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OHR Sprint I instructions
KN6KR
Good afternoon. I am glad to be admitted into this group. I have been trying to find instructions for the Oak Hills Research Sprint 1 30 meters QRP rig (from around 1992 or 1993). I built it in high school and now it does not seem to function. Does anyone by any chance have the instructions in pdf format? I was able to get a pdf copy of the Sprint II instructions but it is my understanding that the Spring I and Sprint II use different transmitters. I tried to reach out to the successor to OHR, Milestone Tech, but I don’t believe that company is active any more. Thank you, Charles, KN6kR
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Re: Confirming account
KN6KR
John Thank you very much for admitting me into the group. I am very intrigued by the Sprint; I will try it once I get a qrp transceiver up and running. Thanks and 73 Charles KN6KR
On Mon, May 25, 2020 at 11:22 AM John Lonigro <jonigro@...> wrote:
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Re: Confirming account
John Lonigro
Charles:
toggle quoted messageShow quoted text
I just looked up your call on the 4SQRP member list and I see you are there, which means you are officially a member of 4SQRP. Your member number can be found by hovering over your call on the member list. I already did that and your number is 2218. I would tell you the club's secret handshake, but I don't think we have one (hi). But I will tell you to try the Second Sunday Sprint, which is on the 2nd Sunday of each month, from 7:00pm to 9:00 pm central time (either CST or CDT, whichever is in effect at the time). Full rules can be found on the 4SQRP website, under "on air activities". The June SSS won't be until June 14th. 72 and welcome to the club, John, AA0VE 4SQRP Contest Coordinator
On 5/25/20 8:00 AM, KN6KR wrote:
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Re: Confirming account
Gm Charles Looks like your in! Welcome to the 4 SQRP group. 72 Stay Safe. Johnny ACØBQ
On Mon, May 25, 2020 at 9:54 AM KN6KR <charlesbuxbaum@...> wrote:
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Check out the 4SQRP website at 4sqrp.com
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Re: Confirming account
Welcome to the group! 72/73 Doc K5OSA
On Mon, May 25, 2020, 09:54 KN6KR <charlesbuxbaum@...> wrote:
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Confirming account
KN6KR
I would like to confirm my account with 4sqrp. Thanks Charles KN6KR
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Re: W0RW Lending Library is Open
Jack Hubbard
Do you want any more books? I have 5 or 6 to donate having radio communications in them.
toggle quoted messageShow quoted text
Jack, NI8N Jack Hubbard NI8N
On May 24, 2020, at 12:49 PM, Jack Hubbard <ni8njack@...> wrote:
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Re: problem with my 4SQRP Ozark Patrol Radio
Gm Guys Hope your all have a Safe Memorial Day. Just FYI, Dave Cripe NMØS designed the Ozark Patrol. 72 Johnny ACØBQ
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Check out the 4SQRP website at 4sqrp.com
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Re: problem with my 4SQRP Ozark Patrol Radio
Herb Parsons <radioherb@...>
Thanks Jerome! Herb
-----Original Message-----
From: Jerome Wysocki <jeromewysocki48@...> To: main <main@4SQRP.groups.io> Sent: Sun, May 24, 2020 1:33 pm Subject: Re: [4SQRP] problem with my 4SQRP Ozark Patrol Radio Hi Herb, Try melting and re-flowing the solder on each of the solder pads, one lead at a time for each component, then recheck your voltages. Before doing this to the torroid coil windings, measure their resistances first with an ohm meter. You might have a cold solder joint on one or more of these coil wires, due to the fact that there is transparent enamel insulation around these wires. You undoubtedly carefully scraped off this enamel insulation, but it could be deceptive. It is possible that solder flowed around, but did not stick properly to the wires. I had this happen and had to re-solder mine as such. Visual examination did not reveal the problem, so I carefully tinned the wires and when this appeared ok, I re-soldered the coil back on to the board. This time I had success, and my set worked. Keep us up to date on your attempts to get your receiver going. Hope you get yours up and running soon. 73s Jerry Wysocki, KC9JXE
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Re: problem with my 4SQRP Ozark Patrol Radio
Herb Parsons <radioherb@...>
Thanks again Curt! Herb
-----Original Message-----
From: Curt via groups.io <rhulett1@...> To: main <main@4SQRP.groups.io> Sent: Sun, May 24, 2020 1:41 pm Subject: Re: [4SQRP] problem with my 4SQRP Ozark Patrol Radio "I even removed L1 and reversed it" Be sure to put the toroid back as shown in the build manual. If the "sense" for the one-turn tickler is wrong the regeneration won't. So trying to correct low volume through the speaker, changing L1 may have produced lots of hiss in the headphones but no RF gain ( regeneration ). Also, a gimmick of about 1" twist was good for me using the station antenna. BTW, whoever designed and kitted this radio did a first class job, this regen receiver worked right off of the build table, unlike some others I have built. Especially if the description has "high performance" in the name, I had poor results. Like my dear old Dad always said, better to under promise and over perform than the other way around. Curt KB5JO
