Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Cheers Nigel , I must of been having a dense moment.
A good source of information is to be found in
the SCUBA diving web pages , in particular
CLOSED CIRCUIT REBREATHERS (CCR)
both modern and homebuilt versions require
oxygen sensors to control the breathing gas mixture. **broken link removed**
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