| Tube |
A |
B |
Filament |
L |
R |
Socket |
Press |
Notes |
|---|
| 1P5 | 8 |
5 | 1.5 | 31 |
9 | E | AMPL |
Mut.Cond.800. See note E. |
| 1Q5 | 8 |
5 | 1.5 | 61 |
30 | E | AMPL |
Mut.Cond.2100.See note E. |
| 1R4 | 10 |
5 | 1.5 | 0 |
0 | F | DIODE |
|
| 1R5 | 1 |
7 | 1.5 | 0 |
25 | H | AMPL |
Mut.Cond.500. See notes D and E. |
| 1R5 | 7 |
7 | 1.5 | 19 |
29 | H | AMPL |
Mut.Cond.600. Shorts on 4 and 5. See note D. |
| 1S4 | 8 |
6 | 1.5 | 0 |
0 | H | DIODE |
Ok over 200. See note E. Shorts on 1, 4, and 5. |
| 1S5 | 3 |
6 | 1.5 | 0 |
0 | H | DIODE |
|
| 1S5 | 6 |
6 | 1.5 | 9 |
28 | H | AMPL |
Mut.Cond.525. See note E. |
| 1SA6 | 3 |
4 | 1.5 | 39 |
19 | E | AMPL |
Mut.Cond.950. |
| 1SB6 | 2 |
5 | 1.5 | 20 |
22 | E | AMPL |
Mut.Cond.650. |
| 1T4 | 1 |
7 | 1.5 | 28 |
28 | H | AMPL |
Mut.Cond.750. Shorts on 4 and 5. See note E. |
| 1T5 | 8 |
5 | 1.5 | 46 |
37 | E | AMPL |
Mut.Cond.1150. See note E. |
| 1U4 | 2 |
5 | 1.5 | 35 |
12 | H | AMPL |
Shorts on 4 and 5. See note E. |
| 1U5 | 8 |
1 | 1.5 | 0 |
0 | H | DIODE |
|
| 1U5 | 2 |
5 | 1.5 | 9 |
28 | H | AMPL |
Mut.Cond.525. See note E. |
| 1U6 | 1 |
5 | 1.5 | 32 |
18 | H | AMPL |
Mut.Cond.825. Pentode Section |
| 1V | 1 |
5 | 6.3 | 40 |
0 | A | RECT. STD. |
|
| 1W4 | 2 |
5 | 1.5 | 40 |
37 | H | AMPL |
Mut.Cond.925. |
| 20 | 2 |
10 | 3 | 0 |
68 | A | AMPL |
Mut.Cond.525. |
| 2050 | 8 |
5 | 6.3 | 40 |
80 | E | RECT. STD. |
Good tubes strike between 30 and 35 on R when this control is rotated counterclockwise. See note D. |
| 2051 | 8 |
5 | 6.3 | 40 |
80 | E | RECT. STD. |
Good tubes strike between 30 and 35 on R when this control is rotated counterclockwise. See note D. |
| 205D | 2 |
10 | 5 | 60 |
28 | A | AMPL |
Use Alden No. 978WEB Adapter. Mut.Cond.1200. |
| 205E | 2 |
10 | 5 | 60 |
28 | A | AMPL |
Use Alden No. 978WEB Adapter. Mut.Cond.1200. |
| 215A | 2 |
10 | 1.1 | 60 |
45 | A | AMPL |
Use Alden No.972 Adapter. Minimum value of 320. |
| 22 | 2 |
5 | 3 | 0 |
37 | A | AMPL |
Mut.Cond.500. |
| 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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