I have to ask, is the wet cell a really rare item? I do have one here but the innards are dried-up and look like they have been that way for many years. It might be possible to re-cell the container with modern sealed lead-acid types but getting the container open without seriously damaging it might be impossible.
MODERATOR NOTE: I wouldn't call the 4 volt wet cell a rare item but is a scarce item today. The really rare TBY item is the original drycell battery. I have only heard of one being found. Pictures of that drycell are in our photos section. I seem to recall that drycell along with a TBY-8 sold for about $600.00 in 2009. Good luck on re-celling the original 4 volt battery box. It shouldn't be too hard to re-cell the 4 volt battery metal box with modern cells. If you want to cut into the original wetcell plastic case the job will require a lot of time and luck.
--- In email@example.com, "military.radioman" <samhevener@...> wrote:
> A TBY-7 with the 4 volt original power supply was just posted on eBay. The 4 volt wetcell battery is not included in the auction. The opening price is $195.00. Condition looks good. 330647310670