[Hallicrafters] HT-37 output tubes.

[Bob Rinaldi]

Glen:
Along the same line of inquiry, I've seen KWM2 units with the various 6146 varieties.  Which variety did Collins specify for the M2?

Thanks,
Bob
W1CNY
.

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  ----- Original Message ----- 
  From: Glen Zook 
  To: Waldo Magnuson ; hallicrafters at mailman.qth.net 
  Cc: Waldo Magnuson 
  Sent: Thursday, January 15, 2004 3:42 PM
  Subject: Re: [Hallicrafters] HT-37 output tubes.


  The 6146B is NOT the same tube as the 6146/6146A/8298.
   In many cases substituting the 6146B for the earlier
  series tubes causes all sorts of problems.

  For the article on the 6146 family of tubes that
  appeared in Electric Radio a couple of years ago and
  was printed in the Collins Collectors' Association
  newsletter since then go to either of the websites
  that are listed at the end of this message.

  Also, any 6146W produced after 1964 (and some in 1964)
  are the equivalent of the 6146B even though there was
  nothing in the nomenclature to indicate this.  Those
  produced before 1964 are either 6146 or 6146A
  equivalents.  The 6146 and 6146A can be mixed in the
  same unit.  But, DO NOT mix a 6146B with the earlier
  versions!  That is really asking for trouble!

  Glen, K9STH


  --- Waldo Magnuson <magnuson at mac.com> wrote:

  My question is: Are there any opinions (base on
  experience) on the 6146 vs. 6146A vs. 6146B and on 
  the manufacturer (GE, RCA , CBS, Amperex, Sylvania).


  =====
  Glen, K9STH

  Web sites

  http://home.comcast.net/~k9sth
  http://home.comcast.net/~zcomco

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