[R-390] SSB Reception with R-390A

Bob Tetrault [email protected]
Fri, 1 Nov 2002 14:21:29 -0800


Word!

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Drew Papanek
Sent: Friday, November 01, 2002 2:05 PM
To: [email protected]
Subject: [R-390] SSB Reception with R-390A






Hello All,

My vote for SSB reception is the 2 diode (Lankford) modification for its
simplicity.   This method works quite well.   A couple of points:
1.  Make sure that AGC capacitors are not leaky, especially the large oil
filled unit atop IF deck (This should not be a problem for Bruce as his
receiver was done by Rick Mish)    2.  When increasing BFO injection
capacitance remember to adjust BFO neutralization in AGC IF amp.

The 2 diode modification gives good SSB reception even without altering BFO
injection.  Done this way and with AGC capacitors verified leak-free (by Dr.
Jerry's method) I have not found any change to reception of AM and CW
signals strong or weak.

Capt. Paul Lee's 6BE6 product detector modification has been mentioned.  The
National NC-300 uses a 6BE6 as a product detector giving good results; this
should perform satifactorily in the R-390A (although the NC-300's final IF
is 85 KHz vs R-390A at 455 KHz).  Lee's R-390A mod calls for alteration of
mainframe wiring harness to run shielded audio cables to a multisection BFO
switch.  This accounts for some of the "invasiveness" of the mod.  I would
suggest leaving mainframe wiring and BFO switch intact and use a small relay
in IF module for audio switching.  The relay would be powered by B+ switched
to the BFO-turned-product detector when in SSB/CW mode.  A quick perusal of
Mouser's catalog shows a 24V relay with coil power consumption of 70 mW.  A
series dropping resistor to operate this relay from the (approx.) 180V B+
line would dissipate only 450 mW.   In this fashion modification would be
limited to IF module only.

Drew




>From: [email protected]
>Reply-To: [email protected]
>To: [email protected]
>Subject: R-390 digest, Vol 1 #450 - 16 msgs
>Date: Thu, 31 Oct 2002 22:31:01 -0500 (EST)
>
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>
>
>Today's Topics:
>
>    1. Re: UPS is Garbage (WA5JCI)
>    2. Re: UPS is Garbage (Barry Hauser)
>    3. RE: UPS is Garbage (Scott, Barry (Clyde B))
>    4. FedX ground much better than UPS (Terry O'Laughlin)
>    5. Re: FedX ground much better than UPS (Gregory Mengell)
>    6. Re: FedX ground much better than UPS (Cecil Acuff)
>    7. Re: FedX ground much better than UPS (Walter Wilson)
>    8. Re: UPS Drop kicked my R-391 ! (Cecil Acuff)
>    9. Double Boxing an R-389/R-390/R-390A/R-391 to avoid damage
>([email protected])
>   10. Purchase Advice (Roy Morgan)
>   11. Re: Purchase Advice (Joe Foley)
>   12. Re: Purchase Advice ([email protected])
>   13. Re: UPS Drop kicked my R-391 ! (laffitte)
>   14. James Knight 100 kc Crystal question (Mike Sullivan)
>   15. RE: James Knight 100 kc Crystal question (Bob Tetrault)
>   16. SSB reception with R-390A (Bruce Bennett)
>
>--__--__--
>
>Message: 1
>From: "WA5JCI" <[email protected]>
>To: <[email protected]>, <[email protected]>
>Subject: Re: [R-390] UPS is Garbage
>Date: Thu, 31 Oct 2002 11:52:45 -0600
>
>Greetings,
>
>I once received a radio COD with UPS the carrier. The next thing I knew I
>was being billed by a collection agency for the COD money. No one listened
>and I kept getting the collection agency notices. Finally fed up, I wrote
>the UPS CEO
>and asked if UPS, since the shipment was COD, was accusing me of stealing
>the radio off the UPS truck. No more collection notices.
>
>BTW, shipments by bus is a pretty good way to go but you have to go to the
>bus station to pick up the goods.
