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Say: "My D-I"
I only have one DI box, and needed more, so I decided to build my own. It has a 1/4in. input, balanced XLR output, and switches for ground lift, -30dB pad and phase flip.
The heavy duty metal box was $2 at a thrift store. The rest of the parts were pulled from other (free) items I found (e.g. The transformer is pulled from a broken sound mixing console I got free on Craigslist).
From a Fluorescent Mineral Society meeting (door prize) comes this 2.75" wide specimen.
Contains:
Chalcedony (FL Green >UVabc)
Shown under UVc light.
Key:
WL = White light (halogen + LED)
FL = Fluoresces
PHOS = Phosporescent
UVa = 368nm (LW), UVb = 311nm (MW), UVc = 254nm (SW)
'>' = "stimulated by:", '!' = "bright", '~' = "dim"
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18 Watt Triple Output UV lamp from Polman Minerals - Way Too Cool UV lamps