Search found 1047 matches

by mightyohm
Thu Jun 02, 2022 3:05 pm
Forum: Geiger Counter
Topic: Sending it to (near) space
Replies: 1
Views: 369

Re: Sending it to (near) space

Check out this post: https://mightyohm.com/forum/viewtopic.php?t=3333 Some teams have run into issues at very high altitudes, possibly stemming from corona discharge of the HV portions of the circuit. The tube circuit is very high impedance so it is sensitive to this. The power supply is also somewh...
by mightyohm
Fri May 20, 2022 2:04 pm
Forum: Geiger Counter
Topic: DAN’S WI-FI AND OLED UPGRADE FOR THE MIGHTYOHM GEIGER COUNTER KIT
Replies: 5
Views: 1421

Re: DAN’S WI-FI AND OLED UPGRADE FOR THE MIGHTYOHM GEIGER COUNTER KIT

Sorry folks. It would probably be easier to use Dan's project as inspiration to re-create this project from scratch at this point.
by mightyohm
Tue Mar 29, 2022 11:57 am
Forum: Geiger Counter
Topic: Adjustment HV for SBM20
Replies: 3
Views: 8027

Re: Adjustment HV for SBM20

Nice, thanks for the link!
by mightyohm
Wed Mar 23, 2022 1:39 pm
Forum: Geiger Counter
Topic: Mightyohm Geiger Counter & Raspberry Pi
Replies: 14
Views: 43035

Re: Mightyohm Geiger Counter & Raspberry Pi

Burny4600 wrote:
Mon Feb 28, 2022 7:26 am
Are there also connections for FHEM?

Chris
What is FHEM?
by mightyohm
Wed Mar 23, 2022 1:35 pm
Forum: Geiger Counter
Topic: DAN’S WI-FI AND OLED UPGRADE FOR THE MIGHTYOHM GEIGER COUNTER KIT
Replies: 5
Views: 1421

Re: DAN’S WI-FI AND OLED UPGRADE FOR THE MIGHTYOHM GEIGER COUNTER KIT

Hrm, this looks like a libraries issue - probably the libraries have changed over time and the old code no longer builds. Have you tried reaching out to Dan Watson?

http://syncchannel.blogspot.com/2016/01 ... tyohm.html
by mightyohm
Wed Mar 23, 2022 1:33 pm
Forum: Geiger Counter
Topic: Opposite day: Ticking too fast!?
Replies: 6
Views: 714

Re: Opposite day: Ticking too fast!?

Glad you got it sorted out. Enjoy your kit!
by mightyohm
Wed Mar 23, 2022 1:25 pm
Forum: Geiger Counter
Topic: BOM with manufacturer part numbers
Replies: 1
Views: 279

Re: BOM with manufacturer part numbers

I've never released a full BOM for a few reasons, but primarily to discourage blatant low-effort ripoffs of the kit. The other big reason is that in over ten years no one has ever asked for it! :D The existing BOM actually has a lot of good info and I think there's only a few places where you have t...
by mightyohm
Tue Mar 15, 2022 10:51 am
Forum: Geiger Counter
Topic: VR1 - getting ticks at full counter clockwise ?
Replies: 3
Views: 555

Re: VR1 - getting ticks at full counter clockwise ?

You are very welcome. Let me know if you have any more questions!
Enjoy your kit! :D
by mightyohm
Sun Mar 13, 2022 8:34 am
Forum: Geiger Counter
Topic: VR1 - getting ticks at full counter clockwise ?
Replies: 3
Views: 555

Re: VR1 - getting ticks at full counter clockwise ?

Hans, Glad you are enjoying your kit! It's not unusual to hear clicks with VR1 fully counterclockwise. In this case I would set it somewhere between 9 and 12 o'clock. VR1 sets the high voltage. You can use a 1 gigaohm resistor and a DMM to check and set the voltage to 400V. Make sure your DMM has a ...
by mightyohm
Mon Mar 07, 2022 1:33 pm
Forum: Geiger Counter
Topic: Opposite day: Ticking too fast!?
Replies: 6
Views: 714

Re: Opposite day: Ticking too fast!?

OK, that is very helpful, thanks. It sounds like your Geiger tube is bad. If the tube came with your kit, you can send an email to support@mightyohm.com and I'll send a replacement.