[sdiy] JRC4558DX Question

[Bob Weigel]

And..wear safety glasses :-).  This isn't quite on par with my 
unqualified 'let er rip' statement re: discharging capacitors 
(forgetting that in diy synth projects some people like Harry  use ones 
capabale of turning the screwdriver into plasma), BUT...in 
troubleshooting one amp I did get pegged in the head with the plastic 
from a TO-220 device once.  The user complained of some funny distortion 
and as soon as I got it open and powered it up and got my head 
positioned right BLAMMO!  hehe.  Another time I got shot in the side by 
a TO-3 transitor, a brand new one that had a defect where something 
shorted inside and melted down part of the case and as pressure built up 
inside it made a nice tiny calibre weapon :-)  Barely ding the skin 
after going through my clothing but....man..you could indeed put an eye 
out with that so watch it. -Bob

Tim Parkhurst wrote:

>On Nov 9, 2007 9:30 PM, mike ruberto <somnium7 at gmail.com> wrote:
>  
>
>>I cannot find a datasheet that mentions the DX version of this chip.
>>Searching Google brings up about 700000 results for people modding
>>some distortion pedal. What I need to know is if the DX version has a
>>higher supply voltage rating than the other versions. Anybody have an
>>idea?
>>
>>Thanks
>>
>>M. A. Ruberto
>>    
>>
>
>Power it up with a variable power supply and crank the voltage up
>until it goes PHHHHHTT???
>(then note the voltage where it went ka-blooie!)
>
>
>Tim (there's probably a reason I'm not in Quality Control) Servo
>  
>