[Boatanchors] TCS Tx & Rx
Drew P.
drewrailleur807 at yahoo.com
Sun Mar 25 12:05:33 EDT 2012
At 12:48 PM 3/24/2012, J. Forster wrote:
>I'm no CW op but I'd expect the diode would lengthen the relay release
>time, maybe quite a lot.
...to which Perry responded...
"Yes, John: It does lengthen the release due to the back EMF keeping
the coil energized
But it is not a real problem. Probably not more than 100 ms. Since
the relays are not
good for much over 25 wpm anyway, even using a bug is OK"
A resistor can be connected in series with the diode to allow some inductive spike and a shorter release time than that with just the diode. A good compromise seems to be a resistor value about three times the relay's coil resistance.
If you don't mind a little more power consumption, the diode can be omitted, leaving just the resistor and the function will be the same.
Drew
Perry w8au
--- On Sun, 3/25/12, boatanchors-request at mailman.qth.net <boatanchors-request at mailman.qth.net> wrote:
> From: boatanchors-request at mailman.qth.net <boatanchors-request at mailman.qth.net>
> Subject: Boatanchors Digest, Vol 98, Issue 33
> To: boatanchors at mailman.qth.net
> Date: Sunday, March 25, 2012, 5:54 AM
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> Today's Topics:
>
> 1. Re: TCS Tx & Rx (Sandy)
> 2. Re: TCS Tx & Rx (J. Forster)
> 3. Re: TCS Tx & Rx (w8au at sssnet.com)
> 4. Re: TCS Tx & Rx (Geoff)
> 5. Re: TCS Tx & Rx (Bry Carling)
> 6. Re: TCS Tx & Rx (Geoff)
> 7. Re: FS: RCA BTA1R1 AM Broadcast
> Transmitter (Sheldon Daitch)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 24 Mar 2012 11:36:42 -0500
> From: "Sandy" <ebjr37 at charter.net>
> Subject: Re: [Boatanchors] TCS Tx & Rx
> To: <whitebear1122 at comcast.net>,
> <boatanchors at mailman.qth.net>
> Message-ID:
> <78E06D74EBAE44948CFB2DBA4E3DD588 at SandysLaptop>
> Content-Type: text/plain; format=flowed; charset="UTF-8";
> reply-type=original
>
> The TCS transmitter keying relays are a noisy banging.
> You get used to it
> after a while though! DON'T get across the key when
> sending as you will get
> a hell of a belt from the "inductive emf" spike coming from
> the relay coil!
> It is easy to eliminate with a silicon diode (1N4005,
> 1N4007) across the
> relay coil. Hook it up so the diode won't conduct with
> the key up. It will
> kill the inductive kick the coil delivers.
>
> TCS was designed by Collins. Maybe that's one reason
> why they lasted so
> long?
>
> I have been wanting to get a matching receiver and add a
> simple "Q
> Multiplier" to narrow selectivity on CW. Never got
> around to it!
>
> 73,
> Sandy W5TVW
>
> -----Original Message-----
> From: whitebear1122 at comcast.net
> Sent: Saturday, March 24, 2012 8:34 AM
> To: boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] TCS Tx & Rx
>
>
>
> I've only seen a pair of TCS in person once. They were
> the emergency radios
> in the Auxiliary Radio room aboard the USS Duluth LPD-6 as
> recent as 1973.
> That's a loooong time of service isn't it! They were
> set up and ready to
> provide emergency communications when all else failed.
> It was quite an
> honor I would think because while the main radio room and
> transmitter room
> was jammed full of high power modern transmitters and
> receivers, here in the
> Auxiliary Radio room was an old TCS pair, all set up, ready
> to go. The only
> reason I knew about them was that I had assigned radio
> maintenance duty in
> Aux Radio, otherwise only a few the RM-1's and Chiefs knew
> about it. I
> don't remember ever turning them on so I must have had to
> maintain something
> else in that room like changing batteries in the battle
> lanterns.
>
>
>
> It would be intriguing to own a TCS set up just for the
> sheer pleasure of
> operating it as the OT's operated it. I have an
> unmolested BC-348 with
> dynamotor and mount sitting on the backroom shelf awaiting
> restoration.
> While I"m not expecting Yae commwood performance, I am
> expecting to work
> pretty good, look a whole lot better and be alot more
> fun to operate and
> use than a Yaecommwood. I listened on one back
> in the late 60's at a
> friends Novice station. The 348 sounded fine, tuned
> smooth, can't wait to
> hear it again.
