While I had the top off, I thought I may as well disrobe the rig completely and see what make her tick. Here are some photos of the underneath and front panel etc. The first picture shows the NICAD pack in place.
Notice that there's a small amount of space that could be used for mods or add-ons (hmmm, what else does this rig need though?). Here's a blow up of the mod space.
I went searching for other mod space - there's some between the front panel assembly and the diecast chassis...
...and some more between the CW filter and the chassis in the top compartment:
Here's the PA/Filter board (sorry about the focus). Real small PA (bottom of photo). Very neat.
I also took the front panel off for a look - it simply clips onto the chassis over four little "pips" next to the screws that hold the front edges of the top and bottom panels in place. If you take it apart please be VERY careful not to damage the front panel connector ribbon or connectors - they look fairly delicate!
Lastly, you may notice something a bit odd about the speaker mounting. If you look carefully, you will see that there are several grille holes that the speaker doesn't actually cover. The general concensus is that this improves the audio quality of the RX. A quick test I did to move it shows that it DOES sound better mounted like this.