Re: Aluminum Enclosures by K7QO
KEN;
After reading your biography, it sounds as if you ARE fully qualified.
|
Re: Aluminum Enclosures by K7QO
When I ordered my KAKA Industrial 12" bench shear from Amazon for $135
with Free Shipping, there were 9 available. Yesterday I looked and saw
there were 7 available. I just looked and there is 1 left. It weighs
62+ pounds and has free shipping! The exact same bench shear sold at
the KAKA Industrial website is $270 (twice the price). Mine has
already been shipped. I am expecting it to arrive sometime later this
week.
Regards,
Ken, KM4NFQ "Not Fully Qualified"
toggle quoted message
Show quoted text
On Tue, Aug 13, 2019 at 7:08 AM Jim Burns <outbackerwb4ilp@...> wrote:
I watch lots of YouTube videos that teach something. I love to learn.
Chuck's videos are great and I would hate to see them go. They are a great
reference for the many of us that are interested in such things. We are a
small percentage of our hobby but still, we are a considerable number ! I
have bought both sizes of brakes at harbor freight and hope to get a shear
soon . I think home fabrication, both electronic and mechanical, is the
best and most fun part of this great hobby.
Personally, assembling a shop and collecting tools, equipment and
components is very enjoyable for me. By fall I hope to be building a QRP
station and regen radios.
Thanks Chuck !
Jim WB4ILP
On 9:39PM, Mon, Aug 12, 2019 Jack via Groups.Io <jjpurdum=
[email protected] wrote:
I don't know about Chuck, but I'm done with Google. I use DuckDuckGo now
and I can't see any degrading in abilities.
Jack, W8TEE
On Monday, August 12, 2019, 5:56:42 PM EDT, Shirley Dulcey KE1L <
mark@...> wrote:
I admit that I'm confused about Chuck's talking about taking the
videos offline. They're on YouTube, which doesn't charge for them
being there. Low viewership is not a reason in itself for removing
them, since the site will happily continue to host the videos even if
nobody watches them.
Chuck may have other reasons for wanting to discontinue his
relationship with YouTube and Google that he hasn't discussed.
On Sun, Aug 11, 2019 at 11:04 PM Ray via Groups.Io
<rcbuckiii@...> wrote:
I use this method to download YT videos from the command line using
Unix. It allows you to select the video resolution you want to use.
Note:
When you run this command: youtube-dl -F <video_url> you may see
filenames that say video only. You do not want those. It means exactly what
it says, the video is there without audio.
Ray,
AB7HE
|
Re: Aluminum Enclosures by K7QO
I watch lots of YouTube videos that teach something. I love to learn. Chuck's videos are great and I would hate to see them go. They are a great reference for the many of us that are interested in such things. We are a small percentage of our hobby but still, we are a considerable number ! I have bought both sizes of brakes at harbor freight and hope to get a shear soon . I think home fabrication, both electronic and mechanical, is the best and most fun part of this great hobby. Personally, assembling a shop and collecting tools, equipment and components is very enjoyable for me. By fall I hope to be building a QRP station and regen radios. Thanks Chuck ! Jim WB4ILP On 9:39PM, Mon, Aug 12, 2019 Jack via Groups.Io <jjpurdum= [email protected] wrote: I don't know about Chuck, but I'm done with Google. I use DuckDuckGo now
and I can't see any degrading in abilities.
Jack, W8TEE
On Monday, August 12, 2019, 5:56:42 PM EDT, Shirley Dulcey KE1L <
mark@...> wrote:
I admit that I'm confused about Chuck's talking about taking the
videos offline. They're on YouTube, which doesn't charge for them
being there. Low viewership is not a reason in itself for removing
them, since the site will happily continue to host the videos even if
nobody watches them.
Chuck may have other reasons for wanting to discontinue his
relationship with YouTube and Google that he hasn't discussed.
On Sun, Aug 11, 2019 at 11:04 PM Ray via Groups.Io
<rcbuckiii@...> wrote:
I use this method to download YT videos from the command line using
Unix. It allows you to select the video resolution you want to use.
Note:
When you run this command: youtube-dl -F <video_url> you may see
filenames that say video only. You do not want those. It means exactly what
it says, the video is there without audio.
