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4hv.org :: Forums :: General Chatting
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Post Your Cool Pic Here!

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aonomus
Thu Dec 25 2008, 08:49AM
aonomus Registered Member #1497 Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
Well this is my version of the rising earth photo...

IMG 1109
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Backyard Skunkworks
Mon Dec 29 2008, 07:28PM
Backyard Skunkworks 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). Link2 cheesey
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 cheesey Link2
Oh yeah, and beat anon01's 31 hehe
</brag>

1230578924 1262 FT6000 Act32
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aonomus
Mon Dec 29 2008, 08:08PM
aonomus 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.

IMG 1147

IMG 1148

IMG 1150

IMG 1152

I also managed to look up the datasheets for the tubes and get the filaments warmed up
1157composite
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Mads Barnkob
Mon Dec 29 2008, 11:26PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
This is pretty much a slap with the clove aimed at Dr. Spark :D

What we see here is the pure essence of vintage, a Danish Nimbus ( Link2 ) from 1937 along side the dual 811A VTTC
1230593193 1403 FT6000 Img 1731

1230593193 1403 FT6000 Img 1733
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teslacoolguy
Tue Dec 30 2008, 12:31AM
teslacoolguy 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.
1230596937 1107 FT6000 Igbts
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 cheesey
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aonomus
Tue Dec 30 2008, 01:16AM
aonomus 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....
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teslacoolguy
Tue Dec 30 2008, 03:01AM
teslacoolguy 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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aonomus
Tue Dec 30 2008, 03:14AM
aonomus Registered Member #1497 Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
Pics of the heatsink would be nice probably, just for me to drool over (no money atm)
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LithiumLord
Tue Dec 30 2008, 11:53AM
LithiumLord Registered Member #1739 Joined: Fri Oct 03 2008, 10:05AM
Location: Moscow, Russia
Posts: 261
My new case I grabbed yesterday for TC. Stainless steel!
Th 291220081415
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Robert2
Tue Dec 30 2008, 04:54PM
Robert2 Registered Member #1773 Joined: Tue Oct 21 2008, 06:56PM
Location: Poland
Posts: 93
85 1230655591 Thumb

48 1230655646 Thumb

My 2KW SGTC with 2 mot's, i must make 360nF capacitor for a 12KV max but i have 4,2KV max from mot's.


And my garden :

15 1230655775 Thumb
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