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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
C182A2 10553 65AAMPL Mut.Cond.1500.
C3732 10342 41?AMPL Mut.Cond.1000.
C6861 6360 35?AMPL Mut.Cond.450. MICROMHOS only. OK over 360 on 3000 scale.
CK6117 56.371 17LAMPL
CK6121 96.375 9KAMPL Mut.Cond.8000. Shorts on 4 and 5.
CV18 (Brit.)7 56.350 30DAMPL Connect left plate cap to upper right contact on A socket with lead provided.
CV18 (Brit.)1 56.350 30DAMPL Connect right plate cap to upper right contact on A socket with lead provided.
D-107 26.354 15EAMPL Mut.Cond.1500. See note A.
D258 56.367 0EAMPL Mut.Cond.3000. Connect cap to upper right-hand contact of B socket with lead provided.
D274 26.360 0KDIODE Shorts on 2 and 3.
D279 26.360 0KDIODE Shorts on 2 and 3.
D284 86.30 82KDIODE
D2812 26.345 5KAMPL Mut.Cond.1150.
D863262 104.339 25AAMPL Insert tube in socket with pin on base away from operator.
D863272 104.360 60AAMPL Minimum value of 830.
DE11 62.540 34BAMPL Mut.Cond.1000.
DH63 (Brit.)10 26.30 0EDIODE
DH63 (Brit.)10 56.30 0EDIODE
DH63 (Brit.)7 56.333 14EAMPL Mut.Cond.800.
DT-7012 16.371 0BAMPL Mut.Cond.4000. See note A.
DT1532 51.535 12HAMPL Shorts on 4 and 5. See note E.
E11487 26.362 10?AMPL Mut.Cond.2200.Upper cap = plate. Lower cap = grid.
E82CC4 212.660 25EAMPL Use adapter #6 for triode #2.
E82CC4 212.660 25EAMPL Use adapter #5 for triode #1.
E90Z6 56.335 0KRECT. STD. Plate No. 2. 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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