[R-390] R-390 Digest, Vol 95, Issue 25

Wed Mar 14 15:52:03 EDT 2012

If you add the R391 to the "80 pound watch"  equation it is even more amazing. I can tune in a SSB QSO on 3843, program the freq. in channel 2, go to channel 3 at 7415 and back --with the SSB signal coming right back on frequency. How cool is that for a 1951 radio!!

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To: r-390 at mailman.qth.net 
Sent: Wednesday, March 14, 2012 1:59 PM
Subject: R-390 Digest, Vol 95, Issue 25

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Today's Topics:

   1. Re: $5000.00 390A???? (Randy and Sherry Guttery)
   2. R-390A (digital readout) (Tisha Hayes)
   3. Re: R-390A (digital readout) (Randy and Sherry Guttery)
   4. Re: R-390A (digital readout) (chuck.rippel at cox.net)
   5. Re: R-390A (digital readout) (chuck.rippel at cox.net)
   6. Re: R-390A (digital readout) (Jim)
   7. Re: R-390A (digital readout) (Chris Kepus)
   8. Re: R-390A (digital readout) (Ben Loper)
   9. Re: R-390A (digital readout) (William A Kulze)
  10. Re: R-390a.net ? (Todd, KA1KAQ)

----------------------------------------------------------------------

Message: 1
Date: Wed, 14 Mar 2012 11:39:14 -0500
From: Randy and Sherry Guttery <comcents at bellsouth.net>
Subject: Re: [R-390] $5000.00 390A????
To: barry williams <ba.williams at charter.net>
Cc: r-390 at mailman.qth.net
Message-ID: <4F60C9B2.4070108 at bellsouth.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 3/14/2012 10:45 AM, barry williams wrote:
> Randy, I was in a Pershing IA unit for a few years. It was 
> a primitive nuke compared anything you probably came in 
> contact with.
I had no contact with the missiles themselves - there were 
(are) specialists that took care of them...  That said - 
actually Polaris and Pershing had quite a bit in common - 
both two stage solid propellant, blunt stupid (i.e. 
ballistic - once fired - they followed a ballistic 
trajectory making no other "corrections" - unlike today's 
smart weapons); and deadly. Polaris (and certainly it's 
progeny) had further throws and higher yields - but then 
they were designed for different use. So in one respect - 
yes - Polaris (and progeny) had to have far more accurate 
navigation (both to establish origin and then in-flight) 
simply because they were going to go one to several thousand 
miles further  - and any error in origin (and/or flight) 
navigation compound rapidly with distance...  and while we 
intended harm to our target(s) - we equally strove to limit 
any collateral damage...

best regards...

-- 
randy guttery

A Tender Tale - a page dedicated to those Ships and Crews
so vital to the United States Silent Service:
http://tendertale.com

------------------------------

Message: 2
Date: Wed, 14 Mar 2012 10:46:00 -0600
From: Tisha Hayes <tisha.hayes at gmail.com>
Subject: [R-390] R-390A (digital readout)
To: r-390 at mailman.qth.net
Message-ID:
    <CAACTF12eBO2wZJ0r=BdTzMp1OVa6-eHrDGoMbHqVOV+UsTsrmg at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

"R-9XX
The R-9xx is alleged to have contained a small LED digital readout
where the veeder root counter exists in the center of the R-390A. No
documentation or photographs of this model have surfaced yet."
------------------------------------------------------------------------------------------
I could see where something could be cobbled together with a tiny
optical encoder, some digital logic and a display. Going into that
sort of effort would just show you the desired receive frequency and
not the actual frequency. If someone was going to go that far they
might as well replace it with a R-390A version of a digital dial where
you actually are reading the frequency of the radio. That way you
could get around the slightly non-linear performance of a PTO that is
not exactly dialed in to the Hz.

Otherwise all you are doing is replacing a mechanical odometer type of
display with LED's that are reading the same shaft movements.

It is a marvel in itself to keep all of the knobs, odometer display,
cams, PTO, stops and gears all dancing together in synchronicity. That
is one of the things that initially attracted me to the R-390A, that
is is essentially an 80 pound watch with a really good receiver glued
onto the backside (lol).

-- 
Ms. Tisha Hayes/ AA4HA
-
"Life isn't about how to survive the storm, but how to dance in the rain"

------------------------------

Message: 3
Date: Wed, 14 Mar 2012 12:07:13 -0500
From: Randy and Sherry Guttery <comcents at bellsouth.net>
Subject: Re: [R-390] R-390A (digital readout)
To: Tisha Hayes <tisha.hayes at gmail.com>
Cc: r-390 at mailman.qth.net
Message-ID: <4F60D041.1070802 at bellsouth.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 3/14/2012 11:46 AM, Tisha Hayes wrote:
> ... that
> is is essentially an 80 pound watch with a really good receiver glued
> onto the backside...
> Then again...
Ha! you came close to owing me a keyboard with that one!  
Then again..

