there is very certanily a condenser coil and compressor and cooling fans 
in the bottom half of my TU78, with hoses carrying coolant (apprently) to 
and from the tape unit itself... *grin*

isildur

On Fri, 25 May 2001, Geoff Roberts wrote:
> Eh???  My TA/TU 78 pair were power hogs to be sure, but they are not
> liquid cooled.
> The TA79 is virtually identical but it isn't either.  I think you may be
> confusing all the air/vaccuum tubing with cooling, it isn't, everthing
> on these is air driven, even the motors run on compressed air.
> 
> > looks cool but you dont want to run it!
> 
> Probably the best description ever of a Tx78.  I did actually run mine
> when I first got it, looks very nifty.
> I still have 2 TA79's, which were slightly better, but same basic
> design.  One day I might get adventurous and
> fire it up, but the Tu81+ is lots easier.....
> 
> 250mb actually. (mine can do that density anyway)

ok, maybe that was for 1600 bpi tapes.. i dont remember now. 
plus, heavy 9track use is a bit before my time.. 
isildur