[Milsurplus] TU-75 transmitting unit

[WA5CAB at cs.com]

I have a BC-1158-A somewhere.  Haven't looked at it in years.

According to notes in the database, TU-75-A was Middle Marker in BC-400 
(RC-20).  Anyone know the frequencies of the Inner and Outer Markers?

I don't actually have the TM but from some late 40's Signal Corps FM 21-6 I 
have the manual as TM 11-2607 for BC-400-H dated December 1944.

In a message dated 8/17/2006 12:57:04 PM Central Daylight Time, 
cosmoline at aa4rm.ba-watch.org writes: 
> Has anyone seen one?
> 
> Hint: three 815s &used in glide bomb tx called BC-1158... along with
> another 815
>         plate modulator
> 
> Have hunch TU-75 meant 75mcs Transmitting Unit.  Not 'tuning unit.'
> 
> Now 75 mcs is home base for marker beacons.  But which marker beacon tx??
> 
> TU-75 nearby dated Mar. 45
> 
> 
> Reason for curiosity is sooooo many 815s turned up in surplus.  I know the
> following
> applicable hideouts
> 
>    BC-950 T32/ARC-5 predecessor (1 there? )
>    BC-463 Target Drone RC tx.  Hiide your Ryan Firebees ladies.  (2 there)
>    BC-924 xtal-saver Zenith FM tx (1 used)
> 
> ??BC-400?? 75mcs marker beacon tx - have never seen hide nor hair of such.
> 
> But if the BC-400 or it's successor DID NOT use a TU-75, there's sure some
> splainin' to
> do about all that surplus.
> 

Robert & Susan Downs - Houston
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