[ARC5] BC-221-J vs BC-221-T or what?

[Don Merz]

Thanks to all who replied. I DL'ed TM 11-300.I think I will power both of them up and see what's what. The T model looks brand new--but the nomenclature tags are missing. The only wayI know what model it is is the metal schematic inside the rear door. Also, the one switch knob is very stiff or frozen.The J model looks like it has been heavily used. It has a 1942 tag on it.The celluloid cover over the frequency chart shrunk and I pulled off its remains. Both are in black powdercoat metal cabinets.
Don

      From: Richard Knoppow <1oldlens1 at ix.netcom.com>
 To: Commtekman at aol.com; arc5 at mailman.qth.net 
 Sent: Saturday, February 13, 2016 1:12 AM
 Subject: Re: [ARC5] BC-221-J vs BC-221-T or what?
   
 TM 11-300 is the one that covers all models. I think mine was originally in a canvas case but I have only a canvas carrying sling. 
 
 On 2/12/2016 7:44 PM, Commtekman at aol.com wrote:
  
 
 Hello, I follow your forum and thought I would mention that I do have a TM on BC-221 sets, not sure which one it was written for, I could probably find it if it would help someone. I have two BC-221, I think one is in a canvas case, both are in storage and I am going over there tomorrow.   Bob Schaefer K6OSM      In a message dated 2/12/2016 7:14:56 P.M. Pacific Standard Time, 1oldlens1 at ix.netcom.com writes: 
   Somewhere I found a military TM that covers all of the BC-221 meters. Noton BAMA and I can't find it. It may help because at least it would tell you what differences are between them.  I have a BC-221, a late one with factory power supply. I have to look to see which version it is.  Its in a wooden case which makes setting the crystal calibrator difficult since it drifts a little with temperature and I don't want to drill a  hole in the case. It is quite accurate once warmed up. 
 
 On 2/12/2016 4:38 PM, Don Merz via ARC5 wrote:
  
  I guess the time has come for me to keep one of these in the shack. I have had literally dozens of them go through my hands over the years. Now I have two here and one of them is going to stay. But which one? The J model is in lesser condition. The T model is almost like new. Both have AC supplies in them--the one in the T model might be a factory supply. The one in the J model is almost certainly homebrew. Both have the spare tubes and hex wrench where they ought to be. Both have the correct calibration  books. Both were made by Zenith.  
  Is there any reason to prefer one over the other except overall condition? I have not tested them yet. But it does not seem like they would be hard to get running. Is there an achilles heel in them that I should check? 
  Any suggestions welcome. 73 de N3RHT 
   
  
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 -- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL 
 
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 -- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL 
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