Ray,
AB7HE
|
I'm 85 years old and I have too many projects. I learned radio in the USAF in the 1950's when they had tubes.
I have been studying the Burdick designs from the NC40 through the K3.
They are all based on the 4.915MHz crystal IF.
The NC-40 is a single band unit. All the others use the same conversion scheme. All the necessary crystals for the HF conversion are available.
The NC40, NC Sierra, and K1 do not have RF amps. The K2 and K3 do have RF amps.
I have been reading about the problems of using a QSD above 20M. Most old receivers had poor performance above 20M. The solution was a preselector or converter. NO MAGIC!
I'm looking to build a transceiver using a QRP Labs receiver module to replace the 4.915MHz IF stage. But I would run it as a 4.915 QSD. Then use a NE-602 mixer and RF amplifier in front of it.
My first effort would be to get a receiver working. Then do the transmitter. I would like both CW and SSB if possible. But I don't know how the SDRs generate SSB.
I have 3 NC-40 PCBs here ready to build. I found a lot of the capacitors on the parts list are no longer available. But I think I have found substitutes. I just need to accumulate the parts ONE PIECE AT A TIME when I have the money.
And I did order most of the parts for a NorCal Sierra from Germany. I hope they show up. I plan to use a DDS with it.
My intention is to produce a variation on the Burdick design that does not require the matched crystals.
If the good parts of what I read about the QSD are true it should work.
FWTW:
There are some things about the QRP Labs products I just don't like. I do have a QRP Labs VFO kit that I have not assembled. I also have their Arduino Shield with the SI5351 DDS.
Bob Macklin
K5MYJ
Seattle, Wa
|
I use DX Lab with DX Atlas to monitor the CW (and RTTY) bands through the
RBN.
DX Lab can produce a map on DX Atlas that shows the current activity.
See the attachment.
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
toggle quoted message
Show quoted text
----- Original Message ----- From: "Larry Gaalaas" <llgaalaas@...> To: < [email protected]> Sent: Monday, August 12, 2019 8:40 PM Subject: Re: [qrp-tech] Parking Spaces 40 CW was alive and well this evening.
Larry KB0R
On Mon, Aug 12, 2019 at 2:54 PM Curt via Groups.Io <wb8yyy=
[email protected]> wrote:
Up until beginning of summer skcc had quite a run using spectrum
typically
50 khz up from bottom edge. Of course, we are the cw amish who don't use
electronic keys, or choose to pound brass for sake of community. Many qrp
ops you recognize are skcc active. I think it is summer and low solar
flux, as often 40m only has spotlight paths.
On ft8, it seems to be many big guns who aren't finding cw activity. Some
of these dudes will run 3 bands at once. At least they aren't hogging
much
spectrum.
CW ain't played out. We have more than 8000 QCX rigs. Just a little
propagation will bring some ops. Skcc is doing decent in incubating some
new ops.
Curt
|
40 CW was alive and well this evening. Larry KB0R On Mon, Aug 12, 2019 at 2:54 PM Curt via Groups.Io <wb8yyy= [email protected]> wrote: Up until beginning of summer skcc had quite a run using spectrum typically
50 khz up from bottom edge. Of course, we are the cw amish who don't use
electronic keys, or choose to pound brass for sake of community. Many qrp
ops you recognize are skcc active. I think it is summer and low solar
flux, as often 40m only has spotlight paths.
On ft8, it seems to be many big guns who aren't finding cw activity. Some
of these dudes will run 3 bands at once. At least they aren't hogging much
spectrum.
CW ain't played out. We have more than 8000 QCX rigs. Just a little
propagation will bring some ops. Skcc is doing decent in incubating some
new ops.
Curt
|
Re: Aluminum Enclosures by K7QO
I don't know about Chuck, but I'm done with Google. I use DuckDuckGo now and I can't see any degrading in abilities.
