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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
16118 56.360 24EAMPL
16128 56.320 22EAMPL Mut.Cond.650. See note D.
16121 96.320 19EAMPL Mut.Cond.650. See note D.
16138 56.360 24EAMPL Mut.Cond.2250.
16148 56.373 20EAMPL
16167 12.535 0ARECT. STD. See notes A and D.
16198 52.569 24EAMPL Mut.Cond.3400.
16201 96.348 18EAMPL Mut.Cond.1225.
16218 56.360 24EAMPL Mut.Cond.2000.
16228 56.373 20EAMPL Mut.Cond.5000.
162312 16.361 0AAMPL Mut.Cond. 2200. See note A.
162412 12.571 14BAMPL Mut.Cond.4000. See note A.
16254 312.60 56DAMPL Mut.Cond.3800. Special cap lead to right center contact of 6 pin (C) socket. OK over 500.
16268 512.661 43EAMPL Mut.Cond.2100. See note D.
16294 912.60 0EAMPL Eye closed.
16294 812.60 0EAMPL Eye open.
16318 512.673 19EAMPL Mut.Cond.5000.
16328 512.675 15EAMPL Mut.Cond.8000.
163310 42569 0GAMPL Mut.Cond.3400. Shorts on 2 and 3.
16334 12575 0GAMPL Mut.Cond.8500.
16341 312.642 0GAMPL Mut.Cond.1000.
163410 312.642 0GAMPL Mut.Cond.1000.
16352 96.335 0EAMPL Mut.Cond.850.
163512 56.335 0EAMPL Mut.Cond.850.
16417 1540 0ARECT. STD. Connect clip lead to left plate cap. Right plate cap of tube under test should be connected to the upper left contact of
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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