Re: The QRPp Journal of the Northern California QRP Club, Volumes #1 to #11 [long]
Great resurse.
I have vol 9, with 294 pages, full OK on my HDD. If you will not find, I can to send via transfer (have 82+Mo).
Ady/YO8AZQ
Nu au fost ucisi copaci prin trimiterea acestui mesaj. Cu toate acestea, un num?r mare de electroni au fost deranja?i teribil!
No trees were killed in the sending of this message, however, a large number of electrons were terribly inconvenienced!
Duminic?, 30 martie 2025, la ora 09:49:21 GMT+3, Brian KB9BVN prin groups.io <kb9bvn@...> a scris:
Doamne, ce resurs?. Mul?umim tuturor celor care au contribuit la punerea la dispozi?ie. Cred c? acum am colec?ia ?n folderul Hamradio de pe unitatea mea local?, pentru a fi f?cut? o copie de rezerv? ?n seara asta. Am desc?rcat versiuni PDF de pe archive.org, inclusiv indexul. Pe PDF-ul pe care l-am tras ?n jos pentru Vol 9 Number 2, PDF-ul este grozav pentru aproximativ 9 sau 10 pagini... apoi toate spa?iile goale. Are cineva un PDF bun al acela pe care ar putea fi dispus s? ?l partajeze? Am ?ncercat desc?rcarea de c?teva ori, acela?i rezultat. Mul?umesc din nou lui Chuck ?i Don pentru aceste fi?iere.? de KB9BVN Brian Murrey Pe 29.03.2025, ora 20:07, chuck adams prin groups.io a scris:
Gang,
From 1993, the year in which the NorCal Club was formed, until 2003,
Doug Hendricks, KI6DS, expended considerable energy, time and expense
to provide a quarterly publication so indicated in the title of this
posting.
I personally, and I'm positive (like a proton), that I am not the only
one that considers the work one of his best works.? Consider herding
cats.? That would be much easier than getting a bunch of ham radio
guys and girls to sit down and write about their adventurers using,
building and reviewing everything known to mankind to be published.
Well, related to radio stuff and the hobby.
Being an early member of the club and a devote hoarder I bought and
saved every issue.? A few years after the publication stopped I wanted
to be very sure that the work could be preserved.? I scanned in, as
best I could with the equipment that I had, every issue.
I then gave the work to Doug and he had it on the home page of the club.
He gave up the club to a committee (as clear as my feeble mind can
remember) and left everything in their hands.? The page was last
updated 2019 as shown there.
I recently discovered the work has disappeared from the home page.
The link is broken.? I contacted Doug and asked his permission to put
the work on archive.org for posterity.? Archive.org is a valuable
resource and I hope and I pray that their work will continue forever.
So, if you go to and search for 'QRPp Journal',
you don't need the whole string you will find my postings and you will
also find some uploaded by another individual that you may find useful.
I am not a fan of the grey contrast myself.
It is there for the non-commercial use of the audience and not for
transfer to other sites.? Besides, the files are huge.? Feel free to
download them to your drive(s).
One of the things that archive.org is it uses ABBY Fine Read 9.0 to do
OCR of PDF material and creates a file thereof.? I started a long time
acum ?i am ?ncercat s? creeze un cuprins pentru to?i cei 11 ani. A fost
prea mult pentru mine. Dar acum, cu textul ASCII, poate un erou poate
ap?rea ?i crea acela?i lucru prin t?ierea ?i trecerea selectiv? a fi?ierelor text.
Vor fi ni?te gre?eli de tipar, nu am g?sit niciun program OCR pe P?m?nt care
s? fie 100%. Nici unul. Nici m?car AI nu ar putea face asta.
Dac? te plictise?ti, dac? vrei s? te ui?i la istorie, dac? cau?i
aventur? sau cau?i un Proiect Manhattan, u?or
sau greu, atunci cele 11 volume de mai sus ar putea fi o min? de aur pentru tine.
Anun?a?i-ne.
ciao,
chuck, aa7fo, NorCal #40
PS Vreau s?-i mul?umesc lui Wayne Burdick, N6KR ?i clubului pentru c? a numit o
platform? dup? mine. :-)
PSS Dac? ave?i o scanare mai bun? a uneia sau mai multor probleme, v? rog
, pune?i-o pe archive.org sau trimite?i-mi-o ?i m? voi asigura c?
ajunge acolo.
