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Registered Member #1262
Joined: Fri Jan 25 2008, 05:22AM
Location: Maryland, USA
Posts: 451
Havn't had much time for HV with college admissions, but I still have a cool pic. I hit the 99th percentile on the ACT reasoning test with a composite score of 32 (same as ~2200 on the SAT). This (december) sitting of the test was supposed to have the hardest math and science sections ever to boot... Edit: Yeah, I made the part of the graph where the curve becomes a flat line Oh yeah, and beat anon01's 31 hehe </brag>
Registered Member #1497
Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
Today I went out to a store to buy some parts for a project, out of curiosity I asked how much the vacuum tubes in these cardboard boxes on the floor were; the reply was "$1"!!
So I bought 5 tubes and 5 matching sockets with screw flanges, I'm going to mount these to a wooden plank, stain the wood and uplight with LED's for a retro look... keep in mind the tubes will never see real use again, but better than ending up in the dump.
I also managed to look up the datasheets for the tubes and get the filaments warmed up
Registered Member #1107
Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
Just scored this out of the junk yard today. It cost about $5 bucks but there was more stuff attached to it. Anyway there are 12 40n60 igbt's on there. They have about 30 more of them so i am probably going to get a couple more. They were mounted on a mega heatsink that weighed about 30 lbs but i am going to get some money back for it so i can buy more
Registered Member #1497
Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
Thats a cool board with lots of IGBT's, what was it for?
And as for a 30lb heatsink, those things are rare, you could probably do well with reselling them to any 4hv members needing monster heatsinks for IGBT mods....
Registered Member #1107
Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
hmmmmm that's a really good point. It's not just a heatsink but a actual complete aluminum enclosure. It has a nice compartment that is large inough for 2 cm300's and 2 smaller compartments for a controller board and other stuff. Perhaps i will start a thread in the sale and trade section for these things.
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