This is what I have gleaned from the Tandberg specialists over in the Old Country: Bear in mind that the differences are minor, and that the "A" postfix may be considered somewhat of a marketing ploy - a bit like car manufacturer slap on a piece of grill chrome from one model year to another. Also remember that these are opinions and not facts - at $3,000 MSRP in Norway (at current exchange rates), these were rare then and are even rarer now.
- Capstan axle was matt on the A (shiny on the non-A)
- The A came with remote control capability (non-A optional)
- The A was developed by the post-bankruptcy Tandberg (the non-A by the original Tandberg Radiofabrikk).
- Improved electronic components
- Different button finish (matt vs. shiny) and LED lights.
I don't know what you paid for your 3014A, but they command a hefty $1,000 in good condition in the home country, FYI.
Hope this helps.
Regards,