Gcollier said:I know this is total overkill but hey why not.I made sure that the regulators could be heatsinked, in case you have rather high voltage on your secondaries.
I think it's just what the doctor ordered! 🙂 Sweeet!
BTW I got my LaserJet 2100TN for $10 yesterday. 😀 It needed a new toner cartridge which I get for $25.00 $35 for a laser printer 🙂 can't imagine I would have found much better deal. 🙂
Now I just need for my copper laminate to get here and I can burn some of these babies!
😎
Russ White said:
I think it's just what the doctor ordered! 🙂 Sweeet!
BTW I got my LaserJet 2100TN for $10 yesterday. 😀 It needed a new toner cartridge which I get for $25.00 $35 for a laser printer 🙂 can't imagine I would have found much better deal. 🙂
Now I just need for my copper laminate to get here and I can burn some of these babies!
😎
Russ, I still haven't had a chance to etch the 2nd prreamp design. I hope to be able to tonight or tomorrow. I was away most of this weekend.
My first PCB design ever. Please don't laugh too hard. 🙂
It is a simple stereo preamp with lots of options. No buffer, because for preamp duties (except for maybe some inverted GCs) I have never found one necessary.
Input welcome. 🙂
It is a simple stereo preamp with lots of options. No buffer, because for preamp duties (except for maybe some inverted GCs) I have never found one necessary.
Input welcome. 🙂
An externally hosted image should be here but it was not working when we last tested it.
No need to laugh, it looks pretty good to me🙂 Much better than the P2P thing I started with😀 See the start of this thread.
You are right about the buffer; in most setups its not needed at all😉 Keep practicing😎
What a nice layout! I didnt figure it could look like that🙂 Great job🙂 Could you post a PDF, G? I would like to etch a few of those boards😉
Steen😎
Thanks Steenoe,
Here is phase 2 of tweeking. 🙂
Here is phase 2 of tweeking. 🙂
An externally hosted image should be here but it was not working when we last tested it.
steenoe said:
Russ, that is a very nice simple design. You should move your out connections down a bit away from the supply lines though.
Steen,
I can't save to PDF on this machine but you can have my Eagle file for the board. I don't have a schematic, but it is exactly the same as what is on Nuuk's site. Watch the pinouts on the transistors. If you do this as a 2 layer board you can use the top layer to heatsink your voltage regulators. I haven't put this together yet as I have had no free time lately, and I'll be gone all next week. Maybe tonight
😉
Gcollier said:
Here is an update with the signal out header moved away from power traces. 🙂
An externally hosted image should be here but it was not working when we last tested it.
Wow Russ, you are working fast😉 Just like me, sometimes, I think
You could add a set of pads for a bigger input cap, just in case someone is just as crazy as I am😀 I prefer a 4,7uF at least😉
Steen😎
steenoe said:Wow Russ, you are working fast😉 Just like me, sometimes, I think
You could add a set of pads for a bigger input cap, just in case someone is just as crazy as I am😀 I prefer a 4,7uF at least😉
Steen😎
He he he, I am on a roll. 😉
How is this?
An externally hosted image should be here but it was not working when we last tested it.
Hmmm didnt I hear that somewhere😀 😀 😀 As a matter of fact, you are😉 That board is pretty nice to me🙂 Big input caps, thats it.
Steen😎
steenoe said:
Are the pads big enough now? Or shouyld they be bigger? What size where you looking for. 🙂
Edit: I am referring to C1B and C2B
What leg spacing is it? Most of the time, its possible to squeeze in a bigger cap, than the board was made for😉
Steen.
BTW.
Yep, I realised that🙂
I had to do the arethmetics😀 0,6x2,54=15mm. That should do, although my preferred BC cap is 22mm. Have to do the arethmetics again😀
That would equal this in inches, (when do you people learn to do it meters??) 22/2,54= 0,86 inches I guess. But the 0,6 will do fine I think. You would have trouble with that and, dont have to do it excactly to my purposes😉 The board is just fine as it is🙂
Steen😎
Ok one more tweek before I etch this baby. 😀
fixed image
An externally hosted image should be here but it was not working when we last tested it.
fixed image
Russ, thats a hit😉 Are your designations equal to PMA's? And please, zip up the Eagle files and post them, if you care😉 I would like to etch a board like that🙂 Since not being one, needing the buffer😉 Ohhh, and a BOM please🙂 In that way, everyone can play along🙂 If that is not asking too much. You are rollin'😀 😀
Steen😎
Great, gives you some flexibility🙂
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