A second set of eyes on the schematics are handy!
All resistors are 1206, but I'll make R17 a 2512 if it's dissipating that much current. I missed the cap and Q12 swap on the latest schematic.
I think there's a bug in the latest version of Diptrace. It keeps picking different libraries for a couple of the transistors like Q1, Q5 and Q6. I've fixed that a couple times already. I need to sort that out before anything goes to the board house.
Are there any other suggestions for dual input transistors? The one I've chosen works great but it's SC-70, top heavy device that likes to flip over in the oven. I'd like to find something that's easier to hand solder.
All resistors are 1206, but I'll make R17 a 2512 if it's dissipating that much current. I missed the cap and Q12 swap on the latest schematic.
I think there's a bug in the latest version of Diptrace. It keeps picking different libraries for a couple of the transistors like Q1, Q5 and Q6. I've fixed that a couple times already. I need to sort that out before anything goes to the board house.
Are there any other suggestions for dual input transistors? The one I've chosen works great but it's SC-70, top heavy device that likes to flip over in the oven. I'd like to find something that's easier to hand solder.
I'm not sure what U2 actually draws, but rule of thumb is 10mA for an op amp. I just went with what Pete had on his schematic. I think it might be a good idea to move the +/-12V regulation to the output board to free up some space for the through hole version. I can use larger devices there. Lots of room under the input board.
I am going to baseline sprint 6.0 and I will go all the way. boss man want's it'
Could you , as a 2'nd party to assure that I don't make mistakes that I made on the
current version ??
My time is finite , I will give this forum my ultimate before this happens.
OS
I sold bossman on something like the NS-OPS.
I won't copy any of Vz's stuff , I'll sprint it. All through-hole.
If you could just be a 2'nd party to any error I make in this endeavor.
You are the layout master. I have studied Vzaudio.
I am impressed. Really.
PS - I'm not doing any any of the non-switching , just MY EF3.
OS
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Hi everyone. I'm late to the party again!
Just a thought,
One of the choices I was making while beginning assembly my V2.4 Badger was to use a thermal bus bar across the OPS transistors. It wasn't because of efficiency, or necessity. It was so I could have somewhere to mount Q13.
The 5U deluxe UMS chassis, uses 2 lengths of heatsink, with a join directly in the center. so the options are to either use a thermal bar, and mount Q13 to it, or drill a new hole and tap it out(but it will have to be offset from center, reducing accuracy I'd assume).
Just a thought. I'd guess a few other builders will use the 5U.
Just a thought,
One of the choices I was making while beginning assembly my V2.4 Badger was to use a thermal bus bar across the OPS transistors. It wasn't because of efficiency, or necessity. It was so I could have somewhere to mount Q13.
The 5U deluxe UMS chassis, uses 2 lengths of heatsink, with a join directly in the center. so the options are to either use a thermal bar, and mount Q13 to it, or drill a new hole and tap it out(but it will have to be offset from center, reducing accuracy I'd assume).
Just a thought. I'd guess a few other builders will use the 5U.