>
>es 73 de Pete WA5JCI   EM21jv
>
>6 Mtr VUCC#361/787 Confirmed--2 Mtr VUCC#346/190 Confirmed
>6 Mtr WAS#490--6 Mtr DXCC#404/120 Confirmed
>Charter Life Member CSVHFS #28
>6 Mtr WAC-CW
>If the universe contains advanced life forms where is everybody?
>Fermi's paradox
>
>
>
>--__--__--
>
>Message: 2
>From: "Barry Hauser" <[email protected]>
>To: "Randy Zelick" <[email protected]>,
>	<[email protected]>, "Paul Beckwith" <[email protected]>
>Subject: Re: [R-390] UPS is Garbage
>Date: Thu, 31 Oct 2002 13:11:27 -0500
>
>Randy Zelick wrote
> >
> > >"I then talked to the legal department at work, and according to their
>view
> > >when a package leaves the sender that you have paid for, it is now
>legally
> > >your possession".
>
>Hi Randy, Paul and gang:
>
>With all due respects to your co's. legal department, there's shipping and
>there's shipping.  They may be interpreting based on what's more typical
>for
>a big company regarding truck freight shipments.  If the purchasing company
>buys a gross of widgets from the selling company, the terms are usually
>"FOB
>our warehouse", etc.  It is usually the purchasing entity that is
>contracting for the freight.  So as soon as the widgets are picked up at
>the
>loading dock, it becomes the purchaser's responsibility -- the
>carrier/freight co. is an agent of the purchaser.  Sometimes a commercial
>seller may arrange for a trucking co., as a courtesy, but the trucker may
>still be working for the purchaser.
>
>Often, it depends on who paid the carrier directly.  If you paid the epay
>seller for the item plus shipping and he actually paid UPS, then he's the
>shipper of record, and, yes, claims (at least of nondelivery) technically
>have to go through him.  If you pay an MBE place, they are the shipper of
>record.
>
>HOWEVER, in the event that's not possible because the shipper is defunct, I
>think UPS is still responsible.  I had some shipments misrouted and delayed
>a couple of weeks.  I also had something get lost for a month.  If a
>package
>is badly misrouted or something happens to the label, it can get lost for a
>long time, and still show up.  In any event, when dealing with bureaucratic
>functionaries, you have to make a class A pest of yourself.
>
>What makes you think the seller went belly up?  If it was through epay, you
>can use their phone number lookup thing and try that.
>
>I would keep pushing that, even as a matter of principle.  It may be
>necessary to go several levels up as UPS clerk/reps are there mostly to get
>you off the phone.  They know little and are able to do even less.  If your
>company is a UPS shipper, see if you can't talk to their commercial rep.
>He
>or she may be able to get results.  Also, keep watching the tracking number
>on the UPS site.  It may emerge and start moving again.
>
>Another 2 cents.
>
>Barry
>
>
>
>--__--__--
>
>Message: 3
>From: "Scott, Barry (Clyde B)" <[email protected]>
>To: [email protected]
>Subject: RE: [R-390] UPS is Garbage
>Date: Thu, 31 Oct 2002 13:35:32 -0600
>
>True, but the bus station is open pretty much all the time.  Also, they
>don't come to your house and drop the package on your front porch when no
>one is home.
>
>Barry - N4BUQ
>
><snip>
>
> > BTW, shipments by bus is a pretty good way to go but you have
> > to go to the
> > bus station to pick up the goods.
> >
> > es 73 de Pete WA5JCI   EM21jv
> >
>
>--__--__--
>
>Message: 4
>Date: Thu, 31 Oct 2002 13:51:17 -0600
>To: [email protected]
>From: Terry O'Laughlin <[email protected]>
>Subject: [R-390] FedX ground much better than UPS
>
>I have shipped and received dozens of packages via Fed X ground.  This
>includes several R-390s, R-389s, and many pieces of even heavier
>equipment.  I've never even had a box get damaged, let alone the contents.
>
>UPS is the gorilla in the old Samsonite TV ads.