>
>
>
> 73, Scott WA9WFA
> ______________________________________________________________
> 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
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> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2012.0.1913 / Virus Database: 2114/4890 - Release
> Date: 03/23/12
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 24 Mar 2012 09:48:37 -0700 (PDT)
> From: "J. Forster" <jfor at quikus.com>
> Subject: Re: [Boatanchors] TCS Tx & Rx
> To: "Sandy" <ebjr37 at charter.net>
> Cc: boatanchors at mailman.qth.net
> Message-ID:
> <1384.12.6.201.129.1332607717.squirrel at popaccts.quikus.com>
> Content-Type: text/plain;charset=iso-8859-1
>
> I'm no CW op but I'd expect the diode would lengthen the
> relay release
> time, maybe quite a lot.
>
> -John
>
> ==============
>
>
>
> > The TCS transmitter keying relays are a noisy
> banging. You get used to it
> > after a while though! DON'T get across the key
> when sending as you will
> > get
> > a hell of a belt from the "inductive emf" spike coming
> from the relay
> > coil!
> > It is easy to eliminate with a silicon diode (1N4005,
> 1N4007) across the
> > relay coil. Hook it up so the diode won't conduct
> with the key up. It
> > will
> > kill the inductive kick the coil delivers.
> >
> > TCS was designed by Collins. Maybe that's one
> reason why they lasted so
> > long?
> >
> > I have been wanting to get a matching receiver and add
> a simple "Q
> > Multiplier" to narrow selectivity on CW. Never
> got around to it!
> >
> > 73,
> > Sandy W5TVW
> >
> > -----Original Message-----
> > From: whitebear1122 at comcast.net
> > Sent: Saturday, March 24, 2012 8:34 AM
> > To: boatanchors at mailman.qth.net
> > Subject: Re: [Boatanchors] TCS Tx & Rx
> >
> >
> >
> > I've only seen a pair of TCS in person once. They
> were the emergency
> > radios
> > in the Auxiliary Radio room aboard the USS Duluth LPD-6
> as recent as 1973.
> > That's a loooong time of service isn't it! They
> were set up and ready to
> > provide emergency communications when all else
> failed. It was quite an
> > honor I would think because while the main radio room
> and transmitter room
> > was jammed full of high power modern transmitters and
> receivers, here in
> > the
> > Auxiliary Radio room was an old TCS pair, all set up,
> ready to go. The
> > only
> > reason I knew about them was that I had assigned radio
> maintenance duty in
> > Aux Radio, otherwise only a few the RM-1's and Chiefs
> knew about it. I
> > don't remember ever turning them on so I must have had
> to maintain
> > something
> > else in that room like changing batteries in the battle
> lanterns.
> >
> >
> >
> > It would be intriguing to own a TCS set up just for the
> sheer pleasure of
> > operating it as the OT's operated it. I have an
> unmolested BC-348 with
> > dynamotor and mount sitting on the backroom shelf
> awaiting restoration.
> > While I"m not expecting Yae commwood performance, I am
> expecting to work
> > pretty good, look a whole lot better and be alot
> more fun to operate and
> > use than a Yaecommwood. I listened on one
> back in the late 60's at a
> > friends Novice station. The 348 sounded fine,
> tuned smooth, can't wait to
> > hear it again.
> >
> >
> >
> > 73, Scott WA9WFA
> >
> ______________________________________________________________
> > 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
> >
> > -----
> > No virus found in this message.
> > Checked by AVG - www.avg.com
> > Version: 2012.0.1913 / Virus Database: 2114/4890 -
> Release Date: 03/23/12
> >
> >
> ______________________________________________________________
> > 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
> >
> >
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sat, 24 Mar 2012 15:05:25 -0400
> From: w8au at sssnet.com
> Subject: Re: [Boatanchors] TCS Tx & Rx
> To: boatanchors at mailman.qth.net
> Message-ID: <20120324190529.12BEB8078208 at mailman.qth.net>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> At 12:48 PM 3/24/2012, J. Forster wrote:
> >I'm no CW op but I'd expect the diode would lengthen the
> relay release
> >time, maybe quite a lot.
>
> Yes, John: It does lengthen the release due
> to the back EMF keeping
> the coil energized
> But it is not a real problem. Probably not more than
> 100 ms. Since
> the relays are not
> good for much over 25 wpm anyway, even using a bug is
> OK
>
> Perry w8au
>
>
>
> ------------------------------
>
> Message: 4
> Date: Sat, 24 Mar 2012 16:14:18 -0400
> From: "Geoff" <geoffrey at jeremy.mv.com>
> Subject: Re: [Boatanchors] TCS Tx & Rx
> To: <boatanchors at mailman.qth.net>,
> <w8au at sssnet.com>
> Message-ID:
> <E26AD07C49B04EB9B5D344BBEE292293 at computer1>
> Content-Type: text/plain; format=flowed;
> charset="iso-8859-1";
> reply-type=original
>
> The ART-13 relay is louder and slower and I cant operate CW
> that slow. It is
> a great AM TX however and at 100-120W out it can usually be
> heard on a busy
> ham band unlike a flea power rig.
