[Boatanchors] Boatanchors Digest, Vol 97, Issue 24

Sat Feb 18 09:05:08 EST 2012

On 2/17/2012 11:41 PM, boatanchors-request at mailman.qth.net wrote:
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> Today's Topics:
>
>     1. Plexiglass and the 1935 Station Project. (David Stinson)
>     2. Re: Plexiglass and the 1935 Station Project. (Jim Haynes)
>     3. Re: Plexiglass and the 1935 Station Project. (David Stinson)
>     4. Re: Plexiglass and the 1935 Station Project. (mac)
>     5. Re: Plexiglass and the 1935 Station Project. (Jim Wilhite)
>     6. Re: Plexiglass and the 1935 Station Project. (Rob Atkinson)
>     7. FS: Tubes $1 to $20 (Bry Carling)
>     8. Re: [BoatAnchors] Plexiglass and the 1935 Station	Project.
>        (Robert Nickels)
>     9. Re: New MF Amateur Band Approved at WRC- 472 to 479kHz (Drew P.)
>    10. Re: New MF Amateur Band Approved at WRC- 472 to 479kHz
>        (Bry Carling)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 17 Feb 2012 11:24:05 -0600
> From: "David Stinson"<arc5 at ix.netcom.com>
> Subject: [Boatanchors] Plexiglass and the 1935 Station Project.
> To:<boatanchors at mailman.qth.net>,<boatanchors at theporch.com>,
> 	<milsurplus at mailman.qth.net>
> Message-ID:<F6B61FBEA97D47F2ACE60A10719B7DC9 at DaddyPC>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> 	reply-type=response
>
> First- let me thank everyone for the great suggestions on
> working Plexiglass or Lexan.  These lists are the best!
>
> Several have asked me for more details on this,
> and why the Plexiglass.
>
> I'm building a 1935-era station and want it to represent
> what a young, new ham would actually have used to
> make his first QSOs.  The old magazines and
> boatanchor sites are full of big, multi-transformer,
> multi-chassis, then-state-of-the-art transmitters.
> Well, in 1935, only guys who were rich could
> build such a transmitter.  Average young boys who were
> in love with the magic of radio had no access to big money.
> If they were going to have a transmitter at all, they'd have to
> build it from scavenged parts and pieces given them
> by older hams.  They'd have one transmitting tube if
> they were lucky;  they usually had to make-do with
> receiver tubes.  They'd build it on a wooden board,
> not an expensive metal box.  And lots of youngsters
> worked the world with those simple transmitters.
>
> There are lots of those"rich man" transmitters still around
> and they're beautiful machines, but I wanted to build
> a typical "po-boy" rig to go with my new HRO and
> see how it would do.  While I've got it on the air now and
> have worked several states, I've still got lots of "finishing"
> work to do.  I want to use Plexiglass as the top 2/3rds
> of the rack-mount front panel so I can enjoy the bright
> glow of that big 1930s bottle.  Here are drawings of
> the transmitter and station build concept:
>
> http://home.netcom.com/~arc5/HRO/1935stncpt.jpg
> http://home.netcom.com/~arc5/HRO/1935txcncpt.jpg
>
> The red thing under the receiver is a small op desk,
> which will hold the key and a small crystal rack,
> in which I want to put the CM-2 and BC-2
> crystal holders.  The TX supply will be in
> the rack under the table.
> The Plexiglass sheet has a window on the left;
> you can reach-in and change the crystal in
> *relative* safety.  You'd have to twist your hand
> around and try hard to reach any B+
> from the window.
>
> Lunch is over... Back to work!
>
> 73 DE Dave AB5S
>
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 17 Feb 2012 11:44:33 -0600 (CST)
> From: Jim Haynes<jhhaynes at earthlink.net>
> Subject: Re: [Boatanchors] Plexiglass and the 1935 Station Project.
> To: David Stinson<arc5 at ix.netcom.com>
> Cc: boatanchors at mailman.qth.net, boatanchors at theporch.com,
> 	milsurplus at mailman.qth.net
> Message-ID:<alpine.LFD.2.02.1202171142080.2278 at Frances.localdomain>
> Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII
>
> It may not be wise to mount meters on Plexiglass if they are going to
> be carrying high voltage.  There would be a chance of high voltage
> getting to the outside via something like the zero set screw, or just
> breaking down the insulation of the meter case.  It might be safer to
> ground the mounting bolts of the meters and have the entire meter behind
> the Plexiglass.