>
>73
>Terry O'
>WB9GVB
>
>
>--__--__--
>
>Message: 5
>Date: Thu, 31 Oct 2002 12:16:38 -0800
>From: Gregory Mengell <[email protected]>
>Subject: Re: [R-390] FedX ground much better than UPS
>To: [email protected],
>	Terry O'Laughlin <[email protected]>
>
>I recently purchased a R 1051b.The UPS guy pulls ups .I see him try to take
>the box off the back of the truck ,then carefully drops it the last foot or
>so from the truck to the ground.Luckily only the outer box was damaged.I
>have never seen Fed x pull that stunt.73 Gregory
>----- Original Message -----
>From: "Terry O'Laughlin" <[email protected]>
>To: <[email protected]>
>Sent: Thursday, October 31, 2002 11:51 AM
>Subject: [R-390] FedX ground much better than UPS
>
>
> > I have shipped and received dozens of packages via Fed X ground.  This
> > includes several R-390s, R-389s, and many pieces of even heavier
> > equipment.  I've never even had a box get damaged, let alone the
>contents.
> >
> > UPS is the gorilla in the old Samsonite TV ads.
> >
> > 73
> > Terry O'
> > WB9GVB
> >
> > _______________________________________________
> > R-390 mailing list
> > [email protected]
> > http://mailman.qth.net/mailman/listinfo/r-390
>
>
>--__--__--
>
>Message: 6
>From: "Cecil Acuff" <[email protected]>
>To: "Gregory Mengell" <[email protected]>,
>	<[email protected]>,
>	"Terry O'Laughlin" <[email protected]>
>Subject: Re: [R-390] FedX ground much better than UPS
>Date: Thu, 31 Oct 2002 17:04:45 -0600
>
>Greetings,
>
>My experiences have been quite the opposite.  The last R-1051 that arrived
>via FedEx came with a damaged front panel from being dropped on it's face.
>Repairable....Yes!  The one prior to that....I watched in horror as the
>FedEx guy carried it down the walkway on a hand truck.  The box had a hole
>the size of your fist ripped in the side of it and parts were falling out
>as
>he trucked along.
>
>I have shipped probably a dozen R-1051's this year via UPS and not had one
>physically damaged.  I have also received several from customers without
>damage.
>
>A lot has to do with packing methods....don't use peanuts or bubble
>wrap...it don't work!!!  1/2 or 5/8 sheets of foam....like the stuff they
>nail on the outside of your new house...cut to size to sandwitch the
>contents to where they can't move in any direction (with protection for
>protrusions like knobs and connectors) is the ticket!  Also a heavy duty
>box
>is necessary....look for large computer monitor boxes. (I use Dell boxes)
>All the effort to do a great packing job is totally wasted when the side
>comes out of your wimpy box!
>
>Cecil Acuff
>www.r1051.com
>
>----- Original Message -----
>From: Gregory Mengell <[email protected]>
>To: <[email protected]>; Terry O'Laughlin <[email protected]>
>Sent: Thursday, October 31, 2002 2:16 PM
>Subject: Re: [R-390] FedX ground much better than UPS
>
>
> > I recently purchased a R 1051b.The UPS guy pulls ups .I see him try to
>take
> > the box off the back of the truck ,then carefully drops it the last foot
>or
> > so from the truck to the ground.Luckily only the outer box was damaged.I
> > have never seen Fed x pull that stunt.73 Gregory
> > ----- Original Message -----
> > From: "Terry O'Laughlin" <[email protected]>
> > To: <[email protected]>
> > Sent: Thursday, October 31, 2002 11:51 AM
> > Subject: [R-390] FedX ground much better than UPS
> >
> >
> > > I have shipped and received dozens of packages via Fed X ground.  This
> > > includes several R-390s, R-389s, and many pieces of even heavier
> > > equipment.  I've never even had a box get damaged, let alone the
>contents.
> > >
> > > UPS is the gorilla in the old Samsonite TV ads.
