First off, thanks to Papa. He taught me everything I know (still much to learn)
Second, thanks to everyone regarding advice with PCB layout. I definitely learnt a few things (copper pour), as well as picked up some things that needed changing (pad sizes etc). This probably won't be the last iteration of the pcb, but it's a start.
I'll try and get one channel built ASAP
Second, thanks to everyone regarding advice with PCB layout. I definitely learnt a few things (copper pour), as well as picked up some things that needed changing (pad sizes etc). This probably won't be the last iteration of the pcb, but it's a start.
I'll try and get one channel built ASAP
Ok here is the finished product.
Made a few changes to the board, probably make some more changes with layout and copper pours with future updates.
Made a few changes to the board, probably make some more changes with layout and copper pours with future updates.
As soon as I have put a square wave through it and confirmed gate resistance values, then I'll post full schematic.
Maybe just a quick statement of what it is? Did a search on "eSCAPEd" and got a bunch of "escaped" posts. Could do a "goat" search, but I'm guessing all of those posts would be about Bill Buckner.
It's my design so you won't find it anywhere. Actually it's a modified version of one of Papa's amps but all design decisions are mine using his topology. Neary impossible to design something completely original these days. I have many more ideas though which I will be building.
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Started matching Lateral Mosfets.
The first three N channel mosfets measured, match amazing well. Bloody beautiful
The first three N channel mosfets measured, match amazing well. Bloody beautiful
ECX10N20 and ECX10P20
Exicon Lateral MOSFETS - Our Product Range
I purchase a tube of each from the same manufacturing run.
Really impressed with how good they are matching so far. I've never seen any other devices that have matched this well.
I haven't started measuring the P channel parts yet.
Exicon Lateral MOSFETS - Our Product Range
I purchase a tube of each from the same manufacturing run.
Really impressed with how good they are matching so far. I've never seen any other devices that have matched this well.
I haven't started measuring the P channel parts yet.
Ah, I think I have seen those exact FETs released by at least three different 'manufacturers' with Exicon being one of them. Will have to dig around to see if I can find the others...
They seem nice enough.
They seem nice enough.
Yeah I think the BUZ and ALFET series made by Semelab are most likely the same.
TT electronics Semelab Limited - Magnatec Datasheets
Magnatec. ALFET Lateral MOSFETs
Check these suckers out.
http://products.semelab-tt.com/pdf/magnatec/BUZ900X4.pdf
I might throw these ones at an F6 circuit.
And here is the P channel version.
http://products.semelab-tt.com/pdf/magnatec/BUZ905X4.pdf
I might put an order in for Christmas. 😀
http://products.semelab-tt.com/pdf/magnatec/BUZ900X4.pdf
I might throw these ones at an F6 circuit.
And here is the P channel version.
http://products.semelab-tt.com/pdf/magnatec/BUZ905X4.pdf
I might put an order in for Christmas. 😀
All nice parts from the look of them. I have a bunch of the Semelab, and if
you can put up with the lower transconductance (and in this sandbox you
certainly can) then they all have lots of uses.
😎
Very interesting. The diagram on page 2 suggests each SOT227 device is four MOSFETs in parallel. Guess that makes sense with the 'x4' attached to the end of the part number. Laterals again, I suppose, since they are specified for audio use?
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