Mark, I would also like to be included in the group buy.
73, Ken
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As I look into ordering the miscellaneous parts for my JackAl board it becomes obvious quickly that ordering parts in some quantity makes sense. It would seem that ordering parts for 10 kits may make sense if I can get 9 others to buy into this idea.?
Specifically, I am only talking about the parts on the first page of the parts list. I might add some RG174 or RG316 as well. The other parts are probably more easily handled by each of us on our own depending on what we want.
I would like to package a complete set of parts to keep things simple even though I and most likely others have some parts on hand already. I'm not doing this as a business but simply to keep costs down.
Expected cost(including shipping(US only unless convinced otherwise) will be what it costs me- no profit(and thus no guarantees/returns/etc.) and hopefully minimal hassle.
If you want to join my buy, please contact me. If there is enough interest, I will order parts this weekend.?
?
Thanks,
Mark
KD2PMA
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Support for Capacitive Touch Screen?
Just wondering if that was ever an idea.
Capacitive usually works much better than Resitive for touch screens, probably worth the extra $3.
Of course if there are no libraries to support it that would be an issue.
Pete B. - WB4TKA
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Please add N2NOL to your list.? Do you have a BOM and a ballpark $$ ?
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I just received my board.? Now I am looking for info on the parts needed/source and assembly directions.? I found lots of web info but I am not confidant in it as it is sketchy and some is old.? Is there a one stop web place to go for the latest up-to-date information.
Also, Jack, have you attended the Findlay hamfest? I am from near there and like to attend it and some local fairs.
73
N2NOL
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I am up to 11 in the build group so far, so it is a go. I will be sending a group email out to confirm I got everyone that wants in. If anyone else wants in you probably have until Monday as that is most likely when I will do the ordering. Also, as this is a new project and I am seeing some discrepancies in information I would ask anyone with important information or insight- errata, best pricing source, etc. to forward that to me to consolidate. Multiple eyes should help keep us on the straight and narrow.
Thanks,
Mark
KD2PMA?
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Amazon has the ST L78S05CV/2A package of 10 on prime for $5.90...
Ordered.??
Mark
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Mark,
i would be interested in your offer. Makes a lot of sense to keep the costs down.?
73,
Guy WB7SZI?
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You could try searching your favorite supplier for an L7805CV.
Art N4EZZ <n4ezz@...>
GnuPG key ID 0x6712DD0E
=============================
"The Constitution shall never be construed to prevent the people of the
United States who are peaceable citizens from keeping their own arms."
Samuel Adams, Massachusetts Ratifying Convention, 1788
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On 1/18/19 11:48 AM, David Berkompas wrote: Looks to me like that's putting out a negative voltage, definitely not what we want.
Dave - AI6K
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The ST Miicro replacement for a common 3 terminal linear regulator is : ?L78S05CV is pin for pin, and 2 Amps. .71 cents for single quantities. (mouser, digikey, etc). Internet cheaper. ? Jack Wilker KB9KJO ? Sent from for Windows 10 ?
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From: jjpurdum via Groups.IoSent: Friday, January 18, 2019 1:46 PM To: [email protected]Subject: Re: [JackAl] Acceptable parts ? Neither is okay. The 7805 you listed for 1A is right at the margin. It needs to be above 1.25A. The 7905 is a regulator for negative voltages, so that won't work at all. On Friday, January 18, 2019, 1:44:51 PM EST, Mark Hatch <mark2382@...> wrote: Digikey lists the 7805 as a 1A part. See:?
There is a LM7905 that is 1.5A:?
Is the 7805 OK or should we be using the 7905?
Mark
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It really doesn't matter, provided that:
1) the current output is 1.25A or more 2) the pinout match the circuit board. For example, if you look at the board, you'll see the 7805? regulator has the GND as the center pin, whereas the 3.3V regulator has pin 1 and the GND. Some 12V and 5V regulators have different IN, OUT, and GND pin connections. Bad things happen if you put the wrong pin placements in the board, even if the amperage and voltage are correct.
Jack, W8TEE
On Friday, January 18, 2019, 2:03:26 PM EST, Mark Hatch <mark2382@...> wrote:
Oops, yup, missed that little "-".? Probably searching wrong on Digikey, but not finding a 7805 that is 1.5A when searching for "LM7805CT/NOPB-ND" .? Perhaps I need to go somewhere else?
