Spike,
I was refering to a separate instrument TAS Indicator, or the EFIS type TAS indication, both of which are driven by the same information. The "spin it yourself" bezel type gizmos are kind of Mickey Mouse in my opinion, although better than nothing. This is basically the TAS function of an E-6B flight computer integrated into the airspeed indicator.
I want the EFIS type indicator which is part of the Pilots Flight Display featuring IAS, TAS, Wind speed and direction, and G/S.
Cheers, Pete