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  • Members: 1730
  • Category: Physics
  • Founded: Jul 17, 2003
  • Language: English
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Messages 59141 - 59172 of 59172   Oldest  |  < Older  |  Newer >  |  Newest
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59141 injuneer314159 Send Email Jun 16, 2013
12:50 pm
In a message dated 6/16/2013 6:58:22 A.M. Central Daylight Time, robertdruecker@... writes: ok, i have some money from a sale in my paypal account....
59142 Mr Men
somersetlife Send Email
Jun 16, 2013
1:08 pm
Should be in paypal account under transfer or similar...
59143 charlykarraz@...
charlykarraz Send Email
Jun 16, 2013
1:36 pm
They will send you a check if your acct is not linked to a bank acct. If it is , you can transfer into your acct. ... From: "Mr Men"...
59144 warrencrook Send Email Jun 16, 2013
4:23 pm
I would like to apologize if anyone is seeing this post a second time . I already made this post to the CDV 700 Club , But realized this group is more active...
59145 Robert Druecker
r.druecker Send Email
Jun 16, 2013
5:38 pm
To: GeigerCounterEnthusiasts@yahoogroups.com From: charlykarraz@... Date: Sun, 16 Jun 2013 06:36:06 -0700 Subject: Re: [GeigerCounterEnthusiasts] how to...
59146 K0FF Send Email Jun 16, 2013
5:39 pm
Hi. Always post unmodified CDV 700 type questions to the CDV700 group. If no answers to your questions there in time , then try here. Our thrust here is...
59147 warrencrook Send Email Jun 16, 2013
5:59 pm
Thank you for your reply .I will do so in the future....
59148 K0FF Send Email Jun 16, 2013
6:10 pm
Don't have that model's manual in the files, just the GSM10: http://www.qsl.net/k/k0ff//1Manuals/WB%20Johnson/GSM-10S%20MANUAL.pdf Looking at the video makes...
59149 Dmytry
dmytry_lavrov Send Email
Jun 16, 2013
7:07 pm
Wrote that over this weekend: http://www.youtube.com/watch?v=tYyf-VrPA0A The source: https://github.com/Dmytry/MicroGeiger I'm hoping to get some other...
59150 Andy Kirby
kirby.andy... Send Email
Jun 16, 2013
8:56 pm
Interesting I usually prefer flyback switchers using transformers (It is an isolation thing) but these last few inductor based boost circuits have been useful....
59151 P.
hardwaregeek Send Email
Jun 17, 2013
4:48 am
I cascaded two refrigeration units to drop the temperature of an aluminum plate to -40C and it was surrounded by a sponge saturated with alcohol. I had an...
59152 K0FF Send Email Jun 17, 2013
5:48 am
Are those mechanical refrig. or Peltier? Now try moving the charged particles with a magnet? Thanks Geo ... From: "P." <hardwaregeek@...> To:...
59153 robert8rpi Send Email Jun 17, 2013
6:33 am
This works much better if you put a sock over the end of the discharge cone. Cheaper to just buy dry ice pellets. Can be picked up from grocery stores in many...
59154 jp2cbyou Send Email Jun 17, 2013
8:23 am
You can see Gamma radiation using a cloud chamber? I don't believe I've ever observed that. But hey most don't believe that X rays are visible to the naked...
59155 Andy Kirby
kirby.andy... Send Email
Jun 17, 2013
11:49 am
There was one being setup for a demo Friday afternoon I got to have a look at. It was like a square terrapin tank with a lid and a black base marked off in...
59156 Andy Kirby
kirby.andy... Send Email
Jun 17, 2013
12:50 pm
Guys I wrote a little while ago about some folk I know getting an Ortec HPGe unit. The feedback and advice at the time was excellent. They have about got it...
59158 Mr Men
somersetlife Send Email
Jun 17, 2013
11:47 pm
Don't think I'll install russian alleged security patch on Android...
59159 Pavel Kirkovsky
asfdlhkjfhkl... Send Email
2:03 am
What is the best way to add an internal speaker to a standard metal-body Geiger counter? I have an Eberline E-120 that has the usual screw-type headphone...
59160 Robert Druecker
r.druecker Send Email
2:19 am
if a piezo unit works, you can glue it or velcro it. i've got one 700 with a hole in the side, piezo glued on the inside of the case against the hole. it of...
59161 Charles
dr_charlesmo... Send Email
3:15 am
While traveling recently I picked up an old (WWII aircraft?) altimeter at a flea market. It only has one "hand" and does not appear to have been opened or...
59162 Mr peter shintani
epkoncept Send Email
3:19 am
Don't know how well a piezo can shake  the metal case ? However, if you look hard there are small ~1" speaker with plastic cones, it should be water...
59163 David Griffith
cupricus Send Email
3:35 am
... [snip] ... The radiation from the radium causes the fluorescent material to break down such that it's no longer fluorescent. -- David Griffith ...
59164 M K
geek_marc Send Email
4:17 am
Basically, under the constant bombardment, the phosphor eventually degrades. Often it will not visibly glow at all. To get an idea what it might have looked...
59165 radchemstud Send Email 4:34 am
Thank you Geo for looking into this. I have disconnected the cable at the PCB but the meter behaves the same as before. I am still trying to get a hold of the...
59166 Robert Druecker
r.druecker Send Email
11:18 am
we at GCE and 700 club, have been using RS 273-0073 for years on all CDV 700s. They work fine. For about 2 bucks. all types of speakers have been tried, Some...
59167 epkoncept Send Email 1:26 pm
Dmytry: Got an odd question for you. Many Royer oscillators are push pull. I am curious if you experimented with a push pull configuration before you settled...
59169 Dmytry Lavrov
dmytry_lavrov Send Email
6:19 pm
It is such a low power case that I don't think there's much point in using push pull - essentially the circuit is working with single well separated pulses...
59170 T P
crnazvijezda Send Email
6:28 pm
Hi all, For sale Ludlum Model 3 in mint condition. I'll sell this baby because I need money for next projects and I have my other baby Eberline ;) (but no...
59171 C. ROBIN
nefariumx Send Email
7:03 pm
That sounds great. I am interested in seeing that kind of design driving a simple piezo clicker speaker + LED, maybe using the little transformers from...
59172 Dmytry Lavrov
dmytry_lavrov Send Email
9:28 pm
New prototype, and I added clicking to the program: http://www.youtube.com/watch?v=zNNiykPZbNY This version uses only 1 transistor, and like the previous one,...
Messages 59141 - 59172 of 59172   Oldest  |  < Older  |  Newer >  |  Newest
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