James Sweet wrote in
news:H1Mff.4042$NN2.312@trnddc02:

Rob wrote:
I recived a Lowrance Fish Lo-K-Tor "Little Green Box" model 505B from
a friend. I believe it is a 1960s or 1970s vintage fish finder
although I know very little about these. It appears to work, the
disk spins, but the flasher bulb is broken. It appears to be neon
bulb about 1 inch long. I was told by someone that it probably
operates at 600V. I did a search on DigiKey and so no good
replacement. I have also searched for schematics on these fish
finders on Google and found nothing. Does anyone know any details
about these bulbs? What operating voltage? Are there any practical
replacements?

Any insight would be greatly appreciated.

- Rob



Is the bulb one of those elongated versions of the NE-2? If so they
were sometimes used as the 1 "half digit" digit in nixie tube based
equipment.

Most neon glow lamps operate at around 90-150v through a suitable
series resistor to limit the current.


It could be an NE2 but one lead comes out at each end. The NE2s I have
seen on the web have both leads coming out on the same end. However,
something like that may work.

- Rob