GQ Electronics Technical Support Forum Active Users: / Visits Today:
Highest Active Users:
GQ Electronics Technical Support Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 GQ Electronics Forums
 2.GQ Geiger Muller Counter
 too many counts

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize:
UserName:
Password:
Format Mode:
Format: BoldItalicizedUnderlineStrikethrough Align LeftCenteredAlign Right Horizontal Rule Insert HyperlinkInsert EmailInsert Image Insert CodeInsert QuoteInsert List Spell Checker
   
Message:

* HTML is OFF
* Forum Code is ON
Smilies
Smile [:)] Big Smile [:D] Cool [8D] Blush [:I]
Tongue [:P] Evil [):] Wink [;)] Clown [:o)]
Black Eye [B)] Eight Ball [8] Frown [:(] Shy [8)]
Shocked [:0] Angry [:(!] Dead [xx(] Sleepy [|)]
Kisses [:X] Approve [^] Disapprove [V] Question [?]

   Insert an Image File
Check here to include your profile signature.
    

T O P I C    R E V I E W
franco Posted - 08/19/2011 : 12:09:06
Hi. I just got the kit with an SI-3BG tube. I fired it up and the thing is beeping like crazy. I Have the anode and cathode polarity right so I really hope my home isn't this radioactive. Any ideas? The voltage measured at the tube with the tube disconnected is about 178vdc. I haven't touched the potentiometer.
9   L A T E S T    R E P L I E S    (Newest First)
ENIGMA6 Posted - 09/23/2011 : 07:00:00
Sorry for the delay in replying. Yes, it is the SI-29BG.
ZLM Posted - 08/24/2011 : 15:13:05
There is no sensitivity spec. in those data.
atomic.dave Posted - 08/21/2011 : 16:50:03
How do you think it would compare to a Russian CI-180G? ebay has them for 17.00 bucks right now.

Recommended Working Voltage 360 - 420V
Initial Voltage 290 - 330V
Plateau Length 100V
Plateau Slope 0.1% / 1V
Interelectrode Capacitance 10pF
Load Resistance 5 - 10 MOhms
Working Temperature Range -50º +70º #1057;
Length 100mm
Diameter 18mm

quote:
Originally posted by ENIGMA6

I purchased one of the new full length glass tubes from GQ and have found it to be much more sensative than the BG-29 Russian tubes. I haven't played with the 6107 alpha window tube so I can't speak to it's sensativity compaired to the new GQ glass tube. Ted

ZLM Posted - 08/21/2011 : 11:14:54
ENIGMA6: The new GQ Full leng glass tube should be M4011 and the Russian tube should be SI-29BG right?
ENIGMA6 Posted - 08/21/2011 : 10:20:06
I purchased one of the new full length glass tubes from GQ and have found it to be much more sensative than the BG-29 Russian tubes. I haven't played with the 6107 alpha window tube so I can't speak to it's sensativity compaired to the new GQ glass tube. Ted
ZLM Posted - 08/20/2011 : 19:28:24
franco: Adjust voltage will change the sensitivity of the tube. The 178vdc is not a correct voltage. Do not check the voltage on the tube two ends. the correct test points are showing in the topic. Also, use a batter multimeter, you will get lower voltage if your multi-meter has low resistance.:


Odiez1 Posted - 08/19/2011 : 15:26:10
quote:
Originally posted by atomic.dave

Hey Odiez... you wanna sell one of your 6107s? Its the same as the 7616 LND, right? and did you have any problems with the higher voltage requirement?


I only have 1 of them, got if off ebay, [correction]and I thought the seller still had more.[/correction] I don't even know if it still works after my incident the other day... At any rate.. I do have 3-pin mini sockets for the CDV-700 probes/ GM tubes.
The 6107 is supposed to be Alpha sensitive, with the proper mod mentioned in another topic. It does look like the 7616, but I don't see Alpha sensitivity mentioned for the 7616. I'm looking at getting an SBM-20 (the most widely used GM tube, SOEKS, PRIPYAT for example). I think it's a bit more sensitive and may be more useful as a personal meter than the 6107, as it's not an end window tube...
As far as voltage, I believe most tubes can operate at lower than specification voltages. The GMC-080 I goes up to 520v, which seems sufficient for the GM tubes I'm seeing on ebay. The prices are another matter..
atomic.dave Posted - 08/19/2011 : 14:20:17
Hey Odiez... you wanna sell one of your 6107s? Its the same as the 7616 LND, right? and did you have any problems with the higher voltage requirement?
Odiez1 Posted - 08/19/2011 : 13:51:11
My "free" GM tube did the same thing. Didn't respond to a source either, just clicked away without reason.. It went faster as the voltage was turned up, and slower as it went down. Figured the "freeby" was no good.. :(
The kit works well with the 6107 and 6108 tubes I have.

GQ Electronics Technical Support Forum © Copyright since 2011 Go To Top Of Page
Generated in 0.05 sec. Snitz's Forums 2000