Tick, tick,  tick  "At the tone... "

-- 
randy guttery

A Tender Tale - a page dedicated to those Ships and Crews
so vital to the United States Silent Service:
http://tendertale.com

------------------------------

Message: 4
Date: Wed, 14 Mar 2012 13:27:45 -0400 (EDT)
From: chuck.rippel at cox.net
Subject: Re: [R-390] R-390A (digital readout)
To: r-390 at mailman.qth.net
Message-ID: <136cc7e.cb0.13612404e1b.Webtop.0 at cox.net>
Content-Type: text/plain; charset=UTF-8; format=flowed

Interesting subject...

If the PTO end points are set up correctly so the mixing scheme and 
tracking pre-selector matches the cam profiles, calibrated to the 
nearest 100kc, the mechanical counter is very accurate.? I've seem some 
accurate to < 100 cycles.
Frequency errors usualy mainfest themselves across band to band changes. 
That is, if a receiver is calibrated to 8.2 mhz and you rotate the MC 
control up to the next band, most receivers will not "land" on 9.2 mhz. 
They will have to be re-calibrated.

The crystals in the oscillator drift a bit over time.? Remember also, 
most are hetrodyned twice, some 3 times where the fundamental error may 
be multiplied.? One could put a counter on the output but still not 
capture the error caused by the crystals in the 1st oscillator.

While its not made for the R390A, perhaps something like this, 
programmed to accommodate the mixing scheme of the R390A might be very 
helpful to some.

http://www.ebay.com/itm/190579917545?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649? 
<http://www.ebay.com/itm/190579917545?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649>

Chuck Rippel

On Wed, Mar 14, 2012 at 12:46 PM, Tisha Hayes wrote:

> "R-9XX The R-9xx is alleged to have contained a small LED digital 
> readout where the veeder root counter exists in the center of the 
> R-390A. No documentation or photographs of this model have surfaced 
> yet."
> 
> ------------------------------------------------------------------------------------------ 
> I could see where something could be cobbled together with a tiny 
> optical encoder, some digital logic and a display. Going into that 
> sort of effort would just show you the desired receive frequency and 
> not the actual frequency. If someone was going to go that far they 
> might as well replace it with a R-390A version of a digital dial where 
> you actually are reading the frequency of the radio. That way you 
> could get around the slightly non-linear performance of a PTO that is 
> not exactly dialed in to the Hz.
> Otherwise all you are doing is replacing a mechanical odometer type of 
> display with LED's that are reading the same shaft movements.
> It is a marvel in itself to keep all of the knobs, odometer display, 
> cams, PTO, stops and gears all dancing together in synchronicity. That 
> is one of the things that initially attracted me to the R-390A, that 
> is is essentially an 80 pound watch with a really good receiver glued 
> onto the backside (lol).
> -- 
> Ms. Tisha Hayes/ AA4HA - "Life isn't about how to survive the storm, 
> but how to dance in the rain"

------------------------------

Message: 5
Date: Wed, 14 Mar 2012 14:02:45 -0400 (EDT)
From: chuck.rippel at cox.net
Subject: Re: [R-390] R-390A (digital readout)
To: r-390 at mailman.qth.net
Message-ID: <cfc53a.ce6.136126057c5.Webtop.0 at cox.net>
Content-Type: text/plain; charset=UTF-8; format=flowed

Link corrected, below.  There is no "V" at the end one Steve's note.

Thanks for the info, Steve !

Chuck

On Wed, Mar 14, 2012 at 1:49 PM, Steve Toth wrote:

  For reference, here's the unit that is designed to work with the R390A 
- same company.
http://electronicspecialtyproducts.com/dd103.html

-- Steve, K7PZN   <http://electronicspecialtyproducts.com/dd103.htmlv>

Solution f or America: "We don't need to tax millionaires more, we need 
more millionaires to tax" 
<http://electronicspecialtyproducts.com/dd103.htmlv>

--- On Wed, 3/14/12, chuck.rippel at cox.net <chuck.rippel at cox.net> wrote:

From: chuck.rippel at cox.net <chuck.rippel at cox.net>
Subject: Re: [R-390] R-390A (digital readout)
To: r-390 at mailman.qth.net
Date: Wednesday, March 14, 2012, 10:27 AM

Interesting subject...

If the PTO end points are set up correctly so the mixing scheme and
tracking pre-selector matches the cam profiles, calibrated to the
nearest 100kc, the mechanical counter is very accurate.  I've seem some
accurate to < 100 cycles.
Frequency errors usualy mainfest themselves across band to band changes.
That is, if a receiver is calibrated to 8.2 mhz and you rotate the MC
control up to the next band, most receivers will not "land" on 9.2 mhz.
They will have to be re-calibrated.

The crystals in the oscillator drift a bit over time.  Remember also,
most are hetrodyned twice, some 3 times where the fundamental error may
be multiplied.  One could put a counter on the output but still not
capture the error caused by the crystals in the 1st oscillator.

