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TUBES - Professionally Tested Eimac YU-158/8877 The following report was prepared by: Richardson Electronics 11267 Commercial Way Brooksville, Fl. 34614 Eimac YU-158/8877 - - S/N SKD-0143 5KVDC was applied to the anode grounded to grid and showed no current draw at all indicating the tubes vacuum had not been compromised. Additionally, there are no inter-electrode shorts within the tube. Application of 5VDC to the filament of the tube shows a current draw of 10.4A which is normal for this type of tube. Factory specification is 10.5A. Tube was pulse tested under load and showed a peak emission of 62. Normal for a new tube of this type is 60. Conclusion: This tube is in good condition and makes full emission of a new tube. This tube should be serviceable in most applications, but it is not recommended to be put into medical service. The original test results will be enclosed with the sale. Sold AS IS no returns because I cannot control how it might be used or abused. $800.00 plus shipping. W0ZD Listing #1725083 by W0ZD Last Edited on 04/27/25 Submitted on 04/07/25 Submitted from c-73-101-20-251.hsd1.pa.comcast.net Click to Contact Back to Previous Page

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