>
> Of course the "po boy" of 1935 would not have had Plexiglass - he would
> have had to make do with window glass.  And most likely would have used
> Masonite for the panels.
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Fri, 17 Feb 2012 11:52:46 -0600
> From: "David Stinson"<arc5 at ix.netcom.com>
> Subject: Re: [Boatanchors] Plexiglass and the 1935 Station Project.
> To:<milsurplus at mailman.qth.net>,<boatanchors at theporch.com>,
> 	<boatanchors at mailman.qth.net>
> Message-ID:<1287DE2F2E2F4B97A7C042B3B5C21705 at DaddyPC>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> 	reply-type=response
>
>
> ----- Original Message -----
> From: "Jim Haynes"<jhhaynes at earthlink.net>
>
>
>> It may not be wise to mount meters on Plexiglass if they are going
>> to
>> be carrying high voltage.
> Very wise of you to point out, Jim, and good advice for
> anyone building a similar rig.
> The B+ meter in this rig will be shunted and only carry
> a small voltage, with a zener hidden behind to "safe"
> it to ground should the shunt open or the coil short to case.
>
>> Of course the "po boy" of 1935 would not have had Plexiglass - he
>> would
>> have had to make do with window glass.  And most likely would have
>> used
>> Masonite for the panels.
> Very true.  But I just gotta be able to see that glow. ;-)
>
>
>
> ------------------------------
>
> Message: 4
> Date: Fri, 17 Feb 2012 10:50:35 -0800
> From: mac<w7qho at aol.com>
> Subject: Re: [Boatanchors] Plexiglass and the 1935 Station Project.
> To: "David Stinson"<arc5 at ix.netcom.com>
> Cc: boatanchors at mailman.qth.net, boatanchors at theporch.com,
> 	milsurplus at mailman.qth.net
> Message-ID:<D9F8D9A4-1039-488C-A822-B1B6579CEC0F at aol.com>
> Content-Type: text/plain;	charset=US-ASCII;	format=flowed;	delsp=yes
>
> In which case you might consider building up a one or two tube regen
> to pair with the xmtr as opposed to that (very nice) HRO.
>
> Dennis D.  W7QHO
> Glendale, CA
>
> ******************
> On Feb 17, 2012, at 9:24 AM, David Stinson wrote (in part):
>
>> I'm building a 1935-era station and want it to represent
>> what a young, new ham would actually have used to
>> make his first QSOs.
>
>
> ------------------------------
>
> Message: 5
> Date: Fri, 17 Feb 2012 13:02:37 -0600
> From: "Jim Wilhite"<w5jo at brightok.net>
> Subject: Re: [Boatanchors] Plexiglass and the 1935 Station Project.
> To: "Boatanchors Mail List"<boatanchors at mailman.qth.net>
> Message-ID:<B9B0185D231246EBBAAD92D9C0840003 at JimPC>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> 	reply-type=original
>
> There is a museum in Deming, NM that has a 30s era transmitter on
> display.  The rig is much larger than you are making Dave but uses the
> type of construction you are striving to accomplish.  The thing looks
> like a piece of furniture with glass sides.  It is a thing of beauty.
>
> If some one here or on AM Radio lives in the area they could go take
> pictures and post them some where for everyone to see.  The item is on
> the second floor on the North side about 1/2 way toward the back.  This
> supposes the museum is still there and they still have it on display.
>
> It has been several years since I saw it but it would be nice to have
> those pictures.
>
> 73
>
> Jim/W5JO
>
>
> ----- Original Message -----
>
>> In which case you might consider building up a one or two tube regen
>> to pair with the xmtr as opposed to that (very nice) HRO.
>>
>> Dennis D.  W7QHO
>> Glendale, CA
>>
>> ******************
>> On Feb 17, 2012, at 9:24 AM, David Stinson wrote (in part):
>>
>>> I'm building a 1935-era station and want it to represent
>>> what a young, new ham would actually have used to
>>> make his first QSOs.
>
>
> ------------------------------
>
> Message: 6
> Date: Fri, 17 Feb 2012 16:03:39 -0600
> From: Rob Atkinson<ranchorobbo at gmail.com>
> Subject: Re: [Boatanchors] Plexiglass and the 1935 Station Project.
