| Tube |
A |
B |
Filament |
L |
R |
Socket |
Press |
Notes |
|---|
| 12X4 | 6 |
5 | 12.6 | 35 |
0 | K | RECT. STD. |
Plate No.2. |
| 12X4 | 3 |
5 | 12.6 | 35 |
0 | K | RECT. STD. |
Plate No.1. |
| 12Z3 | 1 |
5 | 12.6 | 40 |
0 | A | RECT. STD. |
See note D. |
| 12Z5 | 12 |
8 | 12.6 | 40 |
0 | D | RECT. STD. |
See note D. |
| 12Z5 | 1 |
8 | 12.6 | 40 |
0 | D | RECT. STD. |
See note D. |
| 12Z5 | 6 |
1 | 6.3 | 40 |
0 | D | NOTHING |
Check for shorts |
| 14 | 7 |
6 | 12.6 | 42 |
20 | B | AMPL |
Mut.Cond.1000. |
| 14A4 | 6 |
2 | 12.6 | 66 |
14 | F | AMPL |
Mut.Cond.2600. |
| 14A5 | 6 |
2 | 12.6 | 60 |
15 | F | AMPL |
Set MICROMHOS switch to 6000. OK over 800. |
| 14A7 | 6 |
2 | 12.6 | 59 |
18 | F | AMPL |
Mut.Cond.1900. |
| 14AF7 | 2 |
9 | 12.6 | 64 |
0 | F | AMPL |
Mut.Cond.2500. Shorts on 1, 4, and 5. |
| 14AF7 | 12 |
5 | 12.6 | 64 |
0 | F | AMPL |
Mut.Cond.2500. |
| 14B6 | 12 |
10 | 12.6 | 0 |
0 | F | DIODE |
Shorts on 1, 4, and 5. See note D. |
| 14B6 | 8 |
3 | 12.6 | 0 |
0 | F | DIODE |
Shorts on 1, 4, and 5. See note D. |
| 14B6 | 2 |
3 | 12.6 | 44 |
0 | F | AMPL |
Mut.Cond.1100. Shorts on 1, 4, and 5. See note D. |
| 14B8 | 8 |
10 | 12.6 | 0 |
15 | F | AMPL |
Mut.Cond.500. |
| 14B8 | 5 |
3 | 12.6 | 40 |
22 | F | AMPL |
Mut.Cond.1000. |
| 14C5 | 6 |
2 | 12.6 | 69 |
19 | F | AMPL |
Mut.Cond.3700. |
| 14C7 | 6 |
2 | 12.6 | 63 |
9 | F | AMPL |
Mut.Cond.2275 |
| 14E6 | 6 |
10 | 12.6 | 0 |
0 | F | DIODE |
Diode No. 2 |
| 14E6 | 8 |
3 | 12.6 | 0 |
0 | F | DIODE |
Diode No. 1 |
| 14E6 | 2 |
3 | 12.6 | 58 |
10 | F | AMPL |
Mut.Cond.1800. Shorts on 1, 4, and 5. |
| 14E7 | 1 |
8 | 12.6 | 0 |
0 | F | DIODE |
|
| 14E7 | 6 |
3 | 12.6 | 49 |
18 | F | AMPL |
Mut.Cond.1300. |
| 14E7 | 4 |
8 | 12.6 | 0 |
0 | F | 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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