[R-390] lost reception 1-2 mhz

jm josemic at gmail.com
Thu May 23 04:28:01 EDT 2019


 Hi guys,

I have a strange problem. There is no reception in the 1 Mhz segment. There
is no static and when cal is on it is only a weak tone what I hear.

Apparently, the problem affects only to that band.

Can you help me?
Thanks,
Jose

El jue., 23 may. 2019 a las 6:59, <r-390-request at mailman.qth.net> escribió:

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> Today's Topics:
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>    1. Re: New R390 (W2xj)
>    2. Re: New R390 (Robert Nickels)
>    3. Re: New R390 (Joe Koester)
>    4. Re: New R390 (Joe Koester)
>    5. Re: misc posts (Perry Sandeen)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 22 May 2019 22:48:57 -0400
> From: W2xj <W2xj at w2xj.net>
> To: k6fsb at arrl.net
> Cc: R-390 List <r-390 at mailman.qth.net>
> Subject: Re: [R-390] New R390
> Message-ID: <D828E545-3DDC-459C-8CF6-88AF53B946C9 at w2xj.net>
> Content-Type: text/plain;       charset=utf-8
>
> Yes but in ?real? wartime (1967 mideast war) we used Racals as the
> preferred R390 replacement. They were much more advanced technology. They
> were the first choice of the electronic intercept guys.
>
> Sent from my iPad
>
> > On May 22, 2019, at 10:34 PM, Renee K6FSB <k6fsb.1 at gmail.com> wrote:
> >
> > The R725 is the ladies radio, cute and pleasing audio....not sure about
> the 389
> > Ren?e, K6FSB
> >
> >
> >> On 2019-05-22 7:23 p.m., William J. Neill via R-390 wrote:
> >> And I wonder where the R-389 and R-725 stand in this pecking order?
> >>
> >> Bill Neill
> >> Conroe, Texas\
> >>
> >>> On May 22, 2019, at 20:26, <jgedde at optonline.net> <
> jgedde at optonline.net> wrote:
> >>>
> >>> "The R-390 is a mans radio, the R-390A is a boys radio." I'd love to
> hear more about why that is...  I wanna be a man!  LOL
> >>>
> >>> I fixed two more issues tonight  The big giant 10 uF Vitamin Q B+
> filter cap was acting up and causing the hum (ripple was falling below the
> dropout voltage on the regulator.)  I hid a modern electrolytic down inside
> and abandoned the monster oil filled unit in place.  Another issue was a
> metal shaft for the antenna trim...  Needs to be non-conductive.  I lathe
> turned a new one from Delrin - issues (overloading) gone.  Fiberglass might
> be nicer and strongerbut I don't have any.
> >>>
> >>> John
> >>>
> >>> -----Original Message-----
> >>> From: Les Locklear <leslocklear at hotmail.com>
> >>> Sent: Tuesday, May 21, 2019 8:41 AM
> >>> To: jgedde at optonline.net; 'r390a' <r-390 at mailman.qth.net>
> >>> Subject: Re: [R-390] New R390
> >>>
> >>> In the immortal words of Neil Clyne G8LIU "The R-390 is a mans radio,
> the R-390A is a boys radio."
> >>>
> >>> Les Locklear
> >>> Dx'ing since '57
> >>>
> >>>
> >>>
> >>> ----- Original Message -----
> >>> From: <jgedde at optonline.net>
> >>> To: 'r390a' <r-390 at mailman.qth.net>
> >>> Sent: 5/20/2019 6:32:27 PM
> >>> Subject: [R-390] New R390
> >>>
> ________________________________________________________________________________
> >>>
> >>> Hiya all,
> >>>
> >>> My new to me R390 arrived Friday.  SN 2445.  It's a bit of a needing
> TLC beast, but as of tonight I got it receiving stations.  A lot more to
> do, but I'm making progress....  This time I'll post a "before picture."
> It's not strictly a "before" photo since I've done a lot of cleaning, but
> it's how she stands right now.  Ugly but not for long...
> >>>
> >>> I fixed the power regulator circuit, aligned the IF, fixed the AF
> deck.  A lot of burned up and/or broken resistors as a result of a tube
> failure (cracked glass and short).  Right now, the RF stage is woefully out
> of whack, the unit jumps frequency (by 30 kHz or so) randomly (cause TBD),
> the squelch doesn't work, the
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 22 May 2019 22:38:18 -0500
> From: Robert Nickels <ranickel at comcast.net>
> To: r-390 at mailman.qth.net
> Subject: Re: [R-390] New R390
> Message-ID: <e172ce18-e2ee-71a5-0ff0-0f7c8e2ff52a at comcast.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> On 5/22/2019 9:23 PM, William J. Neill via R-390 wrote:
> > And I wonder where the R-389 and R-725 stand in this pecking order?
