Spectrum 187 Plasma Cutter

[mmurray39]

Tiggin alum with glass shield should it look like this

[mmurray39]

Umm ok maid decision bran new xp45 in box 2200out door gotta grab acetylene too expensive my base not kids tho cheap labour

[mmurray39]

Ouou yeah miller spectrum gotta look at in tenn spectrum 1000. 400 dollar. Gotta kid out of boy scouting fri just reason to go tenn. Both might be a stretch. Spectrum 100 big boy

[mmurray39]

Tv

[mmurray39]

Soz had 2875 outta my league horror stories on 627 375 to small

[mmurray39]

I got me a new girlfriend she's cute an viscous like it

[mmurray39]

Ok bk to 625 hit it with power had power all over but dead picked up an oscilloscope by accident played with it never have an experience with one got it to do squiggly wave forms somehow so in the months before have changed the jfets the igbts so was (not under power) just fishing really found some really bad solder joint. Loose not tight. Fixable get to q4 fet 1 line dead so ordered some more traced dead line downstream seems alright got wave ill change it out when it arrives an see if that makes a difference all other circits seem okie dokie then I can have a comparison ole 625 against 45xp memories a terrible thing I think the miller was a cardiac the hyper s don't get that maybe world changed anyhow back to wasting on parts check back in later

[mmurray39]

New ole stock new 2 me clean point gap runs like a champ

[mmurray39]

K $100 old miller against 2500$hypertherm 45xp.

[mmurray39]

1st pick $100 miller spectrum 700 next 2 2500$ hyperthern45xp(now the 700 weight at least 250 lbs hypertherm bout 60)

[mmurray39]

Houston we have a problem. oh sorry took time to get here. Well changed all that I could hit the power switch no pops no bangs but now smoke lots of it. Fried. R71. And r89. Was wondering if anybody would know what they where before they became toast R71 just says dale-11 I think not sure on that R89 color code is b b bl bl yeah any idea of why this occurred

[jjohn76]

Where are they on the board? Is this still the Spectrum 625? You can always call Miller Tech and give them the assembly number and part number (R71 R89) to get the specs.

[mmurray39]

Ok will do that call them last time I really dident know anything. Not like I do now and yes still the 625 board oh I forgot to mention popped a 100up. 50v capasitor as well. Everything cheap to replace just time for shipping and loose train of thought. Was wondering if anyone knew the wattage maybe 1 8 watt?? The resistors are really small. Thxs

[jjohn76]

Are those near the gate drives?

[mmurray39]