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I-177 Tube Tester




Select or type a tube name to get specific settings for the I-177 Tube Tester.


Sort columns values by clicking their titles - A → Z or Z → A


Tube A B Filament L R Socket Press Notes
892 56.354 30CAMPL Mut.Cond.1550.
89Y2 56.354 30CAMPL Mut.Cond.1550.
908 62.52 30CAMPL Mut.Cond.500.No.2.Grid.
908 82.52 30CAMPL Mut.Cond.500.No.1.Grid.
90011 96.344 17KAMPL Mut.Cond.1100. Shorts on 4 and 5.
90022 96.359 18LAMPL Mut.Cond.1900. Shorts on 4 and 5.
90031 96.354 14KAMPL Mut Cond.1500. Shorts on 4 and 5.
90049 126.344 0MDIODE Good tube reads in green sector.
90059 1320 0MDIODE Shorts on 2, 3, 4, and 5. Good tube reads in green sector.
90062 96.320 0LDIODE Shorts on 4 and 5.
928 66.32 30CAMPL Mut.Cond.500.No.2.Grid.
928 86.32 30CAMPL Mut.Cond.500.No.1 Grid.
958 52.557 28CAMPL Mut.Cond.1750.
9501 5237 37BAMPL Mut.Cond.950.
9512 5218 29AAMPL Mut.Cond.640.
9546 76.344 17MAMPL Mut.Cond.1100.
9559 76.359 18MAMPL Mut.Cond.1900. See note D.
9566 76.353 14MAMPL Mut.Cond.1500.
9579 71.119 23MAMPL Mut.Cond.650. Shorts on 4 and 5. See note D.
9589 71.132 34MAMPL Mut.Cond.1200. Shorts on 4 and 5. See note D.
958A9 71.132 34MAMPL Shorts on 4 and 5.
9596 71.110 30MAMPL Mut.Cond.600. Shorts on 4 and 5.
961 512.640 0ARECT. STD.
985 16.340 0BRECT. STD. Plate Number 2.
987 76.340 0BRECT. STD. Plate Number 1.
Important
This I-177 data-base was created using data from I-177 beta 1.08 worksheet, from July 5, 2002. A great compilation by Nolam E. Lee.
Note A: The plate cap of the tube under test should be connected to the upper left contact of the 6-pin (C) socket. A 12-inch lead with clip and bananna plug is provided for this purpose.
Note B: Connect the plate cap (nearest the operator) to the upper left contact of the 6-pin (C) socket; use the lead provided. Connect the grid lead to the remaining cap on the tube.
Note C: Set the MICROMHOS switch at 6000 when testing this section if the tube tester bears either Order No. 27613-Phila-44-52 or 52346-Phila-45-10 on the nomenclature plate.
Note D: This test is only a partial indication of a good tube. A complete test is only possible when using equipment.
Note E: Do not tap on this tube when testing for short because damage to the tube may result.
Note F: The Mutual Conductance values listed are averages for new tubes and only for a guide.

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Last modified: Jun 5, 2026 20:40
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