>
> Of course flea power is ofen used in conjunction with flea
> sized antennas
> making actual QSO's a challenge.
>
> The TCS TX is just the right power on AM to be used with a
> linear amp for a
> 100-300W carrier signal. A R-388, AR-88, RBG, and others
> would make a fine
> companion RX in that case
>
> Carl
> KM1H
>
>
>
> ----- Original Message -----
> From: <w8au at sssnet.com>
> To: <boatanchors at mailman.qth.net>
> Sent: Saturday, March 24, 2012 3:05 PM
> Subject: Re: [Boatanchors] TCS Tx & Rx
>
>
> > At 12:48 PM 3/24/2012, J. Forster wrote:
> >>I'm no CW op but I'd expect the diode would lengthen
> the relay release
> >>time, maybe quite a lot.
> >
> > Yes, John: It does lengthen the
> release due to the back EMF keeping
> > the coil energized
> > But it is not a real problem. Probably not more
> than 100 ms. Since
> > the relays are not
> > good for much over 25 wpm anyway, even using a
> bug is OK
> >
> > Perry w8au
> >
> >
> ______________________________________________________________
> > 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
> >
> >
> > -----
> > No virus found in this message.
> > Checked by AVG - www.avg.com
> > Version: 10.0.1424 / Virus Database: 2113/4891 -
> Release Date: 03/24/12
> >
>
>
>
> ------------------------------
>
> Message: 5
> Date: Sat, 24 Mar 2012 16:39:00 -0400
> From: Bry Carling <bcarling at cfl.rr.com>
> Subject: Re: [Boatanchors] TCS Tx & Rx
> To: Geoff <geoffrey at jeremy.mv.com>,
> boatanchors at mailman.qth.net,
> w8au at sssnet.com
> Message-ID: <4ad9cabc-ed99-4c5b-bddd-7c96424f3a21 at email.android.com>
> Content-Type: text/plain; charset=UTF-8
>
> My ART13 was wonderful on CW at any speed with simple grid
> block keying. Great rig...
>
> --
> Sent from my android "relatively smart" phone. Please excuse
> my brevity.
>
> _____________________________________________
> From: Geoff <geoffrey at jeremy.mv.com>
> Sent: Sat Mar 24 16:14:18 EDT 2012
> To: boatanchors at mailman.qth.net,
> w8au at sssnet.com
> Subject: Re: [Boatanchors] TCS Tx & Rx
>
>
> The ART-13 relay is louder and slower and I cant operate CW
> that slow. It is
> a great AM TX however and at 100-120W out it can usually be
> heard on a busy
> ham band unlike a flea power rig.
>
> Of course flea power is ofen used in conjunction with flea
> sized antennas
> making actual QSO's a challenge.
>
> The TCS TX is just the right power on AM to be used with a
> linear amp for a
> 100-300W carrier signal. A R-388, AR-88, RBG, and others
> would make a fine
> companion RX in that case
>
> Carl
> KM1H
>
>
>
> ----- Original Message -----
> From: <w8au at sssnet.com>
> To: <boatanchors at mailman.qth.net>
> Sent: Saturday, March 24, 2012 3:05 PM
> Subject: Re: [Boatanchors] TCS Tx & Rx
>
>
> > At 12:48 PM 3/24/2012, J. Forster wrote:
> >>I'm no CW op but I'd expect the diode would lengthen
> the relay release
> >>time, maybe quite a lot.
> >
> > Yes, John: It does lengthen the release due to the back
> EMF keeping
> > the coil energized
> > But it is not a real problem. Probably not more than
> 100 ms. Since
> > the relays are not
> > good for much over 25 wpm anyway, even using a bug is
> OK
> >
> > Perry w8au
> >
> >_____________________________________________
>
> > 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
> >
> >
> > -----
> > No virus found in this message.
> > Checked by AVG - www.avg.com
> > Version: 10.0.1424 / Virus Database: 2113/4891 -
> Release Date: 03/24/12
> >
>
> _____________________________________________
>
> 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
>
>
> ------------------------------
>
> Message: 6
> Date: Sat, 24 Mar 2012 20:32:28 -0400
> From: "Geoff" <geoffrey at jeremy.mv.com>
> Subject: Re: [Boatanchors] TCS Tx & Rx
> To: "Bry Carling" <bcarling at cfl.rr.com>,
> <boatanchors at mailman.qth.net>,
> <w8au at sssnet.com>
> Message-ID:
> <FC3A592BCF534D2FB5F1B85F646B1949 at computer1>
> Content-Type: text/plain; format=flowed;
> charset="iso-8859-1";
> reply-type=original
>
> I agree but since I have several great CW rigs I didnt care
> to modify the
> ART-13 (actually an ATC which very few recognize).
