Hi!Welcome to my DIY audio forum.CheersPer-Anders Sjöström
Started by Keljian, June 13, 2005, 04:54:06 PM
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Quote from: Keljianjust a small update, I'm planning on a case similar to this one : http://www.briangt.com/gallery/nigc-srmcgee building it from scratch using carbon fiber, blackwood, aluminum and a few other things.. should come out really nice when it's done
Quote from: perandersLooks good but you should use D44H11 OR BD139, not both! This is an option for TO126 or TO220 transistors. The same thing applies for the other transistors, TO92 or SOT23 types.Notice also C9, should not be mounted.I adwise you read the circuit description so you will see what you should mount and what you should omit. There are some options in the design which you must be aware of.If you won't use the SENSE function you must put some tin on J1 and J2.
Quote from: perandersR9 and R8 isn't right. The gain forumla is Vout = Vref*((R8/R9)+1)I see that you have chosen AD797. I have not yet tested it with this opamp but from what I know the regulator gets a bit more sensitive against capacitive load. AD825 is much better in this sense. Still if you have at least 50 mm wire to the load it will probably work alright.
Quote from: perandersDo you also have 6.9 volts across R9? If not the regulator isn't working properly. Remember also 33 volts in.
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