Not sure it has external bias points and trim pots just not sure if I need a different multi meter or if the fluke will work .What amp? Does it have 1 ohm resistors from cathode to ground for the power tubes? Class AB fixed bias?
If no 1 ohm resistors, do you have any octal bias tube adapters?
Going to need to answer my questions to know whether it will work. Not all amps are identical.Not sure it has external bias points and trim pots just not sure if I need a different multi meter or if the fluke will work .
It’s a fortin CaliGoing to need to answer my questions to know whether it will work. Not all amps are identical.
What that be on the dc setting of that particular fluke pictured or do I need a different multimeter ? Thanks !Fortin uses 1 ohm resistors to measure cathode current as a voltage on the output of the external bias points.
Put the negative lead in the black probe point in the center, and measure millivolts one at a time for each respective tube. The trim pots adjust each tube for the side you're measuring.
What that be on the dc setting of that particular fluke pictured or do I need a different multimeter ? Thanks !
anything with mv will be fine. Got to a pawnshop and buy usedSomeone want to recommend a affordable multimeter . I guess a 150$ fluke can’t do the job of an 8 $ multimeter
Right ? I was surprised too . Probably run to Home Depot for a 20$ oneanything with mv will be fine. Got to a pawnshop and buy used
i have had cheap and expensive ones for work.
For what you are doing, you just want the regular dc mv option. surprised that any fluke wouldn't have one.
if you do that, look on the packaging. It should tell you how accurate it is. The reason i say a pawn shop is you can get a better one for the same money, and avoid being in the same situation where you have it only accurate to one volt. You want one focused on dc if you do get one at homedepot. That will make sure that you are in the right ball park. I bought a really badass one from fluke for doing everything in the amp just incase i wanted to go down that rabbithole, but I still haven't jumped in.Right ? I was surprised too . Probably run to Home Depot for a 20$ one
$13 bucks off ebay Bro. You don't need a Fluke and decent Flukes are like $300.Someone want to recommend a affordable multimeter . I guess a 150$ fluke can’t do the job of an 8 $ multimeter
Yeah that’s part of the reason I’m wanting to experiment with it . It sounds good but I’m curious to roll some nos el 34s and bias it a little hotter . I don’t know if current draw has anything to do with actual temperature? But compared to my old wizards and my Matamp. The fortin is “warm” after about an hour of playing at moderate to low volume . After about 30 mins on the Matamp you could start a fireif you do that, look on the packaging. It should tell you how accurate it is. The reason i say a pawn shop is you can get a better one for the same money, and avoid being in the same situation where you have it only accurate to one volt. You want one focused on dc if you do get one at homedepot. That will make sure that you are in the right ball park. I bought a really badass one from fluke for doing everything in the amp just incase i wanted to go down that rabbithole, but I still haven't jumped in.
But remember, when you bias his amp, he goes for 32, you can turn that pot a bit more or less and listen to how it sounds after you get there. and make the decision there more than the number.