a junked Philco.
> >
> > 5. The poor, mangled radio, instead of delivering .5 watts
> > of nice, clean audio, now delivers
> > .75 watts of nasty, distorted audio. Such genius!
> > In fact, Doofuss #1 is so proud of his "craftsmanship,"
> > he writes an article for CQ magazine,
> > which publishes it to a waiting world.
> >
> > 6. Doofuss 2, 3, 4 etc. read the short article-
> > which is so much easier than reading boring old texts about
> > how the stage was supposed to work- and tell all their fellow
> > Doofussi about the "wonderful modification improvements,"
> > who parrot it forevermore, Amen.
> >
> > 7. For the next 5 generations
> > (or until the supply of doomed radios runs out),
> > where ever soldering irons are heated,
> > from sea to shining sea,
> > if one listens in the wee morning hours,
> > one can hear:
> > "Waaa-wub-wub-wub-wrrrrrrrrrrrrrrrrrrrr!"
> >
> > OK.... that's really what I think
> > is behind the audio "improvements."
> >
> > But I don't think I'll write about it.
> > Because Doofuss-1286 and Doofuss-1342
> > will get mad and call me nasty names.
> >
> > 73 DE Dave AB5S
> >
> >
> > ______________________________________________________________
> > ARC5 mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/arc5
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:ARC5 at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 20 Oct 2012 10:31:24 -0500
> From: "David Stinson" <arc5 at ix.netcom.com>
> Subject: [ARC5] For Trade: ARC-5 Rack
> To: <mrca at mailman.qth.net>, <milsurplus at mailman.qth.net>, "ARC-5
> List"
> <arc5 at mailman.qth.net>
> Message-ID: <41EC103E639F4DE1A4C973E776CD320B at CompaqSR5710F>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Trade one-for-one:
>
> Need: AN/ARC-5
> MT-7A Single Receiver Rack.
>
> Have: SCR-274N
> FT-232 Single Transmitter Shock Mount
> FT-233 Single Receiver Rack.
> FT-234 Single Transmitter Rack
>
> Other items available.
>
> TNX ES 73 DE Dave AB5S
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sat, 20 Oct 2012 11:49:27 -0400
> From: Bill Cromwell <wrcromwell at gmail.com>
> Subject: Re: [ARC5] Added 6F6 audio stage.
> To: arc5 at mailman.qth.net
> Message-ID: <1350748167.2893.14.camel at lancelot>
> Content-Type: text/plain; charset="UTF-8"
>
> Hi Roy,
>
> Yeah I know. I thought about that some more and I recall I did that with
> my RAK-7 (which also doesn't need any help) and it was to show some
> guests that it *can* be done.
>
> I am removing the radio and audio amp from an old entertainment set
> (monaural). That one has P-P 6L6s and lots of volume. It also has AM-FM
> receiver and two - count 'em - two extra inputs - one for record
> changer/turntable AND another one for a microphone. Perfect for the
> music room. Never mind the SS amplifier has all of that - twice.
>
> There is a pair of humungus speakers in there. All will be remounted in
> reworked wood from the chest high console. Meanwhile, when the power is
> out I will be using all SS gear just to conserve the house battery.
>
> As to extensive mods to the radios we talk about here - if I want
> something different and I have to make holes and mount parts and bend
> and tweak things I will make it from scratch and it will be a different
> radio right from the drawing board. I *LIKE* single band (even single
> mode) radios.
>
>
> On Fri, 2012-10-19 at 23:19 -0400, Roy Morgan wrote:
>
> > Bill
> >
> > Oh, bad. Find some tube type amplifier - most any will do. A single
> > triode connected 6L6 would be fine if you need to build one.
> >
> > I have a 1950's home made Williamson amp (push pull 807's in triode
> > mode, for about 10 watts max output) that I will use for my shack
> > amp. It will be satisfying to listen to the ham bands with 807's
> > through a contemporary UTC LS- series transformer!
> >
> > Roy
> >
> >
> >
> > Roy Morgan
> > k1lky at earthlink.net
> > K1LKY Since 1958 - Keep 'em Glowing!
>
>
>
>
> ------------------------------
>
> _______________________________________________
> ARC5 mailing list
> ARC5 at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/arc5
>
>
> End of ARC5 Digest, Vol 105, Issue 112
> **************************************
>
More information about the ARC5
mailing list