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LAN_403

Conundrum

Sun Oct 23 2011, 06:51PM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061

Hi all.

Thought I'd share with you my current work on mini Geiger counters...

So far the plan here (tested, mostly works) is to use two HV852's and a PIC 10F200 to power a
small SBM21 tube from a PC sound card's microphone input.

these chips only draw 500uA at low clocks

EDIT:- Doesen't work as well as I thought, its closer to 2mA at any sensible load.
Might work better with a single HV852 running a C/W multiplier.

Any ideas?
I have a few spare chips here, if anyon has a use.

-A

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