> > >
> > > 73
> > > Terry O'
> > > WB9GVB
> > >
> > > _______________________________________________
> > > R-390 mailing list
> > > [email protected]
> > > http://mailman.qth.net/mailman/listinfo/r-390
> >
> > _______________________________________________
> > R-390 mailing list
> > [email protected]
> > http://mailman.qth.net/mailman/listinfo/r-390
>
>
>--__--__--
>
>Message: 7
>Reply-To: "Walter Wilson" <[email protected]>
>From: "Walter Wilson" <[email protected]>
>To: "Gregory Mengell" <[email protected]>,
>	<[email protected]>,
>	"Terry O'Laughlin" <[email protected]>
>Subject: Re: [R-390] FedX ground much better than UPS
>Date: Thu, 31 Oct 2002 18:08:16 -0500
>
>I've had good luck with FedEx ground, and now will not ship any other way.
>They also seem to be a few bucks cheaper, but I do have to take the package
>and drop it off at their facility.
>
>Walter Wilson - KK4DF
>http://r-390a.us
>(REAL Radios: R-390A, R-390, T-368E, Ranger, Thunderbolt, KWM-2A)
>
>----- Original Message -----
>From: "Gregory Mengell" <[email protected]>
>To: <[email protected]>; "Terry O'Laughlin"
><[email protected]>
>Sent: Thursday, October 31, 2002 3:16 PM
>Subject: Re: [R-390] FedX ground much better than UPS
>
>
> > I recently purchased a R 1051b.The UPS guy pulls ups .I see him try to
>take
> > the box off the back of the truck ,then carefully drops it the last foot
>or
> > so from the truck to the ground.Luckily only the outer box was damaged.I
> > have never seen Fed x pull that stunt.73 Gregory
> > ----- Original Message -----
> > From: "Terry O'Laughlin" <[email protected]>
> > To: <[email protected]>
> > Sent: Thursday, October 31, 2002 11:51 AM
> > Subject: [R-390] FedX ground much better than UPS
> >
> >
> > > I have shipped and received dozens of packages via Fed X ground.  This
> > > includes several R-390s, R-389s, and many pieces of even heavier
> > > equipment.  I've never even had a box get damaged, let alone the
>contents.
> > >
> > > UPS is the gorilla in the old Samsonite TV ads.
> > >
> > > 73
> > > Terry O'
> > > WB9GVB
> > >
> > > _______________________________________________
> > > R-390 mailing list
> > > [email protected]
> > > http://mailman.qth.net/mailman/listinfo/r-390
> >
> > _______________________________________________
> > R-390 mailing list
> > [email protected]
> > http://mailman.qth.net/mailman/listinfo/r-390
> >
>
>
>--__--__--
>
>Message: 8
>From: "Cecil Acuff" <[email protected]>
>To: <[email protected]>, <[email protected]>
>Subject: Re: [R-390] UPS Drop kicked my R-391 !
>Date: Thu, 31 Oct 2002 17:18:25 -0600
>
>Radio's I have received from third party packing places have been terribly
>packaged in light duty boxes in most cases.  They probably do a great job
>on
>things that weigh less than 10lbs....but a 70+ lb radio has to be packed
>using different methods.  Even some of the foam in place stuff is not
>good...the foam is not structurally able to handle the weight of the item
>in
>a lot of cases...compressing when stressed and leaving a void for the
>object
>to clank around in the rest of the trip...usually resulting in damage!
>
>Cecil....
>----- Original Message -----
>From: <[email protected]>
>To: <[email protected]>
>Sent: Thursday, October 31, 2002 8:49 AM
>Subject: [R-390] UPS Drop kicked my R-391 !
>
>
> > Well, my earlier post about my new R-391 "clanking and rattling" in the
>back
> > of a UPS truck turns out to be quite prophetic. Upon unpacking it seems
>it
> > was dropped on its left side (facing the radio) impacting on the edge of
>the
> > front panel causing the front panel to shift to the right. The shafts
>out
>of
> > the I.F. deck are bent, the ANT Trimmer shaft snapped and the counter
>does
> > not turn when the MC or KC knobs are rotated. My questions for the group
>are
> > not about repair at this point but has anyone had a similar experience
>with
> > UPS? I called their CS department and they are sending someone to
>inspect
>the
> > damage. The seller had it packed and shipped from The Box Place in Ohio.
> >
> > Are they going to ask for repair estimates?
