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I-177 Tube Tester
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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 |
|---|---|---|---|---|---|---|---|---|
| 1D8 | 5 | 1 | 1.5 | 0 | 0 | E | DIODE | |
| 1D8 | 11 | 5 | 1.5 | 11 | 9 | E | AMPL | Mut.Cond.575. |
| 1D8 | 8 | 5 | 1.5 | 35 | 41 | E | AMPL | Mut.Cond.925. |
| 1E4 | 7 | 5 | 1.5 | 32 | 30 | E | AMPL | Mut.Cond.825. |
| 1E5 | 2 | 5 | 2 | 18 | 29 | E | AMPL | Mut.Cond.640. |
| 1E5GP | 2 | 5 | 2 | 35 | 29 | E | AMPL | |
| 1E7 | 11 | 6 | 2 | 45 | 17 | E | AMPL | Mut.Cond.1150. |
| 1E7 | 8 | 8 | 2 | 45 | 17 | E | AMPL | Mut.Cond.1150. |
| 1F4 | 1 | 5 | 2 | 51 | 19 | B | AMPL | Mut.Cond.1400. |
| 1F5 | 8 | 5 | 2 | 51 | 19 | E | AMPL | Mut.Cond.1400. |
| 1F6 | 5 | 5 | 2 | 0 | 0 | C | DIODE | OK over 500. |
| 1F6 | 11 | 1 | 2 | 0 | 0 | C | DIODE | OK over 500. |
| 1F6 | 1 | 7 | 2 | 20 | 21 | C | AMPL | Mut.Cond.650. |
| 1F7 | 7 | 1 | 2 | 0 | 0 | E | DIODE | |
| 1F7 | 4 | 5 | 2 | 0 | 0 | E | DIODE | |
| 1F7 | 1 | 5 | 2 | 20 | 21 | E | AMPL | Mut.Cond.650. |
| 1G4 | 7 | 5 | 1.5 | 33 | 40 | E | AMPL | Mut.Cond.825. See note E. |
| 1G5 | 8 | 5 | 2 | 54 | 30 | E | AMPL | Mut.Cond.1500. |
| 1G6 | 2 | 9 | 1.5 | 22 | 13 | E | AMPL | Mut.Cond.675. Plate #1. |
| 1G6 | 12 | 5 | 1.5 | 22 | 13 | E | AMPL | Mut.Cond.675. Plate #2. See note E. |
| 1H4 | 7 | 5 | 2 | 36 | 33 | E | AMPL | Mut.Cond.900. |
| 1H5 | 8 | 1 | 1.5 | 0 | 0 | E | DIODE | |
| 1H5 | 8 | 5 | 1.5 | 60 | 13 | E | AMPL | Mut.Cond.275. OK over 220 on 3000 scale. See note E. |
| 1H6 | 10 | 8 | 2 | 0 | 0 | E | DIODE | |
| 1H6 | 10 | 3 | 2 | 0 | 0 | E | DIODE | |
| 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
Cape Old Radio - Since Nov, 1996
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