The power on panel light in my preamp has gone. It's an encapsulated 'bulb' of some type inside a non-replaceable 5/16th diameter threaded chromed shell with retaining nut behind the panel. It is fed directly from a 40 volt DC supply line. Can someone please suggest either a direct 40V replacement (I have no idea what kind of light this is) or would it be okay to use a LED and resistor in place of the original. Looked at Mouser's site and I'm plainly baffled but that's not anything new. Thanks, Mike.
If you can't track down a similar bulb, you could probably use a LED with a 1/2W 3900 ohm resistor. I'm a little confused by the "non-replaceable" shell description.
Hi sofaspud (great handle) ... many many thanks for the info and for giving me specifics which is a GREAT help. The 'shell' looks like an ordinary chrome plated through panel bulb carrier (with nut behind) where you could replace a blown bulb, but instead it's filled with hard yellowish resin, sort of encapsulated if you get what I mean. I thought it's be a simple and quick bulb change but oh well 🙁 🙁 Best regards, Mike.
OK thanks. I have a better idea of it. If the resin can't be drilled out, a replacement chrome shell can likely be found to fit your chosen LED.
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