[GreenKeys] Trying again

[hwhall@aol.com]

I think I agree. I was *assuming* the TU didn't have the internal loop supply. My oopsy.
WayneWB4OGM
On Friday, September 25, 2026 at 04:32:14 AM MDT, David Wade <dave.g4ugm at gmail.com> wrote:

  
 
 On 25/09/2026 12:16, hwhall--- via GreenKeys wrote:
  
 I'm going to assume the equipment was not recently working before it came to you. In which case... 
  You should first clean, test & get the Rectifier supply working right. It may need a restoration (parts replacements, cable replacements).  
 
 Wayne,
 The TU170 has a modern loop supply. I would suggest starting with that rather than the RA-87 with its selenium rectifier. I think this might be the only unusable piece of kit
 Dave
 
 
 Then go to work on the TG-7. Clean out the crud. Perform the manual's lubrication points. Check the magnet coil for continuity. Then try setting it up with the Rectifier supply for loop current & try running the TG-7 to see if keyboard inputs are correctly printed. Only then should you worry about any other stuff like getting it on the air for RTTY. 
  Above all, read the manual's longwinded descriptions of how all the components work to produce printing. Identify all the parts mentioned by looking at the machine, too. 
  Wayne WB4OGM 
  On Thursday, September 24, 2026 at 05:12:22 PM MDT, Keith Wood <kw6 at bigwtv.com> wrote: 
 
  It's been two weeks since my post asking for help.  I did get a good 
  response, but not actual answers to my questions, so I'm going to try again:
  
  
  I have a TG-7-B TTY.
  
  I have a TG-26-A Reperforator (without the cover).
  
  I have a TG-26-B Reperforator (apparently complete).
  
  I have a Rectifier RA-87.
  
  I have a Flesher TU-170 RTTY Terminal Unit.
  
  I have the manuals for the above, except the TG-26-B.
  
  I THINK I have the cables for the above.  All but the TU are in chests,
  and apparently came from Army MARS.  I got the TU from Fleabay.
  
  What I need is some advice and guidance for getting this stuff up and
  working.  I want to use it with a Yaesu FTDX5000, so will build the
  appropriate cable.
  
  1) To just get the RTTY up, do I need anything other than the TTY, TU
  and cables to/from TTY, TU and radio?
  
  2) I believe that the TTY is 115VAC, and the selector switch just sets
  cycles.  So I can plug in and go? Does anyone know the amps this uses?
  I'm not finding that in the manual.
  
  3) I'm seeing conflicting (or at least conFUSing) info regarding power
  for the Reperforators.  The manual says that "governed series motors"
  run on either 105-125VAC or 105-125VDC.  Then it says that the "jack
  box" needs 105-115VDC.  I THINK that means that I need to plug the
  Rectifier into 105-125VAC, then the Reperforator to the Rectifier.  Or
  do I even need the jack box?  I see that it connects to line units,
  which I don't have and apparently don't need.
  
  4) The manual I have only covers the TG-26-A.  Is there anything
  different about the TG-26-B that I need to know about?
  
  Thanks,
  Keith KA7EKW
  
  
  
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