| Tube |
A |
B |
Filament |
L |
R |
Socket |
Press |
Notes |
|---|
| 99 | 2 |
10 | 3 | 60 |
45 | A | AMPL |
Mut.Cond.425. OK over 340. |
| A-4442 | 1 |
8 | 6.3 | 0 |
0 | K | DIODE |
Diode No. 2 |
| A-4442 | 4 |
8 | 6.3 | 0 |
0 | K | DIODE |
Diode No. 1 |
| A-4442 | 11 |
2 | 6.3 | 59 |
20 | K | AMPL |
Mut.Cond.1900. |
| A2209 | 8 |
4 | 6.3 | 74 |
0 | L | AMPL |
Mut.Cond.6000. Short on 3. |
| A30870 | 7 |
5 | 6.3 | 60 |
24 | E | AMPL |
Mut.Cond.2000. |
| A4273B | 10 |
4 | 6.3 | 56 |
24 | G | AMPL |
Mut.Cond.1650. Shorts on 2 and 3. |
| A4273B | 4 |
1 | 6.3 | 56 |
24 | G | AMPL |
Mut.Cond.1650.Shorts on 2 and 3. |
| A4375A | 4 |
8 | 6.3 | 0 |
82 | K | DIODE |
|
| A4375A | 12 |
2 | 6.3 | 45 |
5 | K | AMPL |
Mut.Cond.1150. |
| A4434 | 11 |
8 | 6.3 | 69 |
11 | K | AMPL |
Mut.Cond.5000. See note D. |
| A4434 | 1 |
2 | 6.3 | 69 |
11 | K | AMPL |
Mut.Cond.5000. See note D. |
| A4450 | 8 |
5 | 6.3 | 70 |
17 | L | AMPL |
Mut.Cond.3700. |
| A4498 | 4 |
2 | 12.6 | 60 |
25 | E | AMPL |
Use adapter #6 for triode #2. |
| A4498 | 4 |
2 | 12.6 | 60 |
25 | E | AMPL |
Use adapter #5 for triode #1. |
| A4524A | 1 |
9 | 6.3 | 60 |
12 | A | AMPL |
Mut.Cond.2000. |
| A5581A | 7 |
7 | 6.3 | 60 |
33 | E | AMPL |
Mut.Cond.300. OK over 240. See note D. |
| A5581A | 1 |
7 | 6.3 | 52 |
13 | E | AMPL |
Mut.Cond.750. See note D. |
| AD | 1 |
5 | 6.3 | 40 |
0 | A | RECT. STD. |
See note D. |
| AF | 3 |
7 | 2.5 | 40 |
0 | A | RECT. STD. |
See note D. |
| AF | 2 |
7 | 2.5 | 40 |
0 | A | RECT. STD. |
See note D. |
| AG | 2 |
7 | 5 | 40 |
0 | A | RECT. STD. |
See note D. |
| AG | 3 |
7 | 5 | 40 |
0 | A | RECT. STD. |
See note D. |
| C171 | 2 |
10 | 3 | 38 |
68 | A | AMPL |
Mut.Cond.1000. |
| C182 | 2 |
10 | 5 | 38 |
68 | A | AMPL |
Mut.Cond.1000. |
| 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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