> >
> > Will they refund me the purchase price ($700.00) or a portion there of?
> >
> > Will UPS ask for the radio back? I would like to keep it. I think
>eventually
> > it can be repaired.
> >
> > Any guidance is appreciated.
> >
> > Phil
> >
> >
> > --- StripMime Report -- processed MIME parts ---
> > multipart/alternative
> >   text/plain (text body -- kept)
> >   text/html
> > The reason this message is shown is because the post was in HTML
> > or had an attachment. Attachments are not allowed.
> > Please post in Plain-Text only.---
> > _______________________________________________
> > R-390 mailing list
> > [email protected]
> > http://mailman.qth.net/mailman/listinfo/r-390
>
>
>--__--__--
>
>Message: 9
>From: [email protected]
>Date: Thu, 31 Oct 2002 18:43:00 EST
>To: [email protected]
>Subject: [R-390] Double Boxing an R-389/R-390/R-390A/R-391 to avoid damage
>
><PRE>Greetings to everyone! I recently joined the mailing list and hope I
>can
>contribute. In my experiences in shipping these radios I have always seemed
>to have pretty good success when I insist on having the receiver
>Double-Boxed. Even if the shipper does not do a first-class job of packing,
>the chances of survival are much greater if I have the sender double-box
>the
>radio. Especially on eBay ask the seller to describe how he will be packing
>the radio while you are bidding, before the auction is over, and insist on
>having the radio double-boxed. A seller who is concerned will always try to
>do his best to make sure the radio will arrive safely. So far I have never
>had a radio arrive in damaged condition when it was double-boxed. I am sure
>there are exceptions to this but double-boxing increases the radio's
>chances
>for survival tremendously. 73 Todd WD4NGG .
>
>--__--__--
>
>Message: 10
>Date: Thu, 31 Oct 2002 18:56:11 -0500
>To: [email protected]
>From: Roy Morgan <[email protected]>
>Subject: [R-390] Purchase Advice
>
>R-390 Aficionados,
>
>An esteemed colleague (Don Reaves) has suggested I re post this to the
>R-390 list.
>The fellow posting to the Collins list was asking for advice on whether he
>should buy an R-390A or not.
>
>
>At 08:20 PM 10/27/02 -0500, AL MANHAN wrote:
>
>  >Gentlemen of Collins,
>  >
>  >I have a chance to buy a nice R390A at a good price but It blows the B+
>1/8
>  >ampere fuse, otherwise in terrific shape.
>  >Would this be a sale to avoid or go ahead?
>
>
>Al,
>
>There are some factors to consider:
>
>A.  Money
>B.  Your skill at fixing things
>C.  A friend's skill at fixing things.
>
>If you have lots of A, buy it.
>
>If you have a modest amount of A and lots of B or C, buy it.
>
>If you have a little of A, and no R-390 at all, buy it and acquire B or C.
>
>If you have no A at all but lots of B, use B to get A and buy it.
>
>I guess the bottom line is: buy it.
>
>Roy
>- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
>7130 Panorama Drive, Derwood MD 20855
>Home: 301-330-8828 Work: Voice: 301-975-3254,  Fax: 301-948-6213
>[email protected] --
>
>
>--__--__--
>
>Message: 11
>Date: Thu, 31 Oct 2002 16:05:45 -0800 (PST)
>From: Joe Foley <[email protected]>
>Subject: Re: [R-390] Purchase Advice
>To: [email protected]
>
>
> > There are some factors to consider:
> >
> > A.  Money
> > B.  Your skill at fixing things
> > C.  A friend's skill at fixing things.
> >
> > If you have lots of A, buy it.
> >
> > If you have a modest amount of A and lots of B or C,
> > buy it.
> >
> > If you have a little of A, and no R-390 at all, buy
> > it and acquire B or C.
> >
> > If you have no A at all but lots of B, use B to get
> > A and buy it.
> >
> > I guess the bottom line is: buy it.
>+++++++
>Oh, definitely!
>
>All inputs on this flow chart lead, eventually, to
>output = BUY IT!