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I recently downloaded a number of the NorCal manuals, figuring several of those projects would be prime candidates for homebrew/Manhattan building.
Re: Small Wonder manuals
Brian -- I'm not sure if these are what you're looking for, exactly, but I would point you to the website for Midway Electronics, which has manuals for their current adaptation of Dave's design:
And also the special issue of QRPp (v6n3, Autumn 1998) detailing the Small Wonder 40+ build:
I hope this helps.
73 de Todd W2TEF
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I am sure many of us have built the cheap crystal checker/counter available in kit form from China. I have previously used them twice before for receiver frequency displays. They use a PIC16F628A in a circuit that I think originated with DL4YHF.?
?
A couple of months ago I ordered a couple more of these kits intending to use them in upcoming projects.
?
When they arrived I quickly built one up intending to use it to help with some software development I was working on. It did not work. Annoyed I checked my construction. You get no circuit with the kit but the circuit is pretty simple. I quickly realized that the time base oscillator (20MHz) was not working. I found that the crystal was okay so I put the PIC chip in my programmer thinking that it may not be programmed and found it didn't meet the device ID for a PIC16F628 and didn't pass any other tests as a PIC chip. Okay I thought maybe I had received a dud.
?
The PIC16F628 from the second kit also acted the same way. I left a bad review on the sellers site and ordered another kit from a different vendor. I am sure you have already guessed I had the same result with the PIC chip from this new kit when it arrived.
?
I tried to obtain some PIC16F628 chips locally but my normal suppliers have deleted the DIP version. I did manage to get a SMD version and soldered this to an SMD to DIP adapter board. I managed to prove that this was the problem but during the process destroyed the kit's PIC's socket with the thicker adapter board pins. Finally some PIC' chips arrived from? . After programming at last they gave me working counters.
?
I am very aware of fakes from China but thought that kits would be okay. I just can't understand the logic of someone supplying fake chips in a kit. They will just destroy the market for those kits. Even if whoever put the kits together was sold fakes by someone else it has to mean that they have no quality control process in place.
?
So I thought I would put this out there in case others have also fallen for these fakes. The good news is that the rest of the kit seems okay so if you replace the fake chips with real programmed PIC16F628 chips you will get a working counter.
?
73 Mark VK6WV
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Great! I will make sure to save them into my personal collection.?
BTW anyone know of any archives of the Small Wonder Labs rigs that
Dave has permitted?
On 3/30/2025 6:41 PM, chuck adams via
groups.io wrote:
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Some one
pointed out to me that the manuals are back.? FYI
chuck
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You can get them now, if you want to......
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On 3/30/25 15:48, k6whp via groups.io wrote: ..and this means?
--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."
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Re: archive.org and ham radio magazines
I meant to also include the online index to Ham Radio Magazine:?
Thanks,
Robin Midgett K4IDC
I have the CDROM?archive of Ham Radio Magazine. If anyone on the list wants an article, I can save it as a .pdf file & send it to you.
Thanks,
Robin Midgett K4IDC
On Sun, Mar 30, 2025 at 9:52?AM chuck adams via <chuck.adams.phd= [email protected]> wrote: If you search, you can also find:
Ham Radio Magazine
73 Magazine
For computers:
Byte Magazine
Kilobaud Magazine
for those that built their own computers back in the day.
The site is a trove of valuable history of the human race.
You are going to need lots of TBs of disk space, if you are
prone to download the Internet.
chuck, aa7fo
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Re: archive.org and ham radio magazines
I have the CDROM?archive of Ham Radio Magazine. If anyone on the list wants an article, I can save it as a .pdf file & send it to you.
Thanks,
Robin Midgett K4IDC
On Sun, Mar 30, 2025 at 9:52?AM chuck adams via <chuck.adams.phd= [email protected]> wrote: If you search, you can also find:
Ham Radio Magazine
73 Magazine
For computers:
Byte Magazine
Kilobaud Magazine
for those that built their own computers back in the day.
The site is a trove of valuable history of the human race.
You are going to need lots of TBs of disk space, if you are
prone to download the Internet.
chuck, aa7fo
|
..and this means?
--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."
|
Some one pointed out to me that the manuals are back.? FYI
chuck
|
Re: 2SC5706 from Kits and Parts
Thank you Mike N2MS and Chuck AA7FO (that new callsign is going to take a bit of getting used to). Mike - Dan's also has the 2SC2078, which is an old CB PA transistor. Another potential contender. I've gotten some good stuff from Danny in the past. Advisable to call him on the important stuff before putting in an order, unless you don't mind substitutions.
