no clue.... i'm personally looking for muses03 comparisons...if it,s up there with the discretes ....i would buy them but they don't take return on these it seems, at mouser the best is to try them (gently) and return them if not happy....

chinsettawong:   i think it s 30ma and 35ma. you can check on the website   marcus1: what is the voltage drop across the PSU s resistor R1?   what about adjusting p1 on the amp boards?

bidoux:    fast blow fuses cant tolerate every kind of in-rush current. i d try a slow blow fuse first mon ami

Quote: someone correct me if i m wrong,  but these are not needed for the hybrid build. those are the good ones.   http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=HS382-ND  

is it a good idea to put a switch on the secondary 6.3V of my power transformer in order to power up the tube heater before applying voltage 300V, so to increase the chances of longer tube lifetime? or if i want the delayed power up, heater should have it s own transformer?

yes i did 4 days ago and got the right ones.

hey guys. got a question:   i d like to have a single custom heatsink per hybrid board in my build for q11,12,13,14. i know q11,12 have to be grounded. do you think it ll be ok if i just ground this heatsink?

the first deisgn is pretty nice, but the pro and low jacks are too close to the ''exstata'' IMO

that seems ok. datasheet says the idss range is 6 to 50 ma. also when you test the jfet the gate must be conneced to the source. dont know if you have done that properly. just be careful not to blow them because it s your only quad from what i can tell.   also there is a very good website i...

nothing

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what is important is what the device look like not the envelopes.   take your time for pictures. if this amp turns out to be a success, some of us will still be here to help (i hope) in a couple years :)

unless there is an error on the PCB or the mje350 is not an mje 350, it should fit., even if the pins are not centered. a picture of the transistor next to the pads might enlighten.

when you rotate 180 degrees a mje350,340 the distance between the pins is not supposed to change. look to see if you have the right part at it s right place on the board. pics would help.

saves me a lot of reading.very appreciated