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In the Forum: Melquiades Amplifier
In the Thread: Bias help

Post Subject: A fuse.Posted by Romy the Cat on: 4/27/2013

Hm, that is a good question. I honestly do not remember. The 6ch Super Melquiades has 7A fuse but I have no memory about the fuse I used in single channels amp. During the assembly I used the lamp fuse – that is given but in the final version I just do nor remember. I do think that you will figure out, start from 3A and go ups if it feels too little. Make sure that you use slow blow fuses – this is very important for this design. The amp has input choked and then the current rushes in for the first time you will have a huge current draw. The slow-blow fuse will be holding it.

I still have a pair of full range, single channels Melquiades and I think I need to plug them in into a watt meter and to wee what current they drown normally. It is possible to calculate it but easy to measure. The amps in the basement and they are very heavy. If you truly need I can do it but I do not think that it shall be so critical for you at this moment. As you make the map, measure the current and use a fuse of 1.5-2.0 times more. I would anticipate that during a normal operation it shall consume around 150-170W that would make it 1.4A, so the 2.5A-3A fuse might do. I however do not remember the actual numbers.

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