Pro Audio Design Forum

Wayne, thank you for being so polite in your replies. A few rookie mistakes but thanks for the explanations. Will update pics when I finish the front panel and other set of transformers. Do you think there will be any benefit running direct in bypasing the 1246? Was going to try that with the unbala...

Getting there, passes audio and sounds rather good!!!!!! Have -6dB bypassing the transformers, unity gain using the 1:2 steel transformers. Waiting to hear back from David re purchasing some CMOB's. The lowest I can get the idle current is about 157mV on both channels with the 1K trimpot. Using the ...

Thank you for the quick replies.

I have Fairchild, 139 & 140 parts luckily.

Will post some pics when it gets further along.

Hi Guys, finally getting around to assembling my DCAO and wondered what the minimum thickness for a homemade heatsink is? I can find 20mm x 3mm x 1metre locally for $5 and figured I could make a 6mm thickness by bolting two bits together with heatsink compound in between. Planning on using it as an ...