Stabist said:hehe - I've realized from where my confusionSilly me
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Ofcourse - I should be more careful with datasheets where transistor is drawn 3 views(ground plan, side view, ...)
Geee, feel sooooo stupid![]()
right now
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I always draw notes on paper in my usuall habit-legs to me,face down,if necessary.
hehe-I made mistakes more than once ,before I make that habit
steenoe said:
Stabist, you are not alone on that oneYes the BC's have different pinout than those on Russ's board.
Happy building.
Steen![]()
Hehe - nice to hear I'm not alone in it
Gee ... I've done a p2p placement of components for stereo NS10 circuitry (but not solder it yet) - man - it's small
choky said:
I always draw notes on paper in my usuall habit-legs to me,face down,if necessary.
hehe-I made mistakes more than once ,before I make that habit
hehe - the mistake I made was - I've done notes and sketches of placement of components - from top view (and marked legs) - and then opened Philips's datasheet - where ofcourse legs are marked as looking it from bottom; then opened another datasheet (with 3D drawing of transistor) - and ofcourse now I had "different markings" hehe
![smash :smash: :smash:](https://files.diyaudio.com/forums/images/smilies/smash.gif)
![smash :smash: :smash:](https://files.diyaudio.com/forums/images/smilies/smash.gif)
![angel :angel: :angel:](https://files.diyaudio.com/forums/images/smilies/angel.gif)
Are you going for the shunt reg? I hope you are indeed, just to see if it works for somebody else. (I had a little trouble with buzz as you remember if you read the whole threadMust build similar sized PSU too
![xeye :xeye: :xeye:](https://files.diyaudio.com/forums/images/smilies/xeye.gif)
Steen
steenoe said:
Are you going for the shunt reg? I hope you are indeed, just to see if it works for somebody else. (I had a little trouble with buzz as you remember if you read the whole thread) You can keep a shunt reg pretty small as you can see on the pics I posted earlier. The sound of it is just great
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Steen![]()
lalalalalala........
I don't have buzzzzzzzz
lalalalalala.......
![dead :dead: :dead:](https://files.diyaudio.com/forums/images/smilies/dead.gif)
![devil_r :devilr: :devilr:](https://files.diyaudio.com/forums/images/smilies/devil.gif)
![clown :clown: :clown:](https://files.diyaudio.com/forums/images/smilies/clown.gif)
Did you calculate the resistor values for the 431 device? I am also curious how you would connect that device to the negative side.just half
Steen
choky said:
hehe
you can't
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Hehe - do you wanna bet
![devil_r :devilr: :devilr:](https://files.diyaudio.com/forums/images/smilies/devil.gif)
steenoe said:
Are you going for the shunt reg? I hope you are indeed, just to see if it works for somebody else. (I had a little trouble with buzz as you remember if you read the whole thread) You can keep a shunt reg pretty small as you can see on the pics I posted earlier. The sound of it is just great
![]()
I'll try it out with shunt reg probably in next version/attempt - because right now what I have at hand is a bunch of LM317/337 ...
Which schematic did you use for your regulator?
choky said:just half
not tried yet
series reg part (left part from dotted line) shared between channels
317 CCS and shunt for each channel on chared pcb (reg+audio)
edit- 50mA per stage
Hmm - as a start I wanted to build similar version as your series reg part (double series regulator) with additional power resistors at the output to have constant load ...
but now - this seems tempty
Btw - trimer - if decided not to use it - do I just simply connect emittor of Q1 directly to -V?
Which schematic did you use for your regulator?
I used this except I didnt use darlingtons (yet) I used BD139/BD140, and didnt use the diodes at the output. I tried with more capacitance also (2200uf's) and some other variations.
http://www.diyaudio.com/forums/showthread.php?postid=794628#post794628
If Choky's doesnt buzz, maybe its my perfboard thats bad
I better get some new ones
Here is a pic:
http://www.diyaudio.com/forums/showthread.php?postid=785841#post785841
Steen
steenoe said:Did you calculate the resistor values for the 431 device? I am also curious how you would connect that device to the negative side.
Steen![]()
didn't calculated yet resistors
connecting?
like zenner-
exactly the same,just final resistor chaaaaaaaange place
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![wave2 :wave2: :wave2:](https://files.diyaudio.com/forums/images/smilies/wave2.gif)
![crazy :crazy: :crazy:](https://files.diyaudio.com/forums/images/smilies/crazy.gif)
![emoticon :emoticon: :emoticon:](https://files.diyaudio.com/forums/images/smilies/emoticon.gif)
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tip for steen:
minus is always minus
plus is always plus
what you'll call ground
that's your choice
if you are good at it
components will agree with your choice
![devil_r :devilr: :devilr:](https://files.diyaudio.com/forums/images/smilies/devil.gif)
mods!
where's mine "reinventing the wheel" smiley??
Thats the kind of guidance I need allrighttip for steen:
Steen
I would like to see a working schematicconnecting?
Well, I want to discuss the main supply a little more. I just went through some boxes of (big surprise!!) electronic stuff and found this. Take a look at the pic. Isnt that a mains filter of some sort?
Could I try that in front of the trafo? Ofcourse I could try, I know that
Steen
Attachments
steenoe said:Here is another from the rearside. As you can see on the tracks, it was made for heavy dutyI would appreciate it if someone could tune in on this.
Steen![]()
bingo!
nice one
side with three legs- one is line,middle is ground,other side is neutral (in my country line and neutral are interchangeable,meaning that wall outlets and device plugs are not .....hm...phased-if that is proper word.
other side-with two legs -is output to load ;one line,other neutral
try it,immediately
tomorrow I'll try to fiddle with negative 431 and post
in a meantime ,one example
:
http://www.diyaudio.com/forums/attachment.php?s=&postid=766245&stamp=1131941055
Thanks Chokytry it,immediately
Steen
Thanks AnalogairJep, it's a Mains Filter.
Steen
Edit. Now I see, (I think) You edited while I posted
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