Joekkel wrote:i've posted some pics on facebook and have linked you on a picture, feel free to add the pics to the jlm-site. just two last questions
i have installed a 2A slowblow fuse. i think that's too low, because it occasionally blows up during start-up. what fuse-value would you recommend for a 300va-trafo? and is it normal, that the amp-heatsink is getting hot, even on low to no signal within an hour of use? i mean, i still can touch it without problems. i would guess around 50-60 degree celsius.
many regards, joachim
Cool thanks for taking the time. I will go check out the photos.
Transformer fuse size is more related to power on surge of the transformer type. But yes you are on the correct path.
Smallest slow blow fuse that doesn't blow after a few power ups is the best. So try 3A Slow blow and see how it goes.
Yes heatsink temp sounds correct as each amp has 50mA idle current so adds up to about the temp you mention so is not a problem.