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JohnR
Beautiful day today. Ocean pool was pretty clean, nice, did a few extra laps.
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Comments
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Can't wait to hear the PSEs!
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Cool, having a listen now
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Well... you know, the basic circuit of the BCF is so simple that I can't stop wondering about doing a point-to-point version. Over half the board is space for coupling caps, which are easily accommodated on terminal blocks in a PtP build... And t…
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With cathode bypass caps, measuring around 52 ohms output impedance. So that's all right. Sounds fine, no bad capacitor effects that I notice... however it's become a bit hummy and buzzy all of a sudden. Could just be I moved something in this rats …
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One thing I hadn't quite realized fully until now is that the circuit has a gain of -6dB. Output impedance measures around 116 ohms. Still to try cathode bypass caps, which will reduce it to ~60.
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Hah hah, both channels. Maybe I'll put it in, it's only another switch. I have a bag of 4-pole switches somewhere. I think... Yep, the PCB has a star ground on it so I'll wire all the connection to that. Having a transformer in the middle helps t…
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Seano said: The mechanical noise of the board will go away once you fix it down. Speaking of which...don't you have some plywood lying around? Really? Yeah I have plywood.... I'll give it a try! Here's a layout that might work.. haven…
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Has anyone here ever used anything with a phase invert switch? Wondering if I should put that in while I'm at it.
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Not that complicated, let's try that again
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I guess it could be a little bit more complicated with some benefits:
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I decided to go with "a little way" as I remembered the goal of getting this finished. Simpler build that way. Overall schematic diagram:
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A little way (won't even be that much): All the way:
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Will probably fit in here.... The valves will have to stick out the top. What do you think, a little way or all the way?
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Heh heh
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Transformer volume control (the hard way) Maybe the DAC isn't too bad after all, the TOSLINK input seems better than the USB. Might as well use it, and add a switch for an external input. Could try tweaking it a bit.... also some things still…
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What do they say, keep one hand behind your back? Yes, I need to find a chassis to put it in.... Didn't want to until hearing how it sounds though.... I'm pretty sure that DAC board won't be going in, the USB DAC in the earlier photo does sound b…
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Thanks Gordon. What transformer is it? Should be easy to get going once you get it. Love Broskie's kits, think I'll get the phono stage next. Today I hooked up a DAC board from hifimediy, but to be honest I'm not all that happy. Perhaps I need to…
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Hah hah Ok, here it is up and running. Wait, let me explain Could be proud papa syndrome but it sounds very good. Bass... treble... blah blah. Seriously, not able to pick anything wrong with it at all, better than the headphone out on…