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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
80712 16.370 27BAMPL Mut.Cond.3500.Connect plate to top left contact of 6 pin socket.
8098 86.356 0AAMPL Mut.Cond.1700.Connect plate cap to right center contact of B socket with lead provided. See note D.
80M3 7540 0ARECT. STD.
80M2 7540 0ARECT. STD.
812 77.533 0ARECT. STD. See note D.
8113 26.350 0AAMPL Mut.Cond.1400.Connect cap to upper contact of 5 pin (B) socket. Use special lead provided.
8129 26.359 0AAMPL Mut.Cond.2200. See note A.
8167 12.520 0ARECT. STD. See notes A and D.
823 72.540 0ARECT. STD. See note D.
822 72.540 0ARECT. STD. See note D.
829/829B4 212.670 14EAMPL Plate No.2. Use adapter M-418
829/829B7 212.670 14EAMPL Plate No.1. Use adapter M-418.
82V3 72.540 0ARECT. STD. See note D.
82V2 72.540 0ARECT. STD. See note D.
833 7540 0ARECT. STD. See note D.
832 7540 0ARECT. STD. See note D.
832/832A4 212.667 14EAMPL Mut.Cond.3000. Plate No.2. Use adapter M-418
832/832A7 212.667 14EAMPL Mut.Cond.3000. Plate No.1. Use adapter M-418
83410 27.557 0AAMPL Mut.Cond.1800. Far cap = Plate. Near cap = grid. See note A.
8367 1330 0ARECT. STD. See notes A and D. OK over 1500.
83710 312.671 0DAMPL See note A.
83V3 7540 0ARECT. STD. See note D.
83V2 7540 0ARECT. STD. See note D.
845 16.340 0BRECT. STD. See note D.
847 76.340 0BRECT. STD. See note D.
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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