-40%
4 Cardmatic tested Sylvania National NU Philco engraved base type 26 tubes.
$ 5.27
- Description
- Size Guide
Description
Cardmatic tested Sylvania National NU Philco engraved base type 26 tubes.Theses were tested on a Hickok Cardmatic. The scale is 0-100. 50 is the demarcation between good and replace. A tube matching the specs of a new tube would read 82. A measurement of 82 equates to a gm of 1150.
Here are the readings for these tubes.
1. Philco - 61
2. NU - 71
3. Sylvania - 88
4. Sylvania - 71
Cleaning the tubes is being left to the buyer since often cleaning the tubes also removes labeling.
Test results are written on the tubes. These can be easily removed with a moist paper towel.
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