HW-16 Re: Latest Elecraft NEWS
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HW-16 Re: Latest Elecraft NEWS
 
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Hopefully not to belabor this too much (or exceed a cutoff on the conversation), the HW-16 was not a transceiver in the modern sense of shared circuitry throughout, but was a transmitter and receiver in the same cabinet that shared the same antenna connection and had the necessary cutoff and receiver protections on transmitting. The knob and dial you see is the receiver. The transmitter in the radio was CW-only, rock-bound on 80-40-15 meters only when barefoot with just the HW-16. It took the external HG-10 or -10B VFO (or similar grid-keyed VFO) to get you flexible transmitting not involving crystals. The receiver circuitry was on a circuit board in one half of the case and the transmitter circuitry was point-to-point wiring in the other half of the cabinet.
A used HW-16, joined later by a HG-10B VFO, was my first radio when I got licensed in 1993 and used for a couple of years until it got upscaled by a used Ten-Tec Century 22. Cheers/73, Kevin, K9IUA (then KB9IUA from 1993 until 1999) --------------------------------------- Kevin Anderson, Dubuque IA USA, K9IUA k9iua (at) yahoo (dot) 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: HW-16 Re: Latest Elecraft NEWS
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The first of that type was, I believe a Hallicrafters SR-75, which was quite
unique for its day. If I remember correctly, it was basically an S-38 receiver that used the audio output tube as a single stage crystal oscillator & RF out function. Not what you'd call a stellar performer, but it was a first and self-contained in a package which was same size as the S-38. 73, Charlie k3ICH -----Original Message----- From: [hidden email] <[hidden email]> On Behalf Of Kevin Anderson via Elecraft Sent: Saturday, January 26, 2019 9:13 AM To: [hidden email] Subject: [Elecraft] HW-16 Re: Latest Elecraft NEWS Hopefully not to belabor this too much (or exceed a cutoff on the conversation), the HW-16 was not a transceiver in the modern sense of shared circuitry throughout, but was a transmitter and receiver in the same cabinet that shared the same antenna connection and had the necessary cutoff and receiver protections on transmitting. The knob and dial you see is the receiver. The transmitter in the radio was CW-only, rock-bound on 80-40-15 meters only when barefoot with just the HW-16. It took the external HG-10 or -10B VFO (or similar grid-keyed VFO) to get you flexible transmitting not involving crystals. The receiver circuitry was on a circuit board in one half of the case and the transmitter circuitry was point-to-point wiring in the other half of the cabinet. A used HW-16, joined later by a HG-10B VFO, was my first radio when I got licensed in 1993 and used for a couple of years until it got upscaled by a used Ten-Tec Century 22. Cheers/73, Kevin, K9IUA (then KB9IUA from 1993 until 1999) --------------------------------------- Kevin Anderson, Dubuque IA USA, K9IUA k9iua (at) yahoo (dot) 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] ______________________________________________________________ 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: HW-16 Re: Latest Elecraft NEWS
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Took a look at Heath's HW-16 design. Quite ingenious: Using the PA
cathode bypass capacitors and current through a diode to shunt the receiver front end during transmit. Early diode QSK operation. And a neon bulb relaxation oscillator, using grid block keying voltage, for CW sidetone. I enjoy putting vintage stuff on the air for SKN. Heath did not integrating their separates well back in the day, relying on 110V antenna relays. I may have some DX-60A/HG-10B/HR-1680/HS-1681 ideas for next year! John KN5L ______________________________________________________________ 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: HW-16 Re: Latest Elecraft NEWS
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Speaking of 110VAC antenna relays, I reached in the back of my Novice
rig and touched the bare 110VAC contacts on the antenna relay. Youch! I was a little more cautious after that. Bare contacts wouldn't be allowed today in commercial gear. 73, -John NI0K > John Oppenheimer <mailto:[hidden email]> > Saturday, January 26, 2019 4:03 PM > Took a look at Heath's HW-16 design. Quite ingenious: Using the PA > cathode bypass capacitors and current through a diode to shunt the > receiver front end during transmit. Early diode QSK operation. And a > neon bulb relaxation oscillator, using grid block keying voltage, for CW > sidetone. > > I enjoy putting vintage stuff on the air for SKN. Heath did not > integrating their separates well back in the day, relying on 110V > antenna relays. I may have some DX-60A/HG-10B/HR-1680/HS-1681 ideas for > next year! > > John KN5L > ______________________________________________________________ > 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] > Charlie