While its not made for the R390A, perhaps something like this,
programmed to  accommodate the mixing scheme of the R390A might be very
helpful to some.

http://www.ebay.com/itm/190579917545?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649 
<http://www.ebay.com/itm/190579917545?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649?>
< 
http://www.ebay.com/itm/190579917545?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649 
<http://www.ebay.com/itm/190579917545?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649> 
>

Chuck Rippel
> but how to dance in the rain"

------------------------------

Message: 6
Date: Wed, 14 Mar 2012 14:10:34 -0400
From: "Jim" <jbrannig at verizon.net>
Subject: Re: [R-390] R-390A (digital readout)
To: "Tisha Hayes" <tisha.hayes at gmail.com>,    <r-390 at mailman.qth.net>
Message-ID: <B1C4136CD0CF4287B0C943EBC6F91245 at DJCK4V71>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
    reply-type=original

I've always struggled with describing the R-390A to others.....

Analog computer, mechanical marvel...etc......

You hit the nail on the head........

Jim

> is one of the things that initially attracted me to the R-390A, that
> is is essentially an 80 pound watch with a really good receiver glued
> onto the backside (lol).
> 
> -- 
> Ms. Tisha Hayes/ AA4HA

------------------------------

Message: 7
Date: Wed, 14 Mar 2012 11:19:28 -0700
From: "Chris Kepus" <ckepus at comcast.net>
Subject: Re: [R-390] R-390A (digital readout)
To: "'Tisha Hayes'" <tisha.hayes at gmail.com>
Cc: r-390 at mailman.qth.net
Message-ID: <002701cd020e$ff0e7e30$fd2b7a90$@net>
Content-Type: text/plain;    charset="us-ascii"

Tisha,
Thanks for the laugh (.."an 80 pound watch with a really good receiver glued
onto the backside..").  Fortunately, I wasn't in the middle of a swallow of
coffee.
73,
Chris
W7JPG

------------------------------

Message: 8
Date: Wed, 14 Mar 2012 13:30:40 -0500
From: Ben Loper <brloper at gmail.com>
Subject: Re: [R-390] R-390A (digital readout)
To: Chris Kepus <ckepus at comcast.net>
Cc: r-390 at mailman.qth.net, Tisha Hayes <tisha.hayes at gmail.com>
Message-ID:
    <CALYg2+GKoxMfpp9tyi73HUioionNrxGhG858DccOvvCAdOU=Rg at mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

One thing I've had for many years is a BC-221.  I use it all the time, it
remarkably accurate.

On Wed, Mar 14, 2012 at 1:19 PM, Chris Kepus <ckepus at comcast.net> wrote:

> Tisha,
> Thanks for the laugh (.."an 80 pound watch with a really good receiver
> glued
> onto the backside..").  Fortunately, I wasn't in the middle of a swallow of
> coffee.nly
> 73,
> Chris
> W7JPG
>
>
> ______________________________________________________________
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-- 
"he who knows he has enough is rich."

**

------------------------------

Message: 9
Date: Wed, 14 Mar 2012 18:53:04 +0000
From: William A Kulze <wak9 at CORNELL.EDU>
Subject: Re: [R-390] R-390A (digital readout)
To: "r-390 at mailman.qth.net" <r-390 at mailman.qth.net>
Message-ID:
    <DCDDF316CAFDAC4AA1A1F748E05C2F430A69D069 at MBXE-02.exchange.cornell.edu>

Content-Type: text/plain; charset="us-ascii"

The best I could ever come up with was a "mechanical digital readout, something like the odometer in your car". Didn't know at the time it was called a veeder root counter.

Bill W2NVD

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net] On Behalf Of Jim
Sent: Wednesday, March 14, 2012 2:11 PM
To: Tisha Hayes; r-390 at mailman.qth.net
Subject: Re: [R-390] R-390A (digital readout)

I've always struggled with describing the R-390A to others.....

Analog computer, mechanical marvel...etc......

You hit the nail on the head........

Jim

------------------------------

Message: 10
Date: Wed, 14 Mar 2012 14:59:23 -0400
From: "Todd, KA1KAQ" <ka1kaq at gmail.com>
Subject: Re: [R-390] R-390a.net ?
To: Jeff Adams <physicist at cox.net>
Cc: R-390 at mailman.qth.net
Message-ID:
    <CANCs6AVhQAvi=jtcG5SKzTD=aTUepH19RDwCA=Og+y9VfWgDAA at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

I could swear I saw and possibly even have a photo of said receiver. It was
perhaps a decade or more ago on here when a discussion of the R-390B (non-A
non-391 non-392 non-non) took place. Cannot remember from who it came,
maybe Prof. Locklear or someone else in the discussion. A couple
XprototypeX receivers showed up on eBay sometime later.

Maybe it was you, Jeff? Dunno.

de Todd/'Boomer'  KA1KAQ/4

On Wed, Mar 14, 2012 at 1:22 AM, Jeff Adams <physicist at cox.net> wrote:

> Who runs this website:       r-390a.net   ?   I forget..
>
> *
> R-9XX
>
> *
> The R-9xx is alleged to have contained a small LED digital readout where
> the veeder root counter exists in the center of the R-390A. No
> documentation or photographs of this model have surfaced yet.
>
>
>
>
> ^  I just sent you a message about a manual that no one has ever
> found..I got one..
>
>

------------------------------

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End of R-390 Digest, Vol 95, Issue 25
*************************************