Jack, W8TEE
toggle quoted message
Show quoted text
On Monday, August 12, 2019, 5:56:42 PM EDT, Shirley Dulcey KE1L <mark@...> wrote: I admit that I'm confused about Chuck's talking about taking the videos offline. They're on YouTube, which doesn't charge for them being there. Low viewership is not a reason in itself for removing them, since the site will happily continue to host the videos even if nobody watches them. Chuck may have other reasons for wanting to discontinue his relationship with YouTube and Google that he hasn't discussed. On Sun, Aug 11, 2019 at 11:04 PM Ray via Groups.Io <rcbuckiii@...> wrote:
I use this method to download YT videos from the command line using Unix. It allows you to select the video resolution you want to use.
Note:
When you run this command: youtube-dl -F <video_url>聽 you may see filenames that say video only. You do not want those. It means exactly what it says, the video is there without audio.
Ray,
AB7HE
|
Re: Low cost Visor Magnifier even lower cost
Harbor Freight used to have a usable, affordable magnifying visor (with multiple magnification factors), complete with an LED headlamp, for about $10. The current version, $5, is still useful, but probably less so...
Glad I bought a spare a couple of years ago!
Regards,
--Kirk, NT0Z
My book, "Stealth Amateur Radio," is now available from www.stealthamateur.com and on the Amazon Kindle (soon)
toggle quoted message
Show quoted text
On Monday, August 12, 2019, 4:11:41 PM CDT, Shirley Dulcey KE1L <mark@...> wrote: Looks like people have already bought them all. It's listed as out of stock. On Mon, Aug 12, 2019 at 2:25 PM Ray via Groups.Io <rcbuckiii@...> wrote:
It works for me on my board assembly process. Most of the time I wear 2 pair like Bill does. Occasionally I resort to 3 pair for things like 0402 resistors. If I need more magnification than 3 pair provides, I take the stereo microscope out of the box.
Ray,
AB7HE
|
Re: Aluminum Enclosures by K7QO
I admit that I'm confused about Chuck's talking about taking the videos offline. They're on YouTube, which doesn't charge for them being there. Low viewership is not a reason in itself for removing them, since the site will happily continue to host the videos even if nobody watches them. Chuck may have other reasons for wanting to discontinue his relationship with YouTube and Google that he hasn't discussed. On Sun, Aug 11, 2019 at 11:04 PM Ray via Groups.Io <rcbuckiii@...> wrote:
I use this method to download YT videos from the command line using Unix. It allows you to select the video resolution you want to use.
Note:
When you run this command: youtube-dl -F <video_url> you may see filenames that say video only. You do not want those. It means exactly what it says, the video is there without audio.
Ray,
AB7HE
|
Re: Low cost Visor Magnifier even lower cost
Looks like people have already bought them all. It's listed as out of stock. On Mon, Aug 12, 2019 at 2:25 PM Ray via Groups.Io <rcbuckiii@...> wrote:
It works for me on my board assembly process. Most of the time I wear 2 pair like Bill does. Occasionally I resort to 3 pair for things like 0402 resistors. If I need more magnification than 3 pair provides, I take the stereo microscope out of the box.
Ray,
AB7HE
|
Up until beginning of summer skcc had quite a run using spectrum typically 50 khz up from bottom edge. Of course, we are the cw amish who don't use electronic keys, or choose to pound brass for sake of community. Many qrp ops you recognize are skcc active. I think it is summer and low solar flux, as often 40m only has spotlight paths.
On ft8, it seems to be many big guns who aren't finding cw activity. Some of these dudes will run 3 bands at once. At least they aren't hogging much spectrum.
CW ain't played out. We have more than 8000 QCX rigs. Just a little propagation will bring some ops. Skcc is doing decent in incubating some new ops.
Curt
|
Re: Low cost Visor Magnifier even lower cost
It works for me on my board assembly process. Most of the time I wear 2 pair like Bill does. Occasionally I resort to 3 pair for things like 0402 resistors. If I need more magnification than 3 pair provides, I take the stereo microscope out of the box.
Ray,
AB7HE
|
Re: Low cost Visor Magnifier even lower cost
Let me know how you get on if you get a chance. It certainly works for me.
Bill - G4ERV
toggle quoted message
Show quoted text
----- Original Message ----- From: "Roy Appleton" <twelveoclockhigh@...> To: [email protected]Date: Mon, 12 Aug 2019 11:34:29 -0500 Subject: Re: [qrp-tech] Low cost Visor Magnifier even lower cost Interesting trick! I'll have to try that one!
