| Tube |
A |
B |
Filament |
L |
R |
Socket |
Press |
Notes |
|---|
| 1641 | 7 |
1 | 5 | 40 |
0 | A | RECT. STD. |
Connect clip lead to right plate cap. Left plate cap of tube under test should be connected to the upper left contact of |
| 1659 | 10 |
3 | 2.5 | 0 |
0 | C | DIODE |
Diode No. 2 |
| 1659 | 10 |
6 | 2.5 | 0 |
0 | C | DIODE |
Diode No. 1 |
| 1659 | 7 |
6 | 2.5 | 28 |
9 | C | AMPL |
Mut.Cond.750. Triode Sect. |
| 17 | 1 |
6 | 12.6 | 40 |
34 | A | AMPL |
Mut.Cond.1000. |
| 18 | 8 |
5 | 12.6 | 57 |
28 | C | AMPL |
Mut.Cond.1750. |
| 181 | 2 |
10 | 3 | 38 |
68 | A | AMPL |
Mut.Cond.1000. |
| 182B | 2 |
10 | 5 | 53 |
48 | A | AMPL |
Mut.Cond.1500. |
| 183 | 2 |
10 | 5 | 50 |
65 | A | AMPL |
Mut.Cond.1350. |
| 1851 | 8 |
5 | 6.3 | 71 |
10 | E | AMPL |
Mut.Cond.4000. |
| 1852 | 4 |
2 | 6.3 | 71 |
10 | E | AMPL |
Mut.Cond.3500. |
| 1853 | 4 |
2 | 6.3 | 71 |
10 | E | AMPL |
Mut.Cond.3500. |
| 19 | 8 |
8 | 2 | 42 |
12 | C | AMPL |
Mut.Cond.1000. |
| 19 | 11 |
6 | 2 | 42 |
12 | C | AMPL |
Mut.Cond.1000. |
| 1A3 | 10 |
5 | 1.5 | 0 |
0 | H | DIODE and 117N7 |
May show shorts on 2,3,4, and 5. |
| 1A4 | 2 |
5 | 2 | 27 |
24 | A | AMPL |
Mut.Cond.750. |
| 1A4P | 2 |
5 | 2 | 27 |
24 | A | AMPL |
|
| 1A5 | 8 |
5 | 1.5 | 32 |
35 | E | AMPL |
Mut.Cond.800. See note E. |
| 1A6 | 9 |
7 | 2 | 60 |
29 | C | AMPL |
Mut.Cond.150.OK over 120. |
| 1A6 | 1 |
5 | 2 | 0 |
29 | C | AMPL |
Mut.Cond.500. See note D. |
| 1A7 | 12 |
7 | 1.5 | 60 |
38 | E | AMPL |
Mut.Cond.300. Osc.Sect. OK over 240 on 3000 scale. See notes D and E. |
| 1A7 | 7 |
7 | 1.5 | 32 |
20 | E | AMPL |
Mut.Cond.800. Pent.Section. See Note D. |
| 1AB5 | 6 |
2 | 1.1 | 28 |
20 | F | AMPL |
Short on 1. |
| 1AF4 | 2 |
5 | 1.5 | 23 |
21 | H | AMPL |
Mut.Cond. 700. Shorts on 4 and 5. |
| 1AF5 | 3 |
8 | 1.5 | 0 |
0 | H | DIODE |
Diode Section |
| 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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