> To: Jim Wilhite<w5jo at brightok.net>
> Cc: Boatanchors Mail List<boatanchors at mailman.qth.net>
> Message-ID:
> 	<CALWD7Z59yQTV90PFRZGpbzjagMk59p_SXqoH_Ncr8VeWNE1b0w at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> That's exactly what Mike W5EGO's new website could be used for.  He
> set it up for boatanchor photo sharing.  Hamfest photos etc.
>
>
> It's at http://hamstuff.ath.cx.
>
> Rob
> K5UJ
>
> On Fri, Feb 17, 2012 at 1:02 PM, Jim Wilhite<w5jo at brightok.net>  wrote:
>> There is a museum in Deming, NM that has a 30s era transmitter on
>> display. ?The rig is much larger than you are making Dave but uses the
>> type of construction you are striving to accomplish. ?The thing looks
>> like a piece of furniture with glass sides. ?It is a thing of beauty.
>>
>> If some one here or on AM Radio lives in the area they could go take
>> pictures and post them some where for everyone to see. ?The item is on
>> the second floor on the North side about 1/2 way toward the back. ?This
>> supposes the museum is still there and they still have it on display.
>>
>> It has been several years since I saw it but it would be nice to have
>> those pictures.
>>
>> 73
>>
>> Jim/W5JO
>>
>>
>> ----- Original Message -----
>>
>>> In which case you might consider building up a one or two tube regen
>>> to pair with the xmtr as opposed to that (very nice) HRO.
>>>
>>> Dennis D. ?W7QHO
>>> Glendale, CA
>>>
>>> ******************
>>> On Feb 17, 2012, at 9:24 AM, David Stinson wrote (in part):
>>>
>>>> I'm building a 1935-era station and want it to represent
>>>> what a young, new ham would actually have used to
>>>> make his first QSOs.
>> ______________________________________________________________
>> Boatanchors mailing list
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>> Help: http://mailman.qth.net/mmfaq.htm
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>>
>> List Administrator: Duane Fischer, W8DBF
>> ** For Assistance: dfischer at usol.com **
>>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>
> ------------------------------
>
> Message: 7
> Date: Fri, 17 Feb 2012 22:43:00 -0500
> From: "Bry Carling"<bcarling at cfl.rr.com>
> Subject: [Boatanchors] FS: Tubes $1 to $20
> To: AmRadGear at yahoogroups.com, armyradios at yahoogroups.com,
> 	boatanchors at puck.nether.net, boatanchors at mailman.qth.net
> Message-ID:<4F3F1E44.17648.1A7E34 at bcarling.cfl.rr.com>
> Content-Type: text/plain; charset=US-ASCII
>
> FOR SALE: TUBES
>
> QTY 2 - TUNGSOL 5881/6L6WGB - Pair for $40.00
> (These are JAN-CTL, USA made)
>
> QTY 1 - Tungsol 6SL7 - $8.00
>
> QTY 1 G.E. 5R4GB - $5.00
>
> QTY 1 - TRONYX 5U4G - $4.00
>
> QTY 1 - Phillips QQE06-40 - $6.00
>
> QTY 1 - Western Electric 14A Ballst Tube - $3.00
>
> QTY 1 - Type 837 transmitting tube - $6.00
>
> QTY 1 - 40KD6 marked as Silvertone - $5.00
>
> QTY 1 - NEW Sylvania 40KD6 in Box - $9.00
>
> QTY 2 - New G.E. 2E26 - Pair for $8.00
>
> QTY 1 - G.E. 6AK5 tube - NIB - $1.00
>
> QTY 1 - G.E. 6EV5 tube - NIB - $1.00
>
> QTY 1 - G.E. 8156 Compactron - NIB - $2.00
>
> QTY 1 - G.E. 6661 / 6BH6 tube - NIB - $5.00
>
> QTY 1 - G.E. 6663 / 6AL5W tube - NIB - $2.00
>
> QTY 1 - G.E. 6681 / 12AX7WA tube - NIB - $25.00
>
> QTY 1 - G.E. 6999 / 6AK6 tube - NIB - $2.00
>
> QTY 1 - G.E. 7984 tube - NIB - $6.00
>
> Some of these look new but everything above the new SYlvania 40KD6 will be sold
> as "good used" to be sure.
>
> Shipping additional.
