Digest for sci.electronics.repair@googlegroups.com - 11 updates in 5 topics

OGER <OGER@freenews.com>: Sep 25 10:19AM -0700

Because it is there !
The least mod to the driveway monitor is desired.
That way if in the future the PIR xmtr fails I can simply replace it or
the receiver if it fails.
 
So making the PIR detect something and activating the transmitter so the
receiver will flash as it normally would.
 
 
 
Terry Pinnell wrote:
OGER <OGER@freenews.com>: Sep 25 10:21AM -0700

That receiver has a tiny LED, I need more brightness to illuminate the
far side of the room. The driveway monitor has three leds and is bright.
 
 
 
Terry Schwartz <tschw10117@aol.com>: Sep 25 03:25PM -0700

On Tuesday, September 25, 2018 at 12:22:40 PM UTC-5, OGER wrote:
> > I got a garage door monitor from Sears. It has a device (powered by a CR2032 battery) that attaches to the door, and it transmits a signal when the door is open (mercury switch?). A receiver in the house has red and green LEDs, and it shows red when the door is up and green when the door is down.
 
> > I think it cost me about US$40, but a quick Google search shows them from Chamberlain and LiftMaster for under $100. Since Sears and OSH are both going out of business, you might be able to find one at a clearance price.
 
> > Of course, this approach deprives you of the joy of building one for yourself.
 
I wired magnetic alarm switches on my garage doors, stole power for the circuit from the IR "eye" circuit, and ran it to bright blue LED's right inside my service door in the house. They are mounted in a low voltage box. Super bright and easy to see from across the whole lower level of the house.
John S <Sophi.2@invalid.org>: Sep 26 08:41AM -0500

On 9/23/2018 2:11 PM, OGER wrote:
> Suggestions please.
 
> Taking a driveway PIR xmtr to modify for other purposes with no actual
> internal mods.
 
The why did you post that you needed a schematic?
vvish838@gmail.com: Sep 25 09:23PM -0700

Solution Manual Electronic Principles (8th Ed., Albert Malvino, David Bates)
 
hello sir can i get this pdf
Cursitor Doom <curd@notformail.com>: Sep 26 12:00AM

On Mon, 24 Sep 2018 16:51:58 -0400, Neon John wrote:
 
 
> Hmmmm,
> John John DeArmond http://www.neon-john.com http://www.tnduction.com
> Tellico Plains, Occupied TN See website for email address
 
The threat posed by ever more powerful cheap lasers from China is
something the authorities appear to be overlooking.
 
And then there are all those folks designing their own viruses aided by
cheap PCR machines, also from China, that need looking into urgently.
 
 
 
 
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DLUNU <DecadentLinuxUserNumeroUno@DLU.org>: Sep 26 02:34AM

Cursitor Doom <curd@notformail.com> wrote in news:poei61$3kk$2@dont-
email.me:
 
> On Mon, 24 Sep 2018 16:51:58 -0400, Neon John wrote:
 
>> On a lighter note, I'm kicked around this question in my mind for
many
 
> The threat posed by ever more powerful cheap lasers from China is
> something the authorities appear to be overlooking.
 
> And then there are all those folks designing their own viruses aided
by
> cheap PCR machines, also from China, that need looking into urgently.
 
Consumers have access to consumer grade goods. AMD makes their new
Ryzen CPU for consumers with like 16 cores or such.
 
The stuff the pros and the supercomputer builders use have 32 cores
for 64 process threads. I will be building a waveform analyzer using
the 2990WX. They are like $1800 each. PCR machines? They don't
require much.

Remember "Sneakers"? The future is quantum decryption.
John-Del <ohger1s@gmail.com>: Sep 25 12:21PM -0700

On Monday, September 24, 2018 at 2:03:03 PM UTC-4, John-Del wrote:
 
> Other than the two missing signal tubes and knobs, it's complete.
 
> I will box it, but won't ship it. If you want it, you must issue a pick up at my business location.
 
> Email me at: delstv--AT-- A O L.c o m
 
 
Taken.
John Robertson <spam@flippers.com>: Sep 25 10:30AM -0700


>> Peter Wieck
>> Melrose Park, PA
 
> I'm sure 39 would be easier on the eyes than the flashier XXXIX.
 
It will be better next year - XV - and then XVI and so on.
 
Works for me! I like to exercise my few working brain cells whenever
possible.
 
And I got 19% in Latin back in grade 9! (private school - UCC, that
school and I didn't get along)
 
John :-#)#
 
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"pfjw@aol.com" <peterwieck33@gmail.com>: Sep 25 10:44AM -0700

On Tuesday, September 25, 2018 at 1:31:07 PM UTC-4, John Robertson wrote:
> >> Melrose Park, PA
 
> > I'm sure 39 would be easier on the eyes than the flashier XXXIX.
 
> It will be better next year - XV - and then XVI and so on.
 
XL, as it happens.
 
Si hoc legere scis nimium eruditionis habes
 
Peter Wieck
Melrose Park, PA
John Robertson <spam@flippers.com>: Sep 25 10:57AM -0700


> Si hoc legere scis nimium eruditionis habes
 
> Peter Wieck
> Melrose Park, PA
 
Now you know why I got only 19% in Latin!
 
L = 50
V = 5
 
sigh...
 
John ;-#)#
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