[Milsurplus] TBX-2 question

[Rob Lee]

Hue,

The TBX-4a had a extended transmitter frequency range of 2000 to 5800 kc. The TBX-4 had a transmitter frequency range of 2000 to 4525 kc. This info is contained in Supplement #4 of the Preliminary Instruction Book for Navy Model TBX-4.

Rob K7TGU
University Place WA
  ----- Original Message ----- 
  From: Hubert Miller 
  To: milsurplus at mailman.qth.net ; main at Army-Radios.groups.io 
  Sent: Saturday, March 06, 2021 17:34
  Subject: Re: [Milsurplus] TBX-2 question


  Are you saying this net switch on the -4 is original?

  Here's the -4a, which is, I think, same as -5. Why they named it -4a, I have no idea.

   

  Subject: Re: [Milsurplus] TBX-2 question

   

   

    TBX-2 question

     

    On my TBX-4 there's a single bat handle toggle switch, arranged to switch left and right. Below it is the label ON-OFF and above it NET.  Certainly a momentary switch would do the same thing if the circuit hasn't been altered.  

  Don...NE5DX

  de NE5DX, Don in Giddings, Tx. EM10ME 

   

  TBX-4a : 

   





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