>
> I will have more soon. Thanks for looking - 73 de AF4K, Bry
>
>
>
>
>
> ------------------------------
>
> Message: 8
> Date: Fri, 17 Feb 2012 21:48:45 -0600
> From: Robert Nickels<ranickel at comcast.net>
> Subject: Re: [Boatanchors] [BoatAnchors] Plexiglass and the 1935
> 	Station	Project.
> To: boatanchors at theporch.com, Niel Wiegand
> 	<nielwiegand at aggienetwork.com>, 	boatanchor network
> 	<boatanchors at mailman.qth.net>
> Message-ID:<4F3F1F9D.9030707 at comcast.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 2/17/2012 8:12 PM, Niel Wiegand wrote:
>> I modeled my 1938 transmitter after a rack mounted Gross CW-25
> Congrats on an excellent project,  Niel!   I was thinking of replying to
> Dave about my notion that the Gross style of construction ought to be
> pretty easy to copy, and here you've proven the point very nicely.
> Not only does it give the 30s vintage look, but it should be fairly easy
> to do using angle stock, and could be adjusted to accommodate available
> chassis sizes.    Probably not a great choice for those with small
> children, curious pets, or who have trouble staying clear of HV and RF!
>
> The dial escutcheons and Bliley crystal really add the finishing
> touch.    Now, where do we sign up for your black wrinkle painting
> workshops?
>
> 73, Bob W9RAN
>
>
> ------------------------------
>
> Message: 9
> Date: Fri, 17 Feb 2012 20:24:44 -0800 (PST)
> From: "Drew P."<drewrailleur807 at yahoo.com>
> Subject: Re: [Boatanchors] New MF Amateur Band Approved at WRC- 472 to
> 	479kHz
> To: boatanchors at mailman.qth.net
> Message-ID:
> 	<1329539084.36724.YahooMailClassic at web38506.mail.mud.yahoo.com>
> Content-Type: text/plain; charset=us-ascii
>
> David Stinson wrote:
>
> "Believe me- if you have a reasonably
> RF-quiet location (or good noise nulling),
> an effective antenna (which doesn't have to be gigantic)
> and, most important: accurate frequency calibration
> on both ends, you can QSO with normal CW
> and certainly with the digital modes across the continent
> and across The Pond. "
>
> Therein lies the rub - "a reasonably RF-quiet location". Many of us, particularly the economically-challenged, have absolutely no hope of securing reception with anything less than an S9 noise level.  QRSS, mundane though it be as compared to "real" modes, offers to those of us the only alternative.
>
> Drew
>
>
> ------------------------------
>
> Message: 10
> Date: Fri, 17 Feb 2012 23:41:26 -0500
> From: "Bry Carling"<bcarling at cfl.rr.com>
> Subject: Re: [Boatanchors] New MF Amateur Band Approved at WRC- 472 to
> 	479kHz
> To: boatanchors at mailman.qth.net
> Message-ID:<4F3F2BF6.5976.4FFE8B at bcarling.cfl.rr.com>
> Content-Type: text/plain; charset=US-ASCII
>
> Oh really? Daytime conditions on the 500-550 kHz range seem VERY good here in Florida
> with signals traveling WELL beyond the horizon.
>
> On 17 Feb 2012 at 20:24, Drew P. wrote:
>
>> David Stinson wrote:
>>
>> "Believe me- if you have a reasonably
>> RF-quiet location (or good noise nulling),
>> an effective antenna (which doesn't have to be gigantic)
>> and, most important: accurate frequency calibration
>> on both ends, you can QSO with normal CW
>> and certainly with the digital modes across the continent
>> and across The Pond. "
>>
>> Therein lies the rub - "a reasonably RF-quiet location". Many of us,
>> particularly the economically-challenged, have absolutely no hope of
>> securing reception with anything less than an S9 noise level.  QRSS,
>> mundane though it be as compared to "real" modes, offers to those of
>> us the only alternative.
>>
>> Drew
>> ______________________________________________________________
>> Boatanchors mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/boatanchors
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Boatanchors at mailman.qth.net
>>
>> List Administrator: Duane Fischer, W8DBF
>> ** For Assistance: dfischer at usol.com **
>>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list:
>> http://www.qsl.net/donate.html
>
>
>
> ------------------------------
>
> ______________________________________________________________
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>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
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> End of Boatanchors Digest, Vol 97, Issue 24
> *******************************************
I think window screen on the front would be best for period and budget 
accuracy. It could be copper plated and maybe offer some RF shielding.