>
>Now, then, IF you find that "C" applies to the seller,
>even if he is a friend, and you have more "B" than he
>has "C" then it should take less "A"!
>
>Um,.....
>
>IF "B">"C"  THEN <"A"
>
>Or something,
>
>Joe
>
>
>
>__________________________________________________
>Do you Yahoo!?
>HotJobs - Search new jobs daily now
>http://hotjobs.yahoo.com/
>
>--__--__--
>
>Message: 12
>From: [email protected]
>Date: Thu, 31 Oct 2002 19:14:19 EST
>Subject: Re: [R-390] Purchase Advice
>To: [email protected], [email protected]
>
>
>In a message dated 10/31/02 6:07:48 PM, [email protected] writes:
>
><< Now, then, IF you find that "C" applies to the seller,
>even if he is a friend, and you have more "B" than he
>has "C" then it should take less "A"!
>
>Um,.....
>
>IF "B">"C"  THEN <"A"
>
>Or something,
>
>Joe
>  >>
>
>Still kickin' beehives 'eh?
>
>Igor Lab Assistant
>
>
>--__--__--
>
>Message: 13
>From: "laffitte" <[email protected]>
>To: <[email protected]>
>Subject: Re: [R-390] UPS Drop kicked my R-391 !
>Date: Thu, 31 Oct 2002 20:07:52 -0500
>
>Hi Guys,
>
>   You know, I have sent 6 R390s including a 392 by USPS Parcel Post
>Insured.
>Not one has arrived damaged or mangled in any way. So I give 5 stars to our
>old but reliable US Postal Service. By the way, my radios travel by both
>ground and sea.
>
>Best 73s to all
>Guido Santacana KP4FAR
>
>
>
>--__--__--
>
>Message: 14
>Date: Thu, 31 Oct 2002 20:46:53 -0500
>From: Mike Sullivan <[email protected]>
>Reply-To: [email protected]
>To: "[email protected]" <[email protected]>
>Subject: [R-390] James Knight 100 kc Crystal question
>
>Looking for the base diagram of the 100kc T-9 crystal mounted in an
>metal octal tube enclosure. What pins on the octal plug do I connect to
>reach the crystal??
>
>Mike
>kc2kj
>
>--__--__--
>
>Message: 15
>From: "Bob Tetrault" <[email protected]>
>To: <[email protected]>, <[email protected]>
>Subject: RE: [R-390] James Knight 100 kc Crystal question
>Date: Thu, 31 Oct 2002 18:14:57 -0800
>
>The ones that measure open on the Ohmmeter? ;-)
>
>-----Original Message-----
>From: [email protected] [mailto:[email protected]]On
>Behalf Of Mike Sullivan
>Sent: Thursday, October 31, 2002 5:47 PM
>To: [email protected]
>Subject: [R-390] James Knight 100 kc Crystal question
>
>
>Looking for the base diagram of the 100kc T-9 crystal mounted in an
>metal octal tube enclosure. What pins on the octal plug do I connect to
>reach the crystal??
>
>Mike
>kc2kj
>_______________________________________________
>R-390 mailing list
>[email protected]
>http://mailman.qth.net/mailman/listinfo/r-390
>
>--__--__--
>
>Message: 16
>Date: Thu, 31 Oct 2002 18:21:31 -0800 (PST)
>From: Bruce Bennett <[email protected]>
>To: [email protected]
>Subject: [R-390] SSB reception with R-390A
>
>Hello everyone -
>   I am pleased to be able to say that I will finally
>be able to buy an EAC R-390A remanufactured by Rick
>Mish within the next week or so. I am really looking
>forward to seeing what this wonderful receiver can do
>on the SW and BC bands. I am also curious about some
>possible SSB mods and would like to ask what you think
>the pros and cons are for the following possibilities
>-
>
>1. The 2 diode mod of Dallas Lankford.
>2. The use of the CV-591
>3. The older mod from Capt. Paul Lee changing the BFO
>to a 6BE6.
>
>I would appreciate any comments you have.
>
>73,
>Bruce  K6RQR
>
>__________________________________________________
>Do you Yahoo!?
>HotJobs - Search new jobs daily now
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