Project TIG

[Parm]

Yes, the mica insulators are good. You can get them rated plenty high enough for this application.

The gap between those heatsinks looks to be a couple of mm at most - a little bit of contamination (or backfed HF, unlikely but possible) could see them arcing nicely...

That perspex might be thick enough, and the fans might cool it enough, but perspex gets floppy when it gets hot - and those heatsinks are designed to radiate heat... A better choice imo would be pcb substrate which is insulating and much more heat resistant, but far less pretty.

I agree with your comments and observtaions, lets see what I can come up with. Gonna have a rummage around at my mates place and see what hes got that may be of use

 

[Parm]

Ok,

Some quite meaty diodes have arrived, a variety of heat sinks and cooling fans have been salvaged, along with a realy nice case. Had a lengthy consultation with my electronics genius mate and it wil be all systems once I drop the parts off to him

 

[skotl]

Ok,

Some quite meaty diodes have arrived, a variety of heat sinks and cooling fans have been salvaged, along with a realy nice case. Had a lengthy consultation with my electronics genius mate and it wil be all systems once I drop the parts off to him

Wait... I thought you were building it? That's a cop-out - I was wanting to see pictures of you with your hair on fire Oops - too late

 

[Parm]

Wait... I thought you were building it? That's a cop-out - I was wanting to see pictures of you with your hair on fire Oops - too late

Well i am building it, under the very close supervision of my electronics genius friend. If there's any hair to be burnt it will be his, he's got enough for both of us and some spare