Why do I need two 9Volt batteries in my Fisher 1236x2 when one seems enough.

[Tommygunn]

Hi all,
I just tried one 9V battery in each compartment, in turn, in my Fisher 1236x2, and it appears to work perfectly okay.
Has anyone tried this long term to see if two 9V batteries are actually necessary for normal performance?

Would it actually be a case of the usable longevity being halved because I'm using one less battery?

 

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[Montauk3]

Guess why shoes are sold in pairs. The maker designed the machine that way for a reason, why try to out guess them?
Have fun and good luck.

 

[Tommygunn]

I tried it because I can . It appears to work in the short term so why not query it?

 

[Shortstack]

I tried it because I can . It appears to work in the short term so why not query it?

The engineer designed it that way because HE can. Now, why 2 instead of 1, I believe is because they are hooked up in parallel to give a longer cycle of use. They give a long lived source of current.

Now, MY question is, "Why is water wet?"

 

[Tommygunn]

Brilliant, thanks.

 

[Ant]

Because the machine only uses 7 or so volts to operate, after that the performance stars to tail off. The set-up uses 18 volts with a voltage regulator that regulates the voltage to the 7 volt that is needed. See, that was easy. Anymore questions?

 

[dahut]

OOOOH OOOOH Professor Ant, I have a question!

How do I make the preset ground balance on the 1236-X2 into a manual GB?