Reduce voltage of DC adapter without reducing current

[suputnic]

That's the answer. Simply put a reversed Zener diode in series as John
Fields said in his original post. I had tried this option (see above),
but I hadn't taken into account the voltage drop under load when
picking a Zener. Thanks all for your help.

 

[ehsjr]

Thank God!

I can't believe I had to read this far down before somebody mentioned
using a 3v regulator ))

You didn't. It's mentioned in my reply of 6/6.
Even has a schematic diagram. Mentioned again
6/7 by Jason Betts, and again by him 6/8.

Maybe stuff is missing from your news group reader.

Ed

 

[Electromotive Guru]

Phil Allisonwrote

** The heater is powered by gas - as the OP has now revealed

The two batteries supply power to the ( electronic) spark igniter

Ah my mistake. I kinda wondered about that lo