Chuck - you're right that a component tester is a good start, but doesn't tell the full story. I've bought fake PA transistors that looked good in a tester, but wouldn't put out any appreciable power. Good info on the 2SC5706 surviving high SWR. I have a BS170 in the final of a homebrew WSPR transmitter that can operate indefinitely into no load, but that's because I'm only driving it to 200mW output, which is fine for WSPR. For CW though, one needs a bit more power. I'm a fan of the full QRP gallon.
?
Dave
AA7EE (who is taking delivery of a brand new 'scope tomorrow, and can't wait!)
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Re: archive.org and ham radio magazines
To take you even further down the rabbit hole, there is with a large selection of electronics magazines from all round the world.
?
You can disappear in there for months.
--
Terry VK5TM
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Re: 2SC5706 from Kits and Parts
Ooops.? Make that f_T for the bandwidth.? You will need a scope to measure
the RF voltages across the two resistors to determine the current levels.
Sorry, I'm a lousy editor.
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<>? h_T test fixture.? Use with a digital
VFO to sweep for DC to 100MHz or so.? That's my plan.? What's yours?
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Re: 2SC5706 from Kits and Parts
Dave,
You might want to look at the schematics of the 1W and 5W series retired from
KitsAndParts.com and see how they are used.? I also got Diz to use the 3-pin
2.54mm female headers for sockets, just in case.? And the screw+bolt to
hold the heat sink saves a lot of head scratching.
I have a 5W for 20m sitting here on my desk awaiting an order for 2SC5706s
from another vendor.? Didn't see Mike's way down the order form. Sorry
Mike.
I'll check the real ones and then check for fakes.? I'm thinking 14MHz is
good enough to test for my needs.
Speaking of fakes.? I use a component tester to check the box of transistors
for h_FE.? That is necessary but not sufficient for a good test. Anyone
Manhattan up this test fixture?? I will when I get through the ADC-40.
Maybe some has already been there and done that and give us a report.
Just to see how high the critters will go from China.
<>? h_FE test fixture.? Use with a digital
VFO to sweep for DC to 100MHz or so.? That's my plan.? What's yours?
FYI
chuck, aa7fo
BTW.? The 2SC5706 will survive a 'I forgot to hook up the antenna situation',
at least in a 1W or 5W.? I can't say the same for a 2N2222 or BS170.
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On 3/30/25 11:23, davidgeorgerichards via groups.io wrote: I notice that Kits and Parts have a good quantity of the through-hole version of the 2SC5706. I think the through-hole version of this transistor is now obsolete, which is why I'm interested. I'm attempting a scratch-build of a 2N2 for 20M, and wondering if this transistor would be a suitable replacement for the 2SC5739 final? Either way, it looks as if it could be useful for QRP PA's.
Dave
AA7EE
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Re: 2SC5706 from Kits and Parts
Check out Dan's Small Parts RF Transistors
.
Some possibilities are:
RCA-4013 ...TO-39 METAL CAN..LONG LEADS..
NPN , RF POWER AMP/DRIVER
Po 3.5 WATTS MIN., 50 MHZ, 12 VOLT
COLLECTOR/BASE VOLTS 70
COLLECTOR/EMITTER VOLTS 70
BASE/EMITTER VOLTS 4
MAX COLLECTOR CURRENT 1.5 AMPS
MAX, DEVICE DISSIPATION 8 WATTS
FT 150 MHZ
THESE MAKE NICE QRP FINALS AND THESE WERE USED BY JOHNSON I THINK YEARS AGO IN CB'S
SPECIAL DEAL.....PRICE...$3.60 EA.
MOTOROLA MRF8004 TO-39 3.5 WATT AT 27MHZ..PRICE...
$3.75 EA.
MRF8004 DATA SHEET HERE
These make nice little QRP RF final Transistors..get some while available.
Mike N2MS
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On 03/30/2025 2:23 PM EDT davidgeorgerichards via groups.io <djdaverichards@...> wrote:
I notice that Kits and Parts have a good quantity of the through-hole version of the 2SC5706. I think the through-hole version of this transistor is now obsolete, which is why I'm interested. I'm attempting a scratch-build of a 2N2 for 20M, and wondering if this transistor would be a suitable replacement for the 2SC5739 final? Either way, it looks as if it could be useful for QRP PA's.