Thanks,
Roy
WA0YMH
On Mon, Aug 12, 2019, 10:56 AM billcoombes <bill@...> wrote:
I have a set of those but one of the best ways I have found to give me the
magnification that I need for PCB work is to leave my reading glasses on
and then put on another pair of cheap small reading glasses so that they
cover the lower half of my normal reading glasses. This gives me the
magnification I need and cost next to nothing. (�1 or $1 shop for the cheap
2nd pair) A Clocksmith showed me this trick.
If you don't normally use reading glasses, you probably don't need to
magnification but it might be worth trying.
Bill - G4ERV
----- Original Message -----
From: "David Wilcox via Groups.Io" <Djwilcox01@...>
To: QRP-L Mailing List <qrp-l@...>, Qrp-tech <
[email protected]>, 4 State QRP <[email protected]>, "QRP ARCI
Mailing List at groups.io" <[email protected]>
Date: Mon, 12 Aug 2019 13:11:48 +0000 (UTC)
Subject: [qrp-tech] Low cost Visor Magnifier even lower cost
The former low cost Visor Magnifier that I notified everyone about previously is now available from American Science & Surplus for the low
cost of $7.95 each. I bought one for my grandson and then ordered another
one for me as a back up to take to buildathons..... nothing lost if lost or
given away.
See sciplus.com and go to Headband Magnifying Visor. There is also a 15% discount for signing up with them. What a deal!
I have no affiliation with this company, just a happy purchaser in the past.
Dave K8WPE
|
Re: Low cost Visor Magnifier even lower cost
Interesting trick! I'll have to try that one!
Thanks,
Roy
WA0YMH
toggle quoted message
Show quoted text
On Mon, Aug 12, 2019, 10:56 AM billcoombes <bill@...> wrote: I have a set of those but one of the best ways I have found to give me the
magnification that I need for PCB work is to leave my reading glasses on
and then put on another pair of cheap small reading glasses so that they
cover the lower half of my normal reading glasses. This gives me the
magnification I need and cost next to nothing. (拢1 or $1 shop for the cheap
2nd pair) A Clocksmith showed me this trick.
If you don't normally use reading glasses, you probably don't need to
magnification but it might be worth trying.
Bill - G4ERV
----- Original Message -----
From: "David Wilcox via Groups.Io" <Djwilcox01@...>
To: QRP-L Mailing List <qrp-l@...>, Qrp-tech <
[email protected]>, 4 State QRP <[email protected]>, "QRP ARCI
Mailing List at groups.io" <[email protected]>
Date: Mon, 12 Aug 2019 13:11:48 +0000 (UTC)
Subject: [qrp-tech] Low cost Visor Magnifier even lower cost
The former low cost Visor Magnifier that I notified everyone about previously is now available from American Science & Surplus for the low
cost of $7.95 each. I bought one for my grandson and then ordered another
one for me as a back up to take to buildathons..... nothing lost if lost or
given away.
See sciplus.com and go to Headband Magnifying Visor. There is also a 15% discount for signing up with them. What a deal!
I have no affiliation with this company, just a happy purchaser in the past.
Dave K8WPE
|
Re: Low cost Visor Magnifier even lower cost
I have a set of those but one of the best ways I have found to give me the magnification that I need for PCB work is to leave my reading glasses on and then put on another pair of cheap small reading glasses so that they cover the lower half of my normal reading glasses. This gives me the magnification I need and cost next to nothing. (�1 or $1 shop for the cheap 2nd pair) A Clocksmith showed me this trick.
If you don't normally use reading glasses, you probably don't need to magnification but it might be worth trying.
Bill - G4ERV
toggle quoted message
Show quoted text
----- Original Message ----- From: "David Wilcox via Groups.Io" <Djwilcox01@...> To: QRP-L Mailing List <qrp-l@...>, Qrp-tech < [email protected]>, 4 State QRP < [email protected]>, "QRP ARCI Mailing List at groups.io" < [email protected]> Date: Mon, 12 Aug 2019 13:11:48 +0000 (UTC) Subject: [qrp-tech] Low cost Visor Magnifier even lower cost The� former low cost Visor Magnifier that I notified everyone about previously is now available from American Science & Surplus for the low cost of $7.95 each.� I bought one for my grandson and then ordered another one for me as a back up to take to buildathons..... nothing lost if lost or given away.牋
See� sciplus.com and go to Headband Magnifying Visor.� There is also a 15% discount for signing up with them.� What a deal!