Mark
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Oops, yup, missed that little "-".? Probably searching wrong on Digikey, but not finding a 7805 that is 1.5A when searching for "LM7805CT/NOPB-ND" .? Perhaps I need to go somewhere else?
Mark
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Neither is okay. The 7805 you listed for 1A is right at the margin. It needs to be above 1.25A. The 7905 is a regulator for negative voltages, so that won't work at all.
Jack, W8TEE
On Friday, January 18, 2019, 1:44:51 PM EST, Mark Hatch <mark2382@...> wrote:
Digikey lists the 7805 as a 1A part. See:?
There is a LM7905 that is 1.5A:?
Is the 7805 OK or should we be using the 7905?
Mark
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Digikey lists the 7805 as a 1A part. See:?
There is a LM7905 that is 1.5A:?
Is the 7805 OK or should we be using the 7905?
Mark
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I sent the edited file to Al, but he's up to his ass in alligators right now, as are we both, getting the software finished up. Everyone needs to know the regulator should be a 7805.
Jack, W8TEE
On Friday, January 18, 2019, 11:24:30 AM EST, Gary Anderson <gary.ag5tx@...> wrote:
Hi Jack, I don't think the "Bag of Parts" file from the website is reflecting your latest updates.? Maybe still linking to the old file? (wasn't obvious to me when looking at page source) I downloaded it at 6:29 AM CST.? I saw that the previous version I had was stale. You commented the page with " ?updated 2019-01-16". Nice!File name when downloaded is "BagOfPartsWithPrices_Revised [17650].docx" Just downloaded it again at 10:04 CST
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1
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5V, 1.5A voltage regulator, TO-220
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LM7812CT/NOPB-ND? (Digikey)
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1.50
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Also refreshed the cache and tried again.? Same file. Rgds, Gary
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On Jan 18, 2019, at 9:19 AM, mhill001@... wrote: As I look into ordering the miscellaneous parts for my JackAl board it becomes obvious quickly that ordering parts in some quantity makes sense. It would seem that ordering parts for 10 kits may make sense if I can get 9 others to buy into this idea.?
Specifically, I am only talking about the parts on the first page of the parts list. I might add some RG174 or RG316 as well. The other parts are probably more easily handled by each of us on our own depending on what we want.
I would like to package a complete set of parts to keep things simple even though I and most likely others have some parts on hand already. I'm not doing this as a business but simply to keep costs down.
Expected cost(including shipping(US only unless convinced otherwise) will be what it costs me- no profit(and thus no guarantees/returns/etc.) and hopefully minimal hassle.
If you want to join my buy, please contact me. If there is enough interest, I will order parts this weekend.?
?
Thanks,
Mark
KD2PMA
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Hi Jack, I don't think the "Bag of Parts" file from the website is reflecting your latest updates.? Maybe still linking to the old file? (wasn't obvious to me when looking at page source) I downloaded it at 6:29 AM CST.? I saw that the previous version I had was stale. You commented the page with " ?updated 2019-01-16". Nice!File name when downloaded is "BagOfPartsWithPrices_Revised [17650].docx" Just downloaded it again at 10:04 CST
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1
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5V, 1.5A voltage regulator, TO-220
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LM7812CT/NOPB-ND? (Digikey)
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1.50
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Also refreshed the cache and tried again.? Same file. Rgds, Gary
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I bought 50 of the transformers for my builder's group for around $21, including shipping. In 100 unit quantities, the cost was less than $0.35 each. In single-lot quantities, they are almost always over $2 each. Bulk buy and sell for $1 each and the buyer is still getting a half-price deal!