>
> Its also tricky to get great sounding AM and click free CW
> out of a final
> thats biased into deep Class C. That TCS I used aboard ship
> could be heard
> on ship frequencies so I had to observe silent "hours" which
> was just a call
> on the intercom to cool it for 10-20 minutes.
>
> OTH the big old TBM at 500W out with TX and RX antennas in
> parallel about
> 75' apart ran full QSK.with just a small frequency
> difference. Wish I had
> the room here for one and its MG set.
>
> Carl
> KM1H
>
>
>
>
> ----- Original Message -----
> From: "Bry Carling" <bcarling at cfl.rr.com>
> To: "Geoff" <geoffrey at jeremy.mv.com>;
> <boatanchors at mailman.qth.net>;
>
> <w8au at sssnet.com>
> Sent: Saturday, March 24, 2012 4:39 PM
> Subject: Re: [Boatanchors] TCS Tx & Rx
>
>
> > My ART13 was wonderful on CW at any speed with simple
> grid block keying.
> > Great rig...
> >
> > --
> > Sent from my android "relatively smart" phone. Please
> excuse my brevity.
> >
> > _____________________________________________
> > From: Geoff <geoffrey at jeremy.mv.com>
> > Sent: Sat Mar 24 16:14:18 EDT 2012
> > To: boatanchors at mailman.qth.net,
> w8au at sssnet.com
> > Subject: Re: [Boatanchors] TCS Tx & Rx
> >
> >
> > The ART-13 relay is louder and slower and I cant
> operate CW that slow. It
> > is
> > a great AM TX however and at 100-120W out it can
> usually be heard on a
> > busy
> > ham band unlike a flea power rig.
> >
> > Of course flea power is ofen used in conjunction with
> flea sized antennas
> > making actual QSO's a challenge.
> >
> > The TCS TX is just the right power on AM to be used
> with a linear amp for
> > a
> > 100-300W carrier signal. A R-388, AR-88, RBG, and
> others would make a fine
> > companion RX in that case
> >
> > Carl
> > KM1H
> >
> >
> >
> > ----- Original Message -----
> > From: <w8au at sssnet.com>
> > To: <boatanchors at mailman.qth.net>
> > Sent: Saturday, March 24, 2012 3:05 PM
> > Subject: Re: [Boatanchors] TCS Tx & Rx
> >
> >
> >> At 12:48 PM 3/24/2012, J. Forster wrote:
> >>>I'm no CW op but I'd expect the diode would
> lengthen the relay release
> >>>time, maybe quite a lot.
> >>
> >> Yes, John: It does lengthen the release due to the
> back EMF keeping
> >> the coil energized
> >> But it is not a real problem. Probably not more
> than 100 ms. Since
> >> the relays are not
> >> good for much over 25 wpm anyway, even using a bug
> is OK
> >>
> >> Perry w8au
> >>
> >>_____________________________________________
> >
> >> 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
> >>
> >>
> >> -----
> >> No virus found in this message.
> >> Checked by AVG - www.avg.com
> >> Version: 10.0.1424 / Virus Database: 2113/4891 -
> Release Date: 03/24/12
> >>
> >
> > _____________________________________________
> >
> > 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
> >
> ______________________________________________________________
> > 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
> >
> >
> > -----
> > No virus found in this message.
> > Checked by AVG - www.avg.com
> > Version: 10.0.1424 / Virus Database: 2113/4891 -
> Release Date: 03/24/12
> >
>
>
>
> ------------------------------
>
> Message: 7
> Date: Sun, 25 Mar 2012 12:54:39 +0300
> From: Sheldon Daitch <sdaitch at kuw.ibb.gov>
> Subject: Re: [Boatanchors] FS: RCA BTA1R1 AM Broadcast
> Transmitter
> To: LeeCraner at aol.com
> Cc: boatanchors at mailman.qth.net,
> amradio at mailman.qth.net,
> amswap at mailman.qth.net
> Message-ID: <4F6EEB5F.6060708 at kuw.ibb.gov>
> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed
>
> IF not, I speak Su'thn, and can possibly translate.
>
> Sheldn
>
> On 3/22/2012 10:28 PM, LeeCraner at aol.com
> wrote:
> >
> > In a message dated 3/22/2012 11:23:38 A.M. Pacific
> Daylight Time,
> > cosmophone at yahoo.com
> writes:
> >
> > It comes with a manual although the manual is in
> Arkansas
> >
> > Is there an English translation available?
> >
> > Lee WB6SSW
> >
> ______________________________________________________________
> > 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
>
>
> ------------------------------
>
> ______________________________________________________________
> Boatanchors mailing list
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> End of Boatanchors Digest, Vol 98, Issue 33
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