I have no affiliation with this company, just a happy purchaser in the past.
Dave K8WPE
|
Hantek 2C42 'Scope & 2ea 40m Cauer...
... design LPFs.
Used a FeelTech FY6600-M60** function generator and O'scope to evaluate two filters assembled with standard parts. The results indicated that the filers meet the design requirements.*
The filters were developed with Elsie then tweaked to use standard value MLCC 5% capacitors. The inductors use T50-2 and T50-6 wound and measured for the same inductance.
Elsie tweaked model values: Transmission loss = -0.226 dB 7.1MHz, RL -17dB***, VSWR 1.33, Knee -2.89 dB @8MHz, -3dB @9.19 MHz, -63dB @14.2MHz, -80dB @21.3MHz.
The amplitude of the generator is 'flat' from 2 to 20 MHz. That is, lining up the peak of the sine wave on one horizontal line, the peak remained constant.
Using the generator sweep function from 5 to 10 MHz, the filter load (50ohm) voltage remained flat to about 8MHz for both filters: close to the model value. The amplitude changed quickly then to the end of the sweep range. The sweep time used was 25 seconds and the sweep cycles so you can get repetitive 'looks' at the frequency and amplitude values. The scope measurement window is a little help too.
I wasn't able to measure the notch attenuation or insertion loss. The sweep can be stopped and started but it's awkward and not precise. Here's where a much large screen and continuously adjustable settings would be needed (or a spectrum analyzer... :-)
*I would use the MFJ-259C to make other measurements.
**Bangood $87
Fun Stuff...
Chuck, W5USJ (ex K2OFN)
ARCI 5422, SKCC 19956
EM22cv, Rains Co., Texas
|
Low cost Visor Magnifier even lower cost
The聽 former low cost Visor Magnifier that I notified everyone about previously is now available from American Science & Surplus for the low cost of $7.95 each.聽 I bought one for my grandson and then ordered another one for me as a back up to take to buildathons..... nothing lost if lost or given away.聽聽
See聽 sciplus.com and go to Headband Magnifying Visor.聽 There is also a 15% discount for signing up with them.聽 What a deal!
I have no affiliation with this company, just a happy purchaser in the past.
Dave K8WPE
|
Re: Looking for 15 MHz Crystals
Thanks Stef
toggle quoted message
Show quoted text
On 8/12/19 1:01 AM, sTef - DM5TU/VY1QRP wrote: Hi Diz,
talk to Josef at:
krystaly@...
Here I ordered all my rocks for my HF projects like the SIERRA.
Best 72/3 from Germany
de DM5TU - sTef
|
Re: Looking for 15 MHz Crystals
Hi Diz, krystaly.cz are very expensive. I have good experiences
with but minimal order will be 1000 PCS.
73 Ondra OK1CDJ
ne 11. 8. 2019 v 21:39 odes铆latel w8diz <w8diz@...> napsal:
toggle quoted message
Show quoted text
Hi All,
I am looking for several hundred 15 MHz crystals that are full size HC49
and Parallel Resonant, 18, 20pf or whatever.
All I can find are series resonant crystals in full size HC49 cans.
Other that to order custom crystals from China of wherever, anybody know
of a source?
I need them to create a 5Watter for the old novice section of the 40
meter CW band.
TIA, Diz, W8DIZ
--
73 Ondra OK1CDJ
|
Re: Looking for 15 MHz Crystals
Hi Diz,
talk to Josef at:
krystaly@...
Here I ordered all my rocks for my HF projects like the SIERRA.
Best 72/3 from Germany
de DM5TU - sTef
--
72 de sTef
... -.-
DM5TU / VY1QRP - DL-QRP-AG *GM* - GQRP #8769 - CalQRP #034 - NAP #1607
|
Ken KM4NFQ
Jack
Kirk, NT0Z
Shirley Dulcey KE1L
David Wilcox K8WPE
sTef - DM5TU/VY1QRP