Frantone Glacier - current drawn

[Alper Yilmaz]

Does anybody know how many mA's the Frantone Glacier draws? The 24VDC power supply shows 100mA and puts more than 33V; but I could not find the actual draw of the pedal...

[Taylor Livingston]

Based on a 24 volt supply I'd guess this uses an AD633 four quadrant multiplier, so 6ma there, the oscillator has a sine so probably something like an XR8038 function generator, max 20ma from that. I have heard that Frantone used relay bypass on some pedals, add maybe 20-30ma.

So probably 45-60ma or so. Of course, if you can get the info for sure it would be better. But short of confirmation this is a decent estimate. I do believe Fran's around so you might be able to just email her.

[Jared Lash]

I'm continually amazed at Taylor's electronics knowledge and I'm guessing his approximation will end up being very close.

That said, he's right that emailing Fran is your best bet. I've always gotten quick and informative responses from her.

BTW, I really dig a number of Frantone pedals, including the Glacier.

[Alper Yilmaz]

Hi Taylor,

Thanks for your post; I see some really cool engineering approach in your estimate! Last time I dealt with electronics was when I took the basic circuit design back in college in 1988, so even though I have some idea, I am clueless about actual implementation.

Unfortunately, I had written to Fran, but she mentioned I should check the power supply that came with the unit which is 100mA; yet the power supply would always have some ample current capacity anyway. So, 100mA sounded a bit too much to me for the unit.

The reason I am asking for this is simply as follows... I am planning to power the Glacier using a Voodoo Lab Power 2 Plus. In order to reach the 24V that the unit requires, I would need to use a voltage coupler cable and switching both of the outputs of the supply to 12V which reduces the current to 60mA max instead of the standard 100mA at 9V. I am just trying to figure out if 60mA from the Voodoo Lab would be enough to feed the Glacier.

Thanks again. Best,

Alper

Originally Posted by Taylor Livingston

Based on a 24 volt supply I'd guess this uses an AD633 four quadrant multiplier, so 6ma there, the oscillator has a sine so probably something like an XR8038 function generator, max 20ma from that. I have heard that Frantone used relay bypass on some pedals, add maybe 20-30ma.

So probably 45-60ma or so. Of course, if you can get the info for sure it would be better. But short of confirmation this is a decent estimate. I do believe Fran's around so you might be able to just email her.