Anyone have a source for the small LCD voltmeters, about 1" x 2". I also have seen them in a 1"-1.5" round configuration.

I need a couple of them for one of my new planes and for my new power box panel.


Thanks---Tom

Tom have you looked at the I4C Products voltmeter, they are about the size your are talking about. I will look for their web address later and post it for you.

Sung

Here ya go:

http://www.i4cproducts.com/c-volt.htm

Gordon

Jameco have'em for $12.95 :

All of them:
http://www.jameco.com/cgi-bin/ncomme...ch=panel+meter

One of them:
http://www.jameco.com/cgi-bin/ncomme...nbr=501&ctgys=

Thanks---just what I needed.

Tom

This are very nice and good, but watch out they do not have a built-in load tester. Kelly

Since they stay in the aircraft all the time, and are active the whole time the radio is turned on, your whole radio system is the built-in load tester.

Regs,
Gordon

LOL! Check out the Jameco PDF file for the digital meter:

http://www.jameco.com/Jameco/Products/ProdCT/p037.pdf

"Digital Penal Meter" !!!!!!

Man that's gotta hurt! Is this a new FAA medical requirement? If so I guess they can have my license!

Antony

Note that according to the spec. sheets, the Jameco ones require a separate 9V battery to supply power to the display...

Bob

Mine reads 10.7

I'm just glad that it's a voltmeter. If it had been a pressure gauge, they would probably also have managed to do a typo on PSI.

Gordon

Yes, I have noticed that the external battery is required on the cheaper Jameco's.

I will probably go with that one for my power box, since I have the voltage available, but will stick with the I4C one for the planes, since I don't want to stick in another battery.

I have one in my current flying Bandit. It just did not have a label on who made it, which is why I posted originally. It looks exactly like the I4C unit. It came in a D/F plane I bought a couple of years ago.

They sure are pricey though.

Thanks again for the help

Tom

http://www.jameco.com/Jameco/Products/ProdDS/108388.pdf

The full spec reads 7-11 V @ 1 mA

A 9V battery will last quite a while at 1mA. If the battery is objectionable, then step down/up the DC supply per requirements.

A 3 kOhm resistor will drop a 12V battery down to 9V if the 1 mA draw is correct.

The problem is in an aircraft flight system where the battery voltage is either 4.8V or 6V nominally. The i4cproducts ones designed for aircraft mounting probably have a DC-DC converter in them to supply the power to the display, or they have a lower voltage display which costs more than the Jameco one. Either way, that probably explains the higher cost of the i4cproducts units.

Bob