😎
I am using the mounting hole for the TO-3P package as a PCB mount, there is a fender washer under the PCB itself atop the stand-off to help spread the load. This PCB could use a few more mounting holes in general…
I am using the mounting hole for the TO-3P package as a PCB mount, there is a fender washer under the PCB itself atop the stand-off to help spread the load. This PCB could use a few more mounting holes in general…
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take care that big washers you put underneath the pcbs are not covering bottom traces
remark about max washer size is for top, most likely you can't use that size beneath
and, do not count on stop-lacquer to maintain isolation, if there is no continuity between trace and washer
remark about max washer size is for top, most likely you can't use that size beneath
and, do not count on stop-lacquer to maintain isolation, if there is no continuity between trace and washer
The washers under the PCB are not touching copper, that was the first thing I looked at, and the washers are sized appropriately.
That said, a layer of Kapton on the washer would not be a bad idea, as belt & suspenders…
That said, a layer of Kapton on the washer would not be a bad idea, as belt & suspenders…
this one is fast and dirty, comparing to those 6L6's intended for general public, mainly speaking of lack of isolation in some specific areas ..........
I’m not done yet… Currently sitting in far-off place for work for a few more days.
I got the amp running on the bench just before I left, there’s some final clean-up and housekeeping to do, will absolutely try making some steel or mu-metal shields for the signal transformers, as playing around with some metal plates a was making a notable difference, and once it’s all done and happy I might even remove some spades and solder them.
…but probaby not. 😎
I got the amp running on the bench just before I left, there’s some final clean-up and housekeeping to do, will absolutely try making some steel or mu-metal shields for the signal transformers, as playing around with some metal plates a was making a notable difference, and once it’s all done and happy I might even remove some spades and solder them.
…but probaby not. 😎
Still work-in-progress, need to sort out some grounding and tidy a few things up.
Initial impressions are very, very good.
Initial impressions are very, very good.
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sorry, what these speakers are?
it rings B&W to me, good but asking for mucho powah
if not, just ignore me
it rings B&W to me, good but asking for mucho powah
if not, just ignore me
(1) The amp puts out 10 wpc... huh? How loud will the B&W go with that? I think that's what ZM means. My SissySIT drives the 90 db/w ANs very well but not loud, it's more of very low noise and dynamic range counting from a useful 65db.
(2) Looking at the audio rack... try the WiiM Ultra, use it as an ethernet/Wifi to USB bridge into your DAC. It sounds really good. I ended up getting three of them.
(3) That's not a Technics!
(4) I Robot... got that. Excellent.
(2) Looking at the audio rack... try the WiiM Ultra, use it as an ethernet/Wifi to USB bridge into your DAC. It sounds really good. I ended up getting three of them.
(3) That's not a Technics!
(4) I Robot... got that. Excellent.