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50w Single-Ended BAF2015 Schade Enabled
50w Single-Ended BAF2015 Schade Enabled
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Old 4th May 2016, 02:49 PM   #11
Soundhappy is offline Soundhappy  France
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Quote:
Originally Posted by vdi_nenna View Post
Hi Everyone,

I've been interested in how a high powered, single-ended amp might sound for some time. I suppose a large Aleph could solve that mystery. The BAF2015 SE 50w has a couple of nice twists, one being it uses Schade feedback to give the MOSFET triode like curves. It's also a really simple circuit.

I suppose it's worth while thread to start, unless one was started already.
I searched and went back a few pages, but didn't see anything, so here it is.

Attached is a screenshot of the schematic with its creator. In the shadows...

I'll crate a wiki once things get rolling so that FAQ can be answered.

Hope to hear from interested people.

Vince
@ Diyers

You can find and download original correct schematic of hockey puck
Schade Feedback BAF 2015 by this link :


BAF Slides Nelson Pass | Audiohobby.com

Thanks Mr Pass and Mr Rothacher

Greetings
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Old 4th May 2016, 02:53 PM   #12
vdi_nenna is offline vdi_nenna  United States
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Thanks Soundhappy!
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Old 4th May 2016, 03:00 PM   #13
Soundhappy is offline Soundhappy  France
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Fantastic Vdi_nenna

IXFN140N20P IXYS | Mouser

http://www.mouser.com/ds/2/205/99245-64964.pdf

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Old 4th May 2016, 08:30 PM   #14
WalterW is offline WalterW  Netherlands
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50w Single-Ended BAF2015 Schade Enabled
interesting vdi_nenna, subscribed.
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Old 4th May 2016, 10:01 PM   #15
MASantos is offline MASantos  Portugal
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I think this project is a great candidate to forced cooling. 200x200 heatsink with a 200mm silent computer fan should give you a lot of dissipation for each hockey puck!

In a 5U case you could add 2 fans to each side of the heatsink with some creative mounting.
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Old 4th May 2016, 10:58 PM   #16
vdi_nenna is offline vdi_nenna  United States
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There are some very quiet fans today. Fan controllers help too. You using just exhaust fans or fans blowing over and out of the chassis?
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Old 4th May 2016, 11:52 PM   #17
sippy is online now sippy  United Kingdom
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Old 5th May 2016, 12:26 AM   #18
Superstrand is offline Superstrand  United States
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If I recall correctly from listening to the lecture, Papa Pass accidentally referred to this as a "sh*t" amp, which I got a huge chuckle from. Anyway, I started working up a pcb as I have been wanting to try this since I heard the lecture. I'll post it here when finished, but will need my work thoroughly checked, especially the orientation of the 4N37, as I suffer from dyslexia (as well as a mild form of stupidity). The JT-112 would be mounted remotely (off the pcb).
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Old 5th May 2016, 12:29 AM   #19
vdi_nenna is offline vdi_nenna  United States
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Very cool. Thanks!

Ive never used a 4n37. I'd have to start with for a while.
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Old 5th May 2016, 12:32 AM   #20
2 picoDumbs is offline 2 picoDumbs  Australia
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I'm still undecided whether I'll do a nice raw hack job or do a pcb.
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