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Sort columns values by clicking their titles - A → Z or Z → A
| Tube | A | B | Filament | L | R | Socket | Press | Notes |
|---|---|---|---|---|---|---|---|---|
| 100-C Boonton | 7 | 6 | 2.5 | 28 | 9 | C | AMPL | Mut.Cond.750. Triode Sect. |
| 1003 | 10 | 2 | 0 | 60 | 0 | E | 0Z4 | See note D. |
| 1003 | 2 | 9 | 0 | 60 | 0 | E | 0Z4 | See note D. |
| 1003 | 4 | 8 | 0 | 0 | 0 | E | NOTHING | Check for shorts |
| 1005 | 12 | 1 | 0 | 68 | 0 | G | 0Z4 | See note D. |
| 1005 | 1 | 12 | 6.3 | 68 | 0 | G | 0Z4 | See note D. |
| 1006 | 3 | 7 | 1.5 | 68 | 0 | A | 0Z4 | See note D. |
| 1006 | 2 | 7 | 1.5 | 68 | 0 | A | 0Z4 | See note D. |
| 1007 | 8 | 3 | 0 | 62 | 0 | E | 0Z4 | Shorts on 4 and 5. |
| 1007 | 8 | 2 | 1.1 | 62 | 0 | E | 0Z4 | Shorts on 4 and 5. |
| 101D | 2 | 10 | 4.3 | 39 | 25 | A | AMPL | Insert tube in socket with pin on base away from operator. |
| 101F | 2 | 10 | 4.3 | 41 | 26 | A | AMPL | Insert tube in socket with pin on base away from operator. |
| 101FA | 2 | 10 | 4.3 | 60 | 35 | A | AMPL | Minimum value of 1100. |
| 101J | 2 | 10 | 4.3 | 41 | 26 | A | AMPL | Insert tube in socket with pin on base away from operator. |
| 102-A Boonton | 2 | 10 | 2.5 | 59 | 50 | A | AMPL | Mut.Cond.1850. |
| 102D | 2 | 10 | 2 | 40 | 23 | A | AMPL | Minimum value of 360. |
| 102E | 2 | 10 | 2 | 40 | 23 | A | AMPL | Minimum value of 360. |
| 102F | 2 | 10 | 2 | 40 | 23 | A | AMPL | Minimum value of 430. |
| 102G | 2 | 10 | 2 | 40 | 23 | A | AMPL | Minimum value of 360. |
| 104D | 2 | 10 | 4.3 | 60 | 60 | A | AMPL | Minimum value of 830. |
| 10Y | 2 | 10 | 7.5 | 50 | 32 | A | AMPL | (AKA 10 Special) |
| 112A | 2 | 10 | 5 | 57 | 36 | A | AMPL | Mut.Cond.1650. |
| 114B | 7 | 5 | 1.5 | 43 | 25 | F | AMPL | See Note D. Connect right cap to upper right contact of A socket with lead provided. Connect grid lead to left cap. |
| 117L7/M7 | 5 | 8 | 117 | 40 | 0 | E | RECT. STD. | See note D. |
| 117L7/M7 | 2 | 8 | 117 | 72 | 30 | E | AMPL | Mut.Cond.6000. Shorts on 1, 4, and 5. |
| 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. |
Last modified: Jun 5, 2026 20:40
Cape Old Radio - Since Nov, 1996
1996 - 2026 © Carlos Eduardo Lazarini da Fonseca