Jack, W8TEE
On Friday, January 18, 2019, 10:57:48 AM EST, STEVE via Groups.Io <behlmer@...> wrote:
I’ve already ordered some of the parts. I’ll contribute a couple transformers. Thanks? Steve Behlmer
Been ordering parts all morning, also bought quantities of everything but the display and teeney. Will have spares once everything arrives. (10m each of the coax types). Let me know? Ron W0QVJ
Sent from my Galaxy Tab? E
-------- Original message -------- Date: 1/18/19 7:19 AM (GMT-07:00) Subject: [JackAl] JackAl Parts Kit
As I look into ordering the miscellaneous parts for my JackAl board it becomes obvious quickly that ordering parts in some quantity makes sense. It would seem that ordering parts for 10 kits may make sense if I can get 9 others to buy into this idea.? Specifically, I am only talking about the parts on the first page of the parts list. I might add some RG174 or RG316 as well. The other parts are probably more easily handled by each of us on our own depending on what we want. I would like to package a complete set of parts to keep things simple even though I and most likely others have some parts on hand already. I'm not doing this as a business but simply to keep costs down. Expected cost(including shipping(US only unless convinced otherwise) will be what it costs me- no profit(and thus no guarantees/returns/etc.) and hopefully minimal hassle. If you want to join my buy, please contact me. If there is enough interest, I will order parts this weekend.? ? Thanks, Mark KD2PMA
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I’ve already ordered some of the parts. I’ll contribute a couple transformers. Thanks? Steve Behlmer
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On Jan 18, 2019, at 7:34 AM, eyelessmisfit < eyelessmisfit@...> wrote: Been ordering parts all morning, also bought quantities of everything but the display and teeney. Will have spares once everything arrives. (10m each of the coax types). Let me know? Ron W0QVJ
Sent from my Galaxy Tab? E
-------- Original message -------- Date: 1/18/19 7:19 AM (GMT-07:00) Subject: [JackAl] JackAl Parts Kit
As I look into ordering the miscellaneous parts for my JackAl board it becomes obvious quickly that ordering parts in some quantity makes sense. It would seem that ordering parts for 10 kits may make sense if I can get 9 others to buy into this idea.? Specifically, I am only talking about the parts on the first page of the parts list. I might add some RG174 or RG316 as well. The other parts are probably more easily handled by each of us on our own depending on what we want. I would like to package a complete set of parts to keep things simple even though I and most likely others have some parts on hand already. I'm not doing this as a business but simply to keep costs down. Expected cost(including shipping(US only unless convinced otherwise) will be what it costs me- no profit(and thus no guarantees/returns/etc.) and hopefully minimal hassle. If you want to join my buy, please contact me. If there is enough interest, I will order parts this weekend.? ? Thanks, Mark KD2PMA
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I’m in. Steve Behlmer KE7GO? Steve Behlmer
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On Jan 18, 2019, at 6:56 AM, jjpurdum via Groups.Io < jjpurdum@...> wrote:
Glad to see this, Mark, and it makes sense. Al and I investigated quantity discounts on both the display and the Teensy/audio boards, but (as I recall), there was only a 3% discount on the display and not much more on the PJRC products. It simply wasn't worth the effort.
However, when our builder's group ordered the JackAl board, I ordered enough parts to get the 25-count discount on a number of the parts and that does make a difference. Also, it never hurts to ask any vendor, big or small, for a quantity discount. Vendors like Digikey, Mouser, Arrow, etc. usually show their discounts. Tayda Electronics does and we use them a lot because they have a distribution center in CO so common parts arrive fairly quickly. eBay vendors will also entertain discounts, just ask.
I wish you well in this effort!
Jack, W8TEE
On Friday, January 18, 2019, 9:26:50 AM EST, < mhill001@...> wrote:
As I look into ordering the miscellaneous parts for my JackAl board it becomes obvious quickly that ordering parts in some quantity makes sense. It would seem that ordering parts for 10 kits may make sense if I can get 9 others to buy into this idea.?
Specifically, I am only talking about the parts on the first page of the parts list. I might add some RG174 or RG316 as well. The other parts are probably more easily handled by each of us on our own depending on what we want.
I would like to package a complete set of parts to keep things simple even though I and most likely others have some parts on hand already. I'm not doing this as a business but simply to keep costs down.
Expected cost(including shipping(US only unless convinced otherwise) will be what it costs me- no profit(and thus no guarantees/returns/etc.) and hopefully minimal hassle.
If you want to join my buy, please contact me. If there is enough interest, I will order parts this weekend.?
?
Thanks,
Mark
KD2PMA
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EDGAR ALEXANDER
Guy
jjpurdum