Fusor Forums

you could also use stainless steel weld pickle gel
this is a mix of nitric and HF acids in a convienient gel form
HF 10 - 30 % nitric around 40%
all welding supply places carry this
also very important for cleaning vacuum hardware after welding

The consumer glass etchants contain a fluoride salt, not true acid.

Yeah, I'm probably staying away from the F.

Quick image of a control box for the cheap Spellman supply ("Christmas Comes Early").

Two pots for voltage and current, one gauge (change between V and I with a switch), and a power switch with a missile cover in lieu of a Big Red Button. Most of the parts for this came from Halted.



(Why are electronic project enclosures so expensive almost everywhere?)

As for cost of those boxes - they are up their but most are well made so I expect it.

One reason I bought a useless (for fusion) large power supply (30 kV, 250 ma but positive!) was I got it for the cabinet and internal parts (meters, filtering system and cables.) The unit was cheap and so well worth the cost for just its components and large shielded case. A good idea to keep in mind when searching ebay; also, I was lucky - the company selling it was within a 100 miles so no shipping costs; otherwise, might not have been such a deal (but boy, was that thing heavy!)

Yeah, similarly I bought a spot welder (?) For a few dollars to House my variac, and got a high current xformer in the bargain.

Not really much to see here, just parts for the future Modular Omni-purpose Ion Source (Thermionic).