>
> The R-389 is like the bass singer in a quartet.
>
> 73, Bob W9RAN
>
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 22 May 2019 23:08:18 -0500
> From: "Joe Koester" <jwkoest at charter.net>
> To: <k6fsb at arrl.net>, "'William J. Neill'" <wjneill at consolidated.net>,
>         <jgedde at optonline.net>
> Cc: 'R-390 List' <r-390 at mailman.qth.net>
> Subject: Re: [R-390] New R390
> Message-ID: <[email protected]>
> Content-Type: text/plain;       charset="utf-8"
>
> Let's see, a man's radio, a boy's radio, and now a lady's radio.  That's
> amazing.  What criteria did you use to come up with this?  Assume you have
> heard an R390 and an R390S, but have you heard an R725?
>
> Inquiring minds want to know!
>
> 73s,
>
> Joe
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
> On Behalf Of Renee K6FSB
> Sent: Wednesday, May 22, 2019 9:35 PM
> To: William J. Neill <wjneill at consolidated.net>; jgedde at optonline.net
> Cc: R-390 List <r-390 at mailman.qth.net>
> Subject: Re: [R-390] New R390
>
> The R725 is the ladies radio, cute and pleasing audio....not sure about
> the 389 Ren?e, K6FSB
>
>
> On 2019-05-22 7:23 p.m., William J. Neill via R-390 wrote:
> > And I wonder where the R-389 and R-725 stand in this pecking order?
> >
> > Bill Neill
> > Conroe, Texas\
> >
> >> On May 22, 2019, at 20:26, <jgedde at optonline.net> <jgedde at optonline.net>
> wrote:
> >>
> >> "The R-390 is a mans radio, the R-390A is a boys radio." I'd love to
> hear more about why that is...  I wanna be a man!  LOL
> >>
> >> I fixed two more issues tonight  The big giant 10 uF Vitamin Q B+
> filter cap was acting up and causing the hum (ripple was falling below the
> dropout voltage on the regulator.)  I hid a modern electrolytic down inside
> and abandoned the monster oil filled unit in place.  Another issue was a
> metal shaft for the antenna trim...  Needs to be non-conductive.  I lathe
> turned a new one from Delrin - issues (overloading) gone.  Fiberglass might
> be nicer and strongerbut I don't have any.
> >>
> >> John
> >>
> >> -----Original Message-----
> >> From: Les Locklear <leslocklear at hotmail.com>
> >> Sent: Tuesday, May 21, 2019 8:41 AM
> >> To: jgedde at optonline.net; 'r390a' <r-390 at mailman.qth.net>
> >> Subject: Re: [R-390] New R390
> >>
> >> In the immortal words of Neil Clyne G8LIU "The R-390 is a mans radio,
> the R-390A is a boys radio."
> >>
> >> Les Locklear
> >> Dx'ing since '57
> >>
> >>
> >>
> >> ----- Original Message -----
> >> From: <jgedde at optonline.net>
> >> To: 'r390a' <r-390 at mailman.qth.net>
> >> Sent: 5/20/2019 6:32:27 PM
> >> Subject: [R-390] New R390
> >>
> ________________________________________________________________________________
> >>
> >> Hiya all,
> >>
> >> My new to me R390 arrived Friday.  SN 2445.  It's a bit of a needing
> TLC beast, but as of tonight I got it receiving stations.  A lot more to
> do, but I'm making progress....  This time I'll post a "before picture."
> It's not strictly a "before" photo since I've done a lot of cleaning, but
> it's how she stands right now.  Ugly but not for long...
> >>
> >> I fixed the power regulator circuit, aligned the IF, fixed the AF
> deck.  A lot of burned up and/or broken resistors as a result of a tube
> failure (cracked glass and short).  Right now, the RF stage is woefully out
> of whack, the unit jumps frequency (by 30 kHz or so) randomly (cause TBD),
> the squelch doesn't work, the antenna relay is marginal, an intermittent
> issue where it goes dead until I cycle power, or it starts humming bad
> until I
> >> cycle power (almost like a LF oscillation), etc.    I thinks it's a B+
> >> oscillation in the regulator.  I'll get it sorted out.
> >>
> >> So far my observations are that the R390 has smoother audio and is much
> more stable (apart from the frequency jumping) than my R390A which allows
> ECSS on the R390 which I can't do for more than a short time on the R390A.
> But as a negative, the R390 puts out an huge amount of heat from the
> regulators!
> >> Definitely a winter radio.  Heats the room.  Apart from that my
> complaints are that the R390 is not as easy to work on as the R390A.  Not
> even close.
> >>
> >> John
> >>