T <mailto:[hidden email]> > Saturday, January 26, 2019 12:53 PM > The first of that type was, I believe a Hallicrafters SR-75, which was > quite > unique for its day. > > If I remember correctly, it was basically an S-38 receiver that used the > audio output tube as a single stage crystal oscillator & RF out function. > Not what you'd call a stellar performer, but it was a first and > self-contained in a package which was same size as the S-38. > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: [hidden email] > <[hidden email]> On > Behalf Of Kevin Anderson via Elecraft > Sent: Saturday, January 26, 2019 9:13 AM > To: [hidden email] > Subject: [Elecraft] HW-16 Re: Latest Elecraft NEWS > > Hopefully not to belabor this too much (or exceed a cutoff on the > conversation), the HW-16 was not a transceiver in the modern sense of > shared > circuitry throughout, but was a transmitter and receiver in the same > cabinet > that shared the same antenna connection and had the necessary cutoff and > receiver protections on transmitting. The knob and dial you see is the > receiver. The transmitter in the radio was CW-only, rock-bound on 80-40-15 > meters only when barefoot with just the HW-16. It took the external HG-10 > or -10B VFO (or similar grid-keyed VFO) to get you flexible > transmitting not > involving crystals. The receiver circuitry was on a circuit board in one > half of the case and the transmitter circuitry was point-to-point > wiring in > the other half of the cabinet. > > A used HW-16, joined later by a HG-10B VFO, was my first radio when I got > licensed in 1993 and used for a couple of years until it got upscaled by a > used Ten-Tec Century 22. > > Cheers/73, > Kevin, K9IUA (then KB9IUA from 1993 until 1999) > > --------------------------------------- > Kevin Anderson, Dubuque IA USA, K9IUA > k9iua (at) yahoo (dot) 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] > > ______________________________________________________________ > 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] > Kevin Anderson via Elecraft <mailto:[hidden email]> > Saturday, January 26, 2019 8:12 AM > Hopefully not to belabor this too much (or exceed a cutoff on the > conversation), the HW-16 was not a transceiver in the modern sense of > shared circuitry throughout, but was a transmitter and receiver in the > same cabinet that shared the same antenna connection and had the > necessary cutoff and receiver protections on transmitting. The knob > and dial you see is the receiver. The transmitter in the radio was > CW-only, rock-bound on 80-40-15 meters only when barefoot with just > the HW-16. It took the external HG-10 or -10B VFO (or similar > grid-keyed VFO) to get you flexible transmitting not involving > crystals. The receiver circuitry was on a circuit board in one half of > the case and the transmitter circuitry was point-to-point wiring in > the other half of the cabinet. > > A used HW-16, joined later by a HG-10B VFO, was my first radio when I > got licensed in 1993 and used for a couple of years until it got > upscaled by a used Ten-Tec Century 22. > > Cheers/73, > Kevin, K9IUA (then KB9IUA from 1993 until 1999) > > --------------------------------------- > Kevin Anderson, Dubuque IA USA, K9IUA > k9iua (at) yahoo (dot) 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] ______________________________________________________________ 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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The S-38, like many BC receivers at the time, was an "AC/DC" rig, with
the chassis potentially hot if you weren't careful. Nearly eliminated myself in the basement trying to attach a Q-multiplier to it. This was better than 60 years ago. George, W3HBM On 1/26/2019 7:38 PM, John Simmons wrote: > Speaking of 110VAC antenna relays, I reached in the back of my Novice > rig and touched the bare 110VAC contacts on the antenna relay. Youch! I > was a little more cautious after that. Bare contacts wouldn't be allowed > today in commercial gear. > > 73, > -John NI0K > >> John Oppenheimer <mailto:[hidden email]> >> Saturday, January 26, 2019 4:03 PM >> Took a look at Heath's HW-16 design. Quite ingenious: Using the PA >> cathode bypass capacitors and current through a diode to shunt the >> receiver front end during transmit. Early diode QSK operation. And a >> neon bulb relaxation oscillator, using grid block keying voltage, for CW >> sidetone. >> >> I enjoy putting vintage stuff on the air for SKN. Heath did not >> integrating their separates well back in the day, relying on 110V >> antenna relays. I may have some DX-60A/HG-10B/HR-1680/HS-1681 ideas for >> next year! >> >> John KN5L >> ______________________________________________________________ >> 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] >> Charlie T <mailto:[hidden email]> >> Saturday, January 26, 2019 12:53 PM >> The first of that type was, I believe a Hallicrafters SR-75, which was >> quite >> unique for its day. >> >> If I remember correctly, it was basically an S-38 receiver