[TenTec] TenTec Digest, Vol 203, Issue 8

Ken Brown kenradiobrown at gmail.com
Sat Nov 9 13:37:49 EST 2019 

Are you saying it works with external VFO but not internal VFO?

I suggest you use a general coverage receiver to listen for the various
oscillators, VFO, BFO and band select oscillator and see if there is one
that you cannot hear. Maybe use a probe or small loop antenna to sniff for
the signals from the part of the radio where they are supposed to be
generated. I'm guessing one of them is either not working or the path from
the oscillator to mixer/detector is not intact. Have you tried all bands
and all modes? If it is a BFO problem it may work on some modes and not
others. Similarly if there is a problem with band select oscillator it may
work on some bands and not others.

DE N6KB


On Sat, Nov 9, 2019 at 8:13 AM Mark Hoffman <markahoffman at gmail.com> wrote:

> Thanks everyone for input.
> 1. I am using an external VFO - it is working fine
> 2. Checked Aux RX switch.  Checks out OK
> 3. The Corsair has lights, audio sound, AF and RF gain OK, CW keying and
> PTT ok, just no RF output or any receiving signals
> 4. No S meter movement at all, no indication of current or RF
>
> I took covers off and checked all connectors - it sat in a truck for 1800
> miles.  Did not see any visual issues at all.
>
> It acts like it is ok, just nothing on output or received signals.  Again,
> I double checked p/s - OK.
>
> Mark, W7GCY
>
>
> On Sat, Nov 9, 2019 at 11:00 AM <tentec-request at contesting.com> wrote:
>
> > Send TenTec mailing list submissions to
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> > than "Re: Contents of TenTec digest..."
> >
> >
> > Today's Topics:
> >
> >    1. Corsair transmit (Mark Hoffman)
> >    2. Re: Corsair transmit (Bob McGraw K4TAX)
> >    3. Re: Corsair transmit (GARY HUBER)
> >    4. Re: Corsair transmit (Ken Brown)
> >    5. The SCOUT Group is Moving (Rick at dj0ip.de)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Fri, 8 Nov 2019 21:22:24 -0600
> > From: Mark Hoffman <markahoffman at gmail.com>
> > To: tentec at contesting.com
> > Subject: [TenTec] Corsair transmit
> > Message-ID:
> >         <
> > CACzzWQfEFbinUZ+2VDAgB3OvUHmRoSGf4zwYPcuZieVg+u4H3Q at mail.gmail.com>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > After several months in storage and a move across country, I pulled my
> > Corsair out of its box and anxiously hooked it up - 238 tuner, Ten Tec
> > power supply, swr meter - all terminating into a trusted dummy load.
> Using
> > a receiver test oscillator, the receiver does not seem to be working
> > either, also zero output from transmitter.  I confirmed that the p/s is
> OK
> > by swapping out with a Astron p/s - same thing and measured voltages.
> > Before I dig into this trusted unit of 20+ years, are there some moderate
> > to simple things to check?
> > Thanks,
> > Mark
> > W7GCY
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Fri, 8 Nov 2019 21:27:57 -0600
> > From: Bob McGraw K4TAX <rmcgraw at blomand.net>
> > To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> > Subject: Re: [TenTec] Corsair transmit
> > Message-ID: <7B46BC11-EB7A-43EF-B736-6149EFC3F13C at blomand.net>
> > Content-Type: text/plain;       charset=us-ascii
> >
> > Is there a jumper for external VFO on the back?    I don't recall. Won't
> > work without it in place.
> >
> > Bob, K4TAX
> >
> >
> > Sent from my iPhone
> >
> > > On Nov 8, 2019, at 9:22 PM, Mark Hoffman <markahoffman at gmail.com>
> wrote:
> > >
> > > After several months in storage and a move across country, I pulled my
> > > Corsair out of its box and anxiously hooked it up - 238 tuner, Ten Tec
> > > power supply, swr meter - all terminating into a trusted dummy load.
> > Using
> > > a receiver test oscillator, the receiver does not seem to be working
> > > either, also zero output from transmitter.  I confirmed that the p/s is
> > OK
> > > by swapping out with a Astron p/s - same thing and measured voltages.
> > > Before I dig into this trusted unit of 20+ years, are there some
> moderate
> > > to simple things to check?
> > > Thanks,
> > > Mark
> > > W7GCY
> > > _______________________________________________
> > > TenTec mailing list
> > > TenTec at contesting.com
> > > http://lists.contesting.com/mailman/listinfo/tentec
> > >
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Sat, 9 Nov 2019 04:02:19 +0000
> > From: GARY HUBER <glhuber at msn.com>
> > To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> > Subject: Re: [TenTec] Corsair transmit
> > Message-ID:
> >         <
> >
> DM6PR08MB43796443D4A2ACC669404E21A67A0 at DM6PR08MB4379.namprd08.prod.outlook.com
> > >
> >
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > For RX issues, one thing to check is the slide switch for AUX RX - RX
> > ANT....sometimes corrosion sets in resulting in high resistance and NO
> > RX... Also if the switch is in the AUX ANT position with NO antenna on
> the
> > phono plug, there is NO antenna for receive and the radio appears dead
> even
> > tho you have an antenna connected to the SO-239.
> >
> > 73,
> > Gary - AB9M
> >
> > ________________________________
> > From: TenTec <tentec-bounces at contesting.com> on behalf of Mark Hoffman <
> > markahoffman at gmail.com>
> > Sent: Friday, November 8, 2019 9:22 PM
