Tubes Asylum

RE: Help needed on codes for a Mazda tube

76.174.140.102

Tre'

In Reply to: RE: Help needed on codes for a Mazda tube posted by John PA on April 15, 2012 at 16:58:50

Made in Brussels, Belgium 1952

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

http://www.schmidt-sarra.de/TC/Tubes/Valvo/Phlipscode.htm (Open in New Window)

Follow Ups:

So I am still trying to figure out each of the letters and . . - John PA 20:35:40 04/16/12 (2)
numbers. From the site I can see that it is Brussels and 1951 but what is the rest?

Any ideas? Thanks.

The Elaborate DAC=Johnny's Balloon Meshplate 27 Balanced Preamp=Balanced Six Pacs=Newform Research 645
iRiver H140/MB Balanced dac/amp/Ultrasone Ed. 9/JH13 Pro IEM's

see images at: www.pbase.com/jamato8
- RE: So I am still trying to figure out each of the letters and . . - Tre' 09:02:21 04/17/12 (1)
  Example: I66 Δ0K4
  I6 = ECC83
  I66 = ECC83 of construction #6
  Δ = Made in Heerlen/Holland
  0K4 = Made 197 0 in
  
  November K
  4th week
  
  so, f33 L1B
  
  f3 = GZ34
  3 = construction #3
  L = Brussels
  1 = 1951
  B = Tubes before 1960 have a second line with only 3 digits. Their production month can only be derived from a special table. [and there is no 'production week' code]
  
  Tre'
  Have Fun and Enjoy the Music
  "Still Working the Problem"
  - Great . . - John PA 22:32:46 04/17/12 (0)
    Thank you.
    
    The Elaborate DAC=Johnny's Balloon Meshplate 27 Balanced Preamp=Balanced Six Pacs=Newform Research 645
    iRiver H140/MB Balanced dac/amp/Ultrasone Ed. 9/JH13 Pro IEM's
    
    see images at: www.pbase.com/jamato8
That should have been L1B. . . - John PA 19:38:07 04/15/12 (3)
for the second line.

The Elaborate DAC=Johnny's Balloon Meshplate 27 Balanced Preamp=Balanced Six Pacs=Newform Research 645
iRiver H140/MB Balanced dac/amp/Ultrasone Ed. 9/JH13 Pro IEM's

see images at: www.pbase.com/jamato8
- I miss Ja in Tucson...and the new restored Fox theatre...nt - Minussss3db 20:55:05 04/15/12 (2)
  mmm
  - I saw a gila the other day on the road about. . . - John PA 22:01:23 04/15/12 (1)
    a quarter of a mile from here. A beautiful adult out during the day. A couple of cars were coming so I got a broom and very gently laid the broom on its head and then picked it up (I used to work with all types of poisonous snakes and with gilas. I loved just looking at it and then took it off the road and let it go.
    
    Tucson is nice right now, around 70, few clouds and a slight breeze but up to 90 in 2 days.
    
    The Elaborate DAC=Johnny's Balloon Meshplate 27 Balanced Preamp=Balanced Six Pacs=Newform Research 645
    iRiver H140/MB Balanced dac/amp/Ultrasone Ed. 9/JH13 Pro IEM's
    
    see images at: www.pbase.com/jamato8
    - I saw a gila the other day on the road ...You are Blessed - Minussss3db 23:05:59 04/15/12 (0)
      !....I have only once seen a Gila...North of the Tucson National monument (west)...just off an arrollo, sunning himself by the hub of the Universe...I can not remember the name, the Hill where all the spirals and petroglyphs are...
      
      Wow you bring a lot back....thanks...I am listening to some good music now also...
      
      http://www.youtube.com/watch?v=B-j8ZQoTgvg&feature=autoplay&list=PL054976BC8340E8E3&lf=plpp_video&index=1&playnext=1
      
      and http://www.youtube.com/watch?v=4VaK-HKE9sM&list=PL054976BC8340E8E3&index=32&feature=plpp_video
      
      Truly all the Best and all the Good to you,
      Sincerely,
      -3db

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