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-   -   JFET's ready for abuse (http://www.diyaudio.com/forums/pass-labs/139253-jfets-ready-abuse.html)

Magura 24th February 2009 08:42 PM

JFET's ready for abuse
 
2 Attachment(s)
So, how do we get around keeping these little critters cool?

A respectable copper base seems to do the trick.

A little DIY reflow soldering and some machining later, I got this:


Magura :)

Magura 24th February 2009 08:44 PM

2 Attachment(s)
And a while later, it had multiplied :D


Magura :)

Zen Mod 24th February 2009 08:47 PM

Zahlen , bitte ?

Magura 24th February 2009 08:50 PM

Quote:

Originally posted by Zen Mod
Zahlen , bitte ?
If there is enough interest, I will consider the possibility to make a larger run of them.

So far I have just made 18, and from those, I have a need for 8 of right now, so that doesn't leave many for the greedy boys :xeye:


Magura :)

Zen Mod 24th February 2009 09:16 PM

Quote:

Originally posted by Magura


If there is enough interest, I will consider the possibility to make a larger run of them.

So far I have just made 18, and from those, I have a need for 8 of right now, so that doesn't leave many for the greedy boys :xeye:


Magura :)


well - you always know where you can send two pairs of these nasty blocks ;)

(just joking , I'll made my own )

describe your way of soldering little critters to blocks , without escape of precious white smoke ?

Magura 24th February 2009 09:22 PM

Quote:

Originally posted by Zen Mod


describe your way of soldering little critters to blocks , without escape of precious white smoke ?


A good temperature controlled oven, ramp up to 250C, hold temperature for 30 seconds, let the parts cool off in free air.

Using fluss un the copper part.


Magura :)

Zen Mod 24th February 2009 09:33 PM

Quote:

Originally posted by Magura


.....
Using fluss un the copper part.


Magura :)


rephrase that ;

I'm lousy thinkin' on Danish :clown:

flux-ed solder , smd solder ..... what ?

Magura 24th February 2009 09:36 PM

Quote:

Originally posted by Zen Mod



rephrase that ;

I'm lousy thinkin' on Danish :clown:

flux-ed solder , smd solder ..... what ?


Just regular fluxed solder. Adding flux on the copper part prior to heating.


Magura :)

Zen Mod 24th February 2009 09:40 PM

Quote:

Originally posted by Magura



....... Adding flux on the copper part prior to heating.


Magura :)


calophone good enough ?

edit:

btw. pcbs finished ?

Magura 24th February 2009 09:56 PM

Quote:

Originally posted by Zen Mod



calophone good enough ?

edit:

btw. pcbs finished ?


Calophone?


I have seen no mail from you regarding PCB since last weekend??


Magura :)


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