Beltron Bulbs?

[wb2mep]

A few months ago I bought a Beltron CRT tester/rejuvinator off Flea-Bay.
It was in OK shape, but it looked like it got a lot of use by its original
owner. It also had a musty smell to it, like it had bee stored in a
damp environment. When I plugged it in, I got a nice Snap as the
plug made contact with the outlet, so either this unit has some big
caps in its power supply, or something may be shorted, so I immediately
unplugged it and put it in the closet until I had some time to open it up
and see what's inside.

There's a big Hamfest coming to Orlando in 2 weeks, so I figured it would
be a good time to see what parts I might need for the Beltron.
Out of curiosity, I pulled the bulbs to see what type they were,
and all 3 of the Cleaning Lamps were open. Really open - like no
trace of the filaments left. Either there is a fault in the unit that
took out the bulbs (one of the socket harnesses was wrapped with
electrical tape, so could have been a short at one time), or the bulbs
were the wrong type. The bulbs were #49, which is an odd type.
Can anyone with a working Beltron check what type bulbs are used
in the cleaning lamps, so I can try to track some down? Thanks-
Mike