AVR-Chat

Realy i don't know what temp my solder go, but i used
it a lot of years to solder and repair a los of SMD
PCB, i used it to solder McU and a lot of SMD shift
registers memories and others.

I'm using a Good TQ-77, this solder is about 20Watts
and have a pushbutton to get more than 200W, is full
insolated from the 220Vac line becose the heater is
encapsuled in a ceramic cilinder, you can use it with
the equipment turned on and nothing hapend.

The only problem with this is the manufacturer go down
the quality of the ceramic end isn't the quality few
years ago and if you use all the day in a couple of
month the end broken.

This is a over temp problem, i use it with a simple
diode in serial and the temp go a little down and
fixed it.

i'm tired of use it to repair pcb's, all in smd, i
have a friend who use it and i dont know how he does,
but can desolder and solder a Sony CCD ic controler,
this device have 9x9 mm and and 20 legs for each
side!!!

In the lab we use it, the live cicle for the ceramic
end is about six month using it five days a week with
more than ten hours connecter for each day.

Best Regards
Frank-.


 --- Ralph Hilton <ralph@ralphhilton.org> escribió: 
> 
> On Wed, 12 Jan 2005 15:47:14 -0500 Dave VanHorn
> <dvanhorn@dvanhorn.org> wrote:
> 
> >>
> >>Looks disgusting!
> >>
> >>I just tried setting my iron to 500F and I'm sure
> it woud create lots of bad
> >>joints as standard solder only melts at 460F.
> >>
> >>I usually use around 650F for soldering - it gives
> very fast reliable joints.
> >>
> >>
> >>--
> >>Ralph Hilton
> >>http://www.ralphhilton.org
> >>C-Meter: http://www.cmeter.org
> >>FZAOINT http://www.fzaoint.net
> >
> >Freezoner AND AVR freak!  How bizarre!
> 
> Perhaps even unique:-)
> 
> >Also: Don't you use 63/37 eutectic solder? I
> thought everyone did.
> 
> I used to - I don't actually notice much difference.
> Mostly I use 0.46mm 60/40
> and it melts instantly. Soon it gets worse with lead
> free solder regulations
> coming in.
> 
> >Do I see an AVR based E-Meter in the offing? 
> 
> Indeed so! 
> 
> Dual ATmega32 processors, PLED display, LTC2440 A/D
> converter, DS1302 RTC,
> optically isolated RS232 interface to display on a
> PC and lots of other goodies.
> I think it'll be ready in about 4 weeks.
> --
> Ralph Hilton
> http://www.ralphhilton.org
> C-Meter: http://www.cmeter.org
> FZAOINT http://www.fzaoint.net
> 
> 
>  
> Yahoo! Groups Links
> 
> 
>     AVR-Chat-unsubscribe@yahoogroups.com
> 
>  
> 
> 
> 
>  

__________________________________________________
Correo Yahoo!
Espacio para todos tus mensajes, antivirus y antispam ¡gratis! 
¡Abrí tu cuenta ya! - http://correo.yahoo.com.ar