THE OLD DAYS and DOC KD4E

[RAY FRIESS]

YES .. my mistake.  Sorry about that.   I meant 572B tubes...
Ray
  ----- Original Message ----- 
  From: Lorne Barber<mailto:bear57 at telus.net> 
  To: RAY FRIESS<mailto:rayfrijr at MSN.COM> ; BOATANCHORS at LISTSERV.TEMPE.GOV<mailto:BOATANCHORS at LISTSERV.TEMPE.GOV> 
  Sent: Thursday, August 23, 2007 10:42 PM
  Subject: Re: THE OLD DAYS and DOC KD4E


  Ray, I are you thinking of 572B's?

  7 3
  Lorne
  Ve7box
  ----- Original Message ----- 
  From: "RAY FRIESS" <rayfrijr at MSN.COM<mailto:rayfrijr at MSN.COM>>
  To: <BOATANCHORS at LISTSERV.TEMPE.GOV<mailto:BOATANCHORS at LISTSERV.TEMPE.GOV>>
  Sent: Thursday, August 23, 2007 9:19 PM
  Subject: Re: THE OLD DAYS and DOC KD4E


  Are you sure Glen?  An SB 200 uses a pair of 829B tubes.  I've been told you 
  can't put a pair of 811 tubes in there because the power supply is too much 
  for 811s.   On the other hand, a Collins 30L1 uses four 811 tubes and many 
  hams have put in two 829B tubes in place of the four 811s and they report 
  the 30L1 purrs like a kitten, hardly knowing the 829B tubes are there.. and 
  they last practically forever.
  Ray
    ----- Original Message ----- 
    From: Glen Zook<mailto:gzook at YAHOO.COM<mailto:gzook at YAHOO.COM>>
    To: BOATANCHORS at LISTSERV.TEMPE.GOV<mailto:BOATANCHORS at LISTSERV.TEMPE.GOV<mailto:BOATANCHORS at LISTSERV.TEMPE.GOV<mailto:BOATANCHORS at LISTSERV.TEMPE.GOV>>
    Sent: Thursday, August 23, 2007 9:39 PM
    Subject: Re: THE OLD DAYS and DOC KD4E


    Don't you mean the other way around?

    A pair of 811 tubes can take a whole lot more power
    than an 829B.  The plates in an 829B would melt long
    before those in the 811s.

    Glen, K9STH



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