> > To: tentec at contesting.com <tentec at contesting.com>
> > Subject: [TenTec] Corsair transmit
> >
> > After several months in storage and a move across country, I pulled my
> > Corsair out of its box and anxiously hooked it up - 238 tuner, Ten Tec
> > power supply, swr meter - all terminating into a trusted dummy load.
> Using
> > a receiver test oscillator, the receiver does not seem to be working
> > either, also zero output from transmitter.  I confirmed that the p/s is
> OK
> > by swapping out with a Astron p/s - same thing and measured voltages.
> > Before I dig into this trusted unit of 20+ years, are there some moderate
> > to simple things to check?
> > Thanks,
> > Mark
> > W7GCY
> > _______________________________________________
> > TenTec mailing list
> > TenTec at contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Fri, 8 Nov 2019 20:42:11 -1000
> > From: Ken Brown <kenradiobrown at gmail.com>
> > To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> > Subject: Re: [TenTec] Corsair transmit
> > Message-ID:
> >         <CAGnjFf=
> > DwSAXsPStFxNsfLfV2UshMh9uT8hDk_H327LOHmjdMQ at mail.gmail.com>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > Lights on? Any sound at all from headphones or speaker when audio gain
> and
> > RF gain turned up? When PTT pushed or switched to transmit mode by VOX or
> > CW keying do any relays click? (I assume a Corsair normally has some T/R
> > relay noise, but maybe not.) Any S meter action or TX PA current meter
> > indication? Really could use some more detail about what does and does
> not
> > work before knowing where to look for fault(s).
> >
> > DE N6KB
> >
> > On Fri, Nov 8, 2019 at 6:02 PM GARY HUBER <glhuber at msn.com> wrote:
> >
> > > For RX issues, one thing to check is the slide switch for AUX RX - RX
> > > ANT....sometimes corrosion sets in resulting in high resistance and NO
> > > RX... Also if the switch is in the AUX ANT position with NO antenna on
> > the
> > > phono plug, there is NO antenna for receive and the radio appears dead
> > even
> > > tho you have an antenna connected to the SO-239.
> > >
> > > 73,
> > > Gary - AB9M
> > >
> > > ________________________________
> > > From: TenTec <tentec-bounces at contesting.com> on behalf of Mark
> Hoffman <
> > > markahoffman at gmail.com>
> > > Sent: Friday, November 8, 2019 9:22 PM
> > > To: tentec at contesting.com <tentec at contesting.com>
> > > Subject: [TenTec] Corsair transmit
> > >
> > > After several months in storage and a move across country, I pulled my
> > > Corsair out of its box and anxiously hooked it up - 238 tuner, Ten Tec
> > > power supply, swr meter - all terminating into a trusted dummy load.
> > Using
> > > a receiver test oscillator, the receiver does not seem to be working
> > > either, also zero output from transmitter.  I confirmed that the p/s is
> > OK
> > > by swapping out with a Astron p/s - same thing and measured voltages.
> > > Before I dig into this trusted unit of 20+ years, are there some
> moderate
> > > to simple things to check?
> > > Thanks,
> > > Mark
> > > W7GCY
> > > _______________________________________________
> > > TenTec mailing list
> > > TenTec at contesting.com
> > > http://lists.contesting.com/mailman/listinfo/tentec
> > > _______________________________________________
> > > TenTec mailing list
> > > TenTec at contesting.com
> > > http://lists.contesting.com/mailman/listinfo/tentec
> > >
> >
> >
> > ------------------------------
> >
> > Message: 5
> > Date: Sat, 9 Nov 2019 09:23:10 +0100
> > From: <Rick at dj0ip.de>
> > To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
> > Subject: [TenTec] The SCOUT Group is Moving
> > Message-ID: <014101d596d6$ed505410$c7f0fc30$@dj0ip.de>
> > Content-Type: text/plain;       charset="us-ascii"
> >
> > Due to changes in Yahoo's Groups policy, we have decided to move the
> Scout
> > group to groups.io.
> > It will be in good company there, as the Eagle, Argonaut6, Jupiter, &
> OMNI
> > VII groups have also relocated there.
> >
> > Yahoo is deleting all old group content (e.g., Files, Photos, and All old
> > Messages) on 14 December.
> >
> > I am posting this message here because members of the Scout Group who
> chose
> > to read messages on the bulletin board rather than receive emails, may
> not
> > find out in time.  Perhaps the are members here to.
> >
> > Groups.io no longer migrates Yahoo groups for free.
> > They are charging $220 for this service.
> > We have not decided whether or not to pay for the service for moving the
> > Scout group.
> >
> > I have already manually moved all of the files in the files folder and am
> > in
> > process of moving all of the photos.
> > I will not be able to move the old messages.
> >
> > The new (old) Scout group is located here:
> > https://groups.io/g/tentec-scout
> >
> >
> > 73,
> > Rick, DJ0IP
> > (Nr. Frankfurt, Germany)
> > May the Sunspots be with us!
> >
> >
> >
> >
> > ------------------------------
> >
> > Subject: Digest Footer
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec at contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
> >
> > ------------------------------
> >
> > End of TenTec Digest, Vol 203, Issue 8
> > **************************************
> >
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