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Old 17th April 2011, 10:43 AM   #1
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Default Siemens CCA, NOS matched pair!

Up for sale is a matched pair of the famous Siemens CCa tubes.
Both are NOS, and test very strong:
Tube 1: 17.7/18.5 mA, amp. factor: 15.5/15 ma/V
Tube 2: 19/18.5 mA, amp. factor: 15.5/15 ma/V
Physically perfect! They come in white boxes.

USD $270 + $15 air mail shipping. Will pack well!
E-mail to whistler[at]pageone.no for more info!
Attached Images
File Type: jpg cca_front.jpg (331.4 KB, 152 views)
File Type: jpg cca_back.jpg (243.5 KB, 142 views)
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Thanx!

Last edited by bequerel; 17th April 2011 at 10:48 AM.
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Old 3rd August 2012, 01:53 PM   #2
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Are they still available?

Tnx
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Old 3rd August 2012, 02:45 PM   #3
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Quote:
Originally Posted by radiostar View Post
Are they still available?

Tnx
Yes, they are.
Please, note the slight difference between the letters on the two tubes. (Refer to the picture). That could mean that they come from two different production runs, however, they should be closely matched. (I am a DIYer, and not a tube collector.)

The tubes come from a large collection of CCA tubes that was salvaged from telecom equipment that was never put into operation, because of the advent of the transistor.
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Old 3rd August 2012, 04:04 PM   #4
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I saw the difference, thanks, actually I need them to compare with slightly used CCa Siemens I have in big qtys.
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