[K2] T-R Driver Circuit to key KXPA100
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[K2] T-R Driver Circuit to key KXPA100
 
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What kind of T-R keying circuit is necessary in the K2 (with K60XV installed for 60m band usage, no XVTRs connected) to operate the KXPA100 amplifier? a) Will the XVTR Keyline on K60XV J2-2 / Q3 (2N7000) do it correctly? b) Is a keying circuit like these necessary? http://folk.uio.no/sverre/LA3ZA/blog/K2/N0SS/k2_t-r_rly_drvr.pdf ftp://ftp.elecraft.com/K2/Mod%20Notes%20Alerts/K2%20Amplifier%20Keying%20Circuit.pdf 73 tks, Heinz HB9BCB -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: [K2] T-R Driver Circuit to key KXPA100
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Heinz,
If you have the K60XV option installed in the K2, yes K60XV J2 pin 2 will key an amplifier like the KXPA100. The only difficult part is to find a place for a connector on the rear panel. There is a place near the key jack where you can mount an RCA jack and not interfere with any components on the RF board - keep the jack as close to the top of the lower panel as possible. 73, Don W3FPR On 1/19/2019 2:23 PM, Heinz Baertschi wrote: > > What kind of T-R keying circuit is necessary in the K2 (with K60XV installed > for 60m band usage, no XVTRs connected) to operate the KXPA100 amplifier? > > a) Will the XVTR Keyline on K60XV J2-2 / Q3 (2N7000) do it correctly? > > b) Is a keying circuit like these necessary? > http://folk.uio.no/sverre/LA3ZA/blog/K2/N0SS/k2_t-r_rly_drvr.pdf > ftp://ftp.elecraft.com/K2/Mod%20Notes%20Alerts/K2%20Amplifier%20Keying%20Circuit.pdf > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: [K2] T-R Driver Circuit to key KXPA100
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Heinz,
This is exactly how Don wired my K2 to key an external amp. The RCA jack is mounted as Don describes. It works. What more is there to say? I forget what the voltage and current ratings are for the 2N7000, but as I remember it will key the majority of amplifiers. 73, Mark, WB9CIF -----Original Message----- From: [hidden email] <[hidden email]> On Behalf Of Don Wilhelm Sent: Saturday, January 19, 2019 19:44 To: Heinz Baertschi <[hidden email]>; [hidden email] Subject: Re: [Elecraft] [K2] T-R Driver Circuit to key KXPA100 Heinz, If you have the K60XV option installed in the K2, yes K60XV J2 pin 2 will key an amplifier like the KXPA100. The only difficult part is to find a place for a connector on the rear panel. There is a place near the key jack where you can mount an RCA jack and not interfere with any components on the RF board - keep the jack as close to the top of the lower panel as possible. 73, Don W3FPR On 1/19/2019 2:23 PM, Heinz Baertschi wrote: > > What kind of T-R keying circuit is necessary in the K2 (with K60XV installed > for 60m band usage, no XVTRs connected) to operate the KXPA100 amplifier? > > a) Will the XVTR Keyline on K60XV J2-2 / Q3 (2N7000) do it correctly? > > b) Is a keying circuit like these necessary? > http://folk.uio.no/sverre/LA3ZA/blog/K2/N0SS/k2_t-r_rly_drvr.pdf > ftp://ftp.elecraft.com/K2/Mod%20Notes%20Alerts/K2%20Amplifier%20Keying%20Circuit.pdf > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: [K2] T-R Driver Circuit to key KXPA100
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Mark Musick wrote
> Heinz, > This is exactly how Don wired my K2 to key an external amp. > The RCA jack is mounted as Don describes. > It works. What more is there to say? > I forget what the voltage and current ratings are for the 2N7000, but as I > remember it will key the majority of amplifiers. > > 73, > Mark, WB9CIF > > -----Original Message----- > From: > elecraft-bounces@.qth > < > elecraft-bounces@.qth > > On Behalf Of Don Wilhelm > Sent: Saturday, January 19, 2019 19:44 > To: Heinz Baertschi < > heinz.baertschi@ > >; > elecraft@.qth > Subject: Re: [Elecraft] [K2] T-R Driver Circuit to key KXPA100 > > Heinz, > > If you have the K60XV option installed in the K2, yes K60XV J2 pin 2 will > key an amplifier like the KXPA100. > The only difficult part is to find a place for a connector on the rear > panel. There is a place near the key jack where you can mount an RCA jack > and not interfere with any components on the RF board - keep the jack as > close to the top of the lower panel as possible. > > 73, > Don W3FPR > > On 1/19/2019 2:23 PM, Heinz Baertschi wrote: >> >> What kind of T-R keying circuit is necessary in the K2 (with K60XV >> installed >> for 60m band usage, no XVTRs connected) to operate the KXPA100 amplifier? >> >> a) Will the XVTR Keyline on K60XV J2-2 / Q3 (2N7000) do it correctly? >> >> b) Is a keying circuit like these necessary? >> http://folk.uio.no/sverre/LA3ZA/blog/K2/N0SS/k2_t-r_rly_drvr.pdf >> ftp://ftp.elecraft.com/K2/Mod%20Notes%20Alerts/K2%20Amplifier%20Keying%20Circuit.pdf >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > markmusick@ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > lists+1215531472858-365791@.nabble -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: [K2] T-R Driver Circuit to key KXPA100
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In reply to this post by Mark Musick
Mark Musick wrote
> Heinz, > This is exactly how Don wired my K2 to key an external amp. > The RCA jack is mounted as Don describes. > It works. What more is there to say? > I forget what the voltage and current ratings are for the 2N7000, but as I > remember it will key the majority of amplifiers. > > 73, > Mark, WB9CIF > > -----Original Message----- > From: > elecraft-bounces@.qth > < > elecraft-bounces@.qth > > On Behalf Of Don Wilhelm > Sent: Saturday, January 19, 2019 19:44 > To: Heinz Baertschi < > heinz.baertschi@ > >; > elecraft@.qth > Subject: Re: [Elecraft] [K2] T-R Driver Circuit to key KXPA100 > > Heinz, > > If you have the K60XV option installed in the K2, yes K60XV J2 pin 2 will > key an amplifier like the KXPA100. > The only difficult part is to find a place for a connector on the rear > panel. There is a place near the key jack where you can mount an RCA jack > and not interfere with any components on the RF board - keep the jack as > close to the top of the lower panel as possible. > > 73, > Don W3FPR > > On 1/19/2019 2:23 PM, Heinz Baertschi wrote: >> >> What kind of T-R keying circuit is necessary in the K2 (with K60XV >> installed >> for 60m band usage, no XVTRs connected) to operate the KXPA100 amplifier? >> >> a) Will the XVTR Keyline on K60XV J2-2 / Q3 (2N7000) do it correctly? >> >> b) Is a keying circuit like these necessary? >> http://folk.uio.no/sverre/LA3ZA/blog/K2/N0SS/k2_t-r_rly_drvr.pdf >> ftp://ftp.elecraft.com/K2/Mod%20Notes%20Alerts/K2%20Amplifier%20Keying%20Circuit.pdf >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > markmusick@ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > lists+1215531472858-365791@.nabble Don, Mark, That are good news, thanks. As I have no XVTRs connected to this K2 the 2 RCAs for XVTR IN and XVTR OUT are for free disposal, fortunately. So one of these 2 RCAs is already taken for the output from the Clifton Labs 10000 IF Buffer Amplifier (connected to a P3) and the other is well suited to be used for the PA KEY line. 73 tks, Heinz HB9BCB -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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