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Re: problem with my 4SQRP Ozark Patrol Radio
Curt
"I even removed L1 and reversed it"
Be sure to put the toroid back as shown in the build manual. If the "sense" for the one-turn tickler is wrong the regeneration won't. So trying to correct low volume through the speaker, changing L1 may have produced lots of hiss in the headphones but no RF gain ( regeneration ). Also, a gimmick of about 1" twist was good for me using the station antenna. BTW, whoever designed and kitted this radio did a first class job, this regen receiver worked right off of the build table, unlike some others I have built. Especially if the description has "high performance" in the name, I had poor results. Like my dear old Dad always said, better to under promise and over perform than the other way around. Curt KB5JO
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Re: problem with my 4SQRP Ozark Patrol Radio
Hi Herb,
Try melting and re-flowing the solder on each of the solder pads, one lead at a time for each component, then recheck your voltages. Before doing this to the torroid coil windings, measure their resistances first with an ohm meter. You might have a cold solder joint on one or more of these coil wires, due to the fact that there is transparent enamel insulation around these wires. You undoubtedly carefully scraped off this enamel insulation, but it could be deceptive. It is possible that solder flowed around, but did not stick properly to the wires. I had this happen and had to re-solder mine as such. Visual examination did not reveal the problem, so I carefully tinned the wires and when this appeared ok, I re-soldered the coil back on to the board. This time I had success, and my set worked. Keep us up to date on your attempts to get your receiver going. Hope you get yours up and running soon. 73s Jerry Wysocki, KC9JXE
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Re: W0RW Lending Library is Open
Jack Hubbard
I'll send these two books and also "Between Silk and Cyanide" by Marks in a few weeks. You will really enjoy Mark's book. 73 Jack, NI8N
On Sun, May 24, 2020 at 12:17 PM w0rw <w0rw1@...> wrote: Those are good book suggestions.
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Re: problem with my 4SQRP Ozark Patrol Radio
Herb Parsons <radioherb@...>
Thanks Curt! Herb
-----Original Message----- From: Curt via groups.io <rhulett1@...> To: main <main@4SQRP.groups.io> Sent: Sun, May 24, 2020 8:37 am Subject: Re: [4SQRP] problem with my 4SQRP Ozark Patrol Radio Have you tried the radio with headphones? The volume available from the speaker without more amplification is underwhelming. I added one of those cheap $2 amplifiers to increase the volume through the speaker. Curt KB5JO
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Re: problem with my 4SQRP Ozark Patrol Radio
Herb Parsons <radioherb@...>
Thanks! I'll check it out when I get back, the 1st week in June.
-----Original Message-----
From: Jess Gypin <ontarget1911@...> To: main <main@4sqrp.groups.io> Sent: Sun, May 24, 2020 10:06 am Subject: Re: [4SQRP] problem with my 4SQRP Ozark Patrol Radio You don’t get much volume at all out of the speaker. Yes headphones. And try a couple of different ones if you have them. I also added an audio amplifier. Jess AE0CW On May 24, 2020, at 6:37 AM, Curt via groups.io <rhulett1@...> wrote:
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Re: W0RW Lending Library is Open
w0rw
Those are good book suggestions.
Thanks for the review of the stories. The TinyCat Library is getting pretty full now. i have to limit the total number of books because of the scrolling banner. It is taking 3 minutes right now to scroll through all the books. i could add hundreds of book in a tabular list without a scrolling banner. https://www.librarycat.org/lib/W0RW 73 Paul w0rw
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Re: Yaesu FT60 for sale
RWilliam Henderson
Jess, I will send you the money via paypal if you will give me what I need to send it to you.
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Re: May Edition of the Ozark QRP Banner
RWilliam Henderson
FT60 radio wanted.
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Re: May Edition of the Ozark QRP Banner
RWilliam Henderson
I am looking for a man named Jess who is selling a FT60 radio. I must have accidentally deleted his email and I do not know what his call sign was. If you should know him or see his post would you please have him email me at bhenderson296@.... My name is Bill and my call sign is KD4CX. Thank you, Bill Henderson, KD4CX
On Wed, May 20, 2020 at 4:00 PM W0MQY <womquee@...> wrote:
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Re: W0RW Lending Library is Open
Grover Cleveland
Yet another suggestion and one of my favorite books by Walter Lord
Lonely Vigil: Coastwatchers of the Solomons
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