SMT soldering, I know there's many who like ersa soldering workstations, if I soldered on daily basis for profit ersa i-con-v4000aicx would be a very fine station for such use. Weller good too imo. Weller wr 3000M might do it, no personal exp. with that one. "Who hasn't used a Weller"
If you got the technique under control, and are serious about electronics. A good solder station is mandatory or, You can design your own circuit's and the pcb factory solder for you the proto.
Reality is that the through hole components are going to
dissappear, it's quite amazing they are around from technology standpoint. Repairs needs them still.
And there's other reasons certainly.
What soldering pencil like hot air SMT are you using xrk?
I sometimes wonder why big boards, so much space few components & golden vias combo vs a smd pcb.
As I know designers went smd decades ago, schools, academys teaching electronics
So why are we here? Have schools replaced their general 2year basic transistors configuration testcircuits, banana power circuits?
I’m using a fairly inexpensive hot air gun from China. It has very precise computer controlled heat settings and is smart in that it turns on when you pick it up and turns off when you put it down. Heats up to 300C in 10 seconds. Gentle flow that doesn’t t blow SMDs out of place once they are set on paste. I also have a nice temp controlled soldering iron (Sealody brand) with Hakko compatible tips. Both make a decent soldering station for about $100. I used a Weller for the longest time and still have it for my alternate iron but prefer ergonomics and auto temp reduction when not being used of the Sealody. I just ordered an iExtruder precision solder paste dispenser that should make things even easier and more precise. These are true work tools as is O-scope and Fluke meters.
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Weldings for first frame are just about done. Everything seems to fit inside, so now it's time to cut some aluminium plates inside. It really takes a lot of work to be done, but when alu sheets are cut, actual building can begin 🙂 summer vacation starts at second week of july, then I have more time to do this.
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Juntuin,
Your case looks really awesome! I’ve started to plan a case of my own for the BB, but this amplifier is proving to be a challenge to fit all the necessary add-ons for a noise free and reliable class A monster. Your “multi level” idea is key for this amplifier not to take up a huge amount of shelf space.
Cheers,
Vunce
Your case looks really awesome! I’ve started to plan a case of my own for the BB, but this amplifier is proving to be a challenge to fit all the necessary add-ons for a noise free and reliable class A monster. Your “multi level” idea is key for this amplifier not to take up a huge amount of shelf space.
Cheers,
Vunce
Hi Vunce, and thanks. B. B. is a little bit of a challenge to get in case! Maybe X have a point, modified PC case could be way to go. I'm dying to see what kinda enclosures you guys end up with, since no one other has not shown their plans for B. B.? 🙂
Juntuin and Wtl,
I like the look of your systems! Both very unconventional and that’s exactly how the B.B. amp is. You can’t make it like a standard box with two passive fins on either side. It’s more PC than audio.
I like the look of your systems! Both very unconventional and that’s exactly how the B.B. amp is. You can’t make it like a standard box with two passive fins on either side. It’s more PC than audio.
Some beautiful examples of the ALPHA here!
I have almost completed my ALPHA and will shortly post my photos.
HD
I have almost completed my ALPHA and will shortly post my photos.
HD
Well aksa your doing the right thing.
I took a few beers today, it's been 2 1/2 years since.
It's amazing what you can do with exp. a few does not have a real bad influence with my bosch 18V blue, aluminum drilling.
But in the name of wisdom, a few not ok if no tolerance. More is a no no way to go.
So I'm quiting now taken 1.25l beer max. 4.5%.
I took a few beers today, it's been 2 1/2 years since.
It's amazing what you can do with exp. a few does not have a real bad influence with my bosch 18V blue, aluminum drilling.
But in the name of wisdom, a few not ok if no tolerance. More is a no no way to go.
So I'm quiting now taken 1.25l beer max. 4.5%.
....and another psu to try with the Alpha BB.
I decided to try another capMx, this one is: Simplified MrEvil / PMI Capacitance Multiplier by Jason Kuetemann. I had very good results using the Allo CM board with my Big MoFo amplifier so, when I found out the Allo was a positive rail only copy of this circuit I decided to try the full version for my BB.
So far the results are much better than the first capMx I tried. I have it adjusted to drop only 1.5vdc and the heat generated from the MosFets is very manageable. The Wakefield 272 heatsinks are reading 55°C. Im using off-board bridge rectifiers instead of T0-220 on-board rectifiers which is a nice option this board incorporated.
I decided to try another capMx, this one is: Simplified MrEvil / PMI Capacitance Multiplier by Jason Kuetemann. I had very good results using the Allo CM board with my Big MoFo amplifier so, when I found out the Allo was a positive rail only copy of this circuit I decided to try the full version for my BB.
So far the results are much better than the first capMx I tried. I have it adjusted to drop only 1.5vdc and the heat generated from the MosFets is very manageable. The Wakefield 272 heatsinks are reading 55°C. Im using off-board bridge rectifiers instead of T0-220 on-board rectifiers which is a nice option this board incorporated.
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Nice Vunce. Did you have boards made or did you get them way back when? I have the gerbers from the Simplified Dr. Evil thread and was thinking about having some boards made if there isn't a source already. Maybe others would be interested as well???
Thanks JW,
I had a small batch made up. I wish I knew about these earlier for my ALPHA20.
There is no doubt using these is very cost effective and a space saver compared to a CRCLC type psu. I just need more listening time to be convinced 🙂
I had a small batch made up. I wish I knew about these earlier for my ALPHA20.
There is no doubt using these is very cost effective and a space saver compared to a CRCLC type psu. I just need more listening time to be convinced 🙂
I have a set with parts I bought from PMI back in the days but never even unwrapped them. Maybe I'll try them.