> >> ______________________________________________________________
> >> R-390 mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/r-390
> >> Help: http://mailman.qth.net/mmfaq.htm
> >> Post: mailto:R-390 at mailman.qth.net
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> > ______________________________________________________________
> > R-390 mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/r-390
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:R-390 at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> >
>
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 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: 4
> Date: Wed, 22 May 2019 23:09:28 -0500
> From: "Joe Koester" <jwkoest at charter.net>
> To: <W9RAN at oneradio.net>,       <r-390 at mailman.qth.net>
> Subject: Re: [R-390] New R390
> Message-ID: <[email protected]>
> Content-Type: text/plain;       charset="us-ascii"
>
> That's good - I like that.  Reminds me of the Statler Brothers!
>
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
> On Behalf Of Robert Nickels
> Sent: Wednesday, May 22, 2019 10:38 PM
> To: r-390 at mailman.qth.net
> Subject: Re: [R-390] New R390
>
> On 5/22/2019 9:23 PM, William J. Neill via R-390 wrote:
> > And I wonder where the R-389 and R-725 stand in this pecking order?
>
> The R-389 is like the bass singer in a quartet.
>
> 73, Bob W9RAN
>
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 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: 5
> Date: Thu, 23 May 2019 05:58:30 +0000 (UTC)
> From: Perry Sandeen <sandeenpa at yahoo.com>
> To: r-390 at mailman.qth.net
> Subject: Re: [R-390] misc posts
> Message-ID: <1497139616.3871332.1558591110957 at mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
>
> Yo Bubba Dudes!,
> The mounting screws are 10-32 for the R39X and SP 600.? Others are either
> 8-32 or 6-32.? IIRC the tube socket screws are 4-40 are are those in the SP
> 600. I buy them in SS from McMaster-Carr by boxes of 100.? They have every
> type of screw head one wants. SS is very little more than plated steel.?
> They look great and won't every fade or rust.
> Wanting a R 389.? I wanted one years ago but i didn't have enough
> grandchildren to sell.? I also realized that using, maintaining and
> repairing it was far moe work than I ever wanted to get into.
> The R725.? If it's a ladies radio get me a dress and some lipstick. (As I
> live in CA no one would bat an eye - even if I grew a beard with my new
> outfit.?? It doesn't have the ringing of the mechanical filters.? If you
> can score a Non-A IF [a difficult feat in of itself] Tom Marcotte (sp)
> wrote a step by step article to be able to add it to your *A* that's in the
> Y2KR3 manual.? Or if one comes up for sale on ebay, pay the price -you can
> cry about it later- and enjoy.
>
> But if you want to be a real Caveman man and suffer the OEM crappy audio -
> go for it. We don't discriminate against masochists on the list.
> The R390 Non A
> Wrote:
> "TheR-390 is a man?s radio, the R-390A is a boys radio." I'd love to hear
> moreabout why that is...? I wanna be aman!? LOL
>
>
> Well, first you have to find one to buy. Then see if your credit card can
> take the hit.
>
> Then, You'll have the heat to deal with. There is an expensive to
> maintain, complicated regulated PS.? Less commonly used IF tubes which are
> in a series circuit, large leaking oil caps, almost impossible to find
> spare parts for starters......so go for it Bubba.? It'll keep you out of
> gin mills in the winter time.
>
>
>  But there is the nice sounding LC IF and the potential for a good audio
> and other upgrades. Also the issue of getting nice clean large ski's...
>
>
> So put on you're Fred Flintstone outfit grab a club and charge!
>
>
> Of course as our most respected senior: senior member Les Locklear would
> add: YMMV
>
>
> Regards,
> Perrier
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> ------------------------------
>
> _______________________________________________
> R-390 mailing list
> R-390 at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/r-390
>
>
> End of R-390 Digest, Vol 181, Issue 26
> **************************************
>

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