Dave
AA7EE
|
2SC5706 from Kits and Parts
I notice that Kits and Parts have a good quantity of the through-hole version of the 2SC5706. I think the through-hole version of this transistor is now obsolete, which is why I'm interested. I'm attempting a scratch-build of a 2N2 for 20M, and wondering if this transistor would be a suitable replacement for the 2SC5739 final? Either way, it looks as if it could be useful for QRP PA's.
?
Dave
AA7EE?
|
archive.org and ham radio magazines
If you search, you can also find:
Ham Radio Magazine
73 Magazine
For computers:
Byte Magazine
Kilobaud Magazine
for those that built their own computers back in the day.
The site is a trove of valuable history of the human race.
You are going to need lots of TBs of disk space, if you are
prone to download the Internet.
chuck, aa7fo
|
Re: The QRPp Journal of the Northern California QRP Club, Volumes #1 to #11 [long]
Dave,
Glad you and everyone enjoy the publication.
For those that have lifetime subs to ARRL.? Remember back in the '90s they had the
DVDs that had the whole issue of QST including ads and the member ads in the
back?? It is my understanding now, that you have access to all the old articles
but not the ads.? I enjoyed being able to see what prices of rigs were back
in the old days.? If I paid for advertising in an issue I'd expect it to be
forever.
In QRPp we get to see what bargains we had in the day and to refresh our memory
on how much we spent for this and that.? Might not be a good idea, but it
is there.
Doug published the initial issues for free and then went to $5 per year and
I find it awesome to consider the value.? Priceless.
thanks to all and to all a good night,
chuck, aa7fo
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On 3/30/25 06:52, davidgeorgerichards via groups.io wrote: On Sat, Mar 29, 2025 at 05:07 PM, chuck adams wrote:
So, if you go to <> and search for 'QRPp
Journal',
you don't need the whole string you will find my postings and you will
also find some uploaded by another individual that you may find
useful.
Thanks for this Chuck. I downloaded all 11 volumes a few years ago, from your old site, I believe. It's good to have the other scans that are on the Internet Archive, as well as Don's index (thank you Don). QRPp, for me, exemplified the spirit of homebrew QRP amateur radio. Far more interesting than pages of full color glossy ads for brand new commercial gear. Plus, the aesthetic and form factor of QRPp was spot-on. The physical journal was a manageable size, just inviting one to thumb through it multiple times. I don't know - maybe it's just me, but I find it more fun to leaf through a small publication like this, than a full-size 8.5 x 11 publication. I'm a member of GQRP, and enjoy SPRAT for the same reasons too.
Good stuff, good stuff. Thank you, thank you!
Dave
AA7EE
_._,_._,_
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Re: The QRPp Journal of the Northern California QRP Club, Volumes #1 to #11 [long]
On Sat, Mar 29, 2025 at 05:07 PM, chuck adams wrote:
So, if you go to <> and search for 'QRPp Journal',
you don't need the whole string you will find my postings and you will
also find some uploaded by another individual that you may find useful.
Thanks for this Chuck. I downloaded all 11 volumes a few years ago, from your old site, I believe. It's good to have the other scans that are on the Internet Archive, as well as Don's index (thank you Don). QRPp, for me, exemplified the spirit of homebrew QRP amateur radio. Far more interesting than pages of full color glossy ads for brand new commercial gear. Plus, the aesthetic and form factor of QRPp was spot-on. The physical journal was a manageable size, just inviting one to thumb through it multiple times. I don't know - maybe it's just me, but I find it more fun to leaf through a small publication like this, than a full-size 8.5 x 11 publication. I'm a member of GQRP, and enjoy SPRAT for the same reasons too.
?
Good stuff, good stuff. Thank you, thank you!
?
Dave
AA7EE
|
Last Call for articles for April 2025 issue of the Flying Pigs BBQ Newsletter
Gang,
This is a last call for articles for the April 2025 issue of the BBQ.
Please send your submissions to editor@...
O. Alan Jones
N8WQ
BBQ Editor
FP #4371
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Re: The QRPp Journal of the Northern California QRP Club, Volumes #1 to #11 [long]
I downloaded all the ones marked as 'pdf with text' from Archive.org and all of them are complete, no blank pages.
--
Terry VK5TM
|
Todd W2TEF
Brian KB9BVN
Robin Midgett
k6whp
Alan N8WQ