that used the >> audio output tube as a single stage crystal oscillator & RF out function. >> Not what you'd call a stellar performer, but it was a first and >> self-contained in a package which was same size as the S-38. >> >> 73, Charlie k3ICH >> >> >> >> >> -----Original Message----- >> From: [hidden email] >> <[hidden email]> On >> Behalf Of Kevin Anderson via Elecraft >> Sent: Saturday, January 26, 2019 9:13 AM >> To: [hidden email] >> Subject: [Elecraft] HW-16 Re: Latest Elecraft NEWS >> >> Hopefully not to belabor this too much (or exceed a cutoff on the >> conversation), the HW-16 was not a transceiver in the modern sense of >> shared >> circuitry throughout, but was a transmitter and receiver in the same >> cabinet >> that shared the same antenna connection and had the necessary cutoff and >> receiver protections on transmitting. The knob and dial you see is the >> receiver. The transmitter in the radio was CW-only, rock-bound on >> 80-40-15 >> meters only when barefoot with just the HW-16. It took the external HG-10 >> or -10B VFO (or similar grid-keyed VFO) to get you flexible >> transmitting not >> involving crystals. The receiver circuitry was on a circuit board in one >> half of the case and the transmitter circuitry was point-to-point >> wiring in >> the other half of the cabinet. >> >> A used HW-16, joined later by a HG-10B VFO, was my first radio when I got >> licensed in 1993 and used for a couple of years until it got upscaled >> by a >> used Ten-Tec Century 22. >> >> Cheers/73, >> Kevin, K9IUA (then KB9IUA from 1993 until 1999) >> >> --------------------------------------- >> Kevin Anderson, Dubuque IA USA, K9IUA >> k9iua (at) yahoo (dot) 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] >> >> ______________________________________________________________ >> 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] >> Kevin Anderson via Elecraft <mailto:[hidden email]> >> Saturday, January 26, 2019 8:12 AM >> Hopefully not to belabor this too much (or exceed a cutoff on the >> conversation), the HW-16 was not a transceiver in the modern sense of >> shared circuitry throughout, but was a transmitter and receiver in the >> same cabinet that shared the same antenna connection and had the >> necessary cutoff and receiver protections on transmitting. The knob >> and dial you see is the receiver. The transmitter in the radio was >> CW-only, rock-bound on 80-40-15 meters only when barefoot with just >> the HW-16. It took the external HG-10 or -10B VFO (or similar >> grid-keyed VFO) to get you flexible transmitting not involving >> crystals. The receiver circuitry was on a circuit board in one half of >> the case and the transmitter circuitry was point-to-point wiring in >> the other half of the cabinet. >> >> A used HW-16, joined later by a HG-10B VFO, was my first radio when I >> got licensed in 1993 and used for a couple of years until it got >> upscaled by a used Ten-Tec Century 22. >> >> Cheers/73, >> Kevin, K9IUA (then KB9IUA from 1993 until 1999) >> >> --------------------------------------- >> Kevin Anderson, Dubuque IA USA, K9IUA >> k9iua (at) yahoo (dot) 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] > > > ______________________________________________________________ > 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] |
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In reply to this post by Elecraft mailing list
Back in those days, Novice class licenses were required to operate with
crystal control. You learned to tune at least 10 kc/s (kHz came later) each side of your frequency after calling CQ. Novice segments were on 80/40 and 15m CW only. 2m AM and CW was also allowed. Rigs in those days did not have the calibration and stability to allow Novices to use VFO's. Even upper class licensees needed a secondary standard to check their frequency (e.g. a 100 kHz crystal controlled marker.) Nothing like the rigs today where we trust the dial to be very accurate. Ken WA8JXM On 1/26/19 9:12 AM, Kevin Anderson via Elecraft wrote: > The transmitter in the radio was CW-only, rock-bound on 80-40-15 meters only when barefoot with just the HW-16. It took the external HG-10 or -10B VFO (or similar grid-keyed VFO) to get you flexible transmitting not involving crystals. ______________________________________________________________ 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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In reply to this post by John Simmons
You learned to know your rig and when to be careful. As a teenager, I
had a 2700 volt open breadboard power supply. Ken WA8JXM On 1/26/19 7:38 PM, John Simmons wrote: > Speaking of 110VAC antenna relays, I reached in the back of my Novice > rig and touched the bare 110VAC contacts on the antenna relay. Youch! > I was a little more cautious after that. Bare contacts wouldn't be > allowed today in commercial gear. ______________________________________________________________ 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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