| Tube |
A |
B |
Filament |
L |
R |
Socket |
Press |
Notes |
|---|
| 7N7 | 2 |
9 | 6.3 | 60 |
13 | F | AMPL |
Mut.Cond.2000. Shorts on 1, 4, and 5. |
| 7Q7 | 6 |
2 | 6.3 | 33 |
17 | F | AMPL |
Mut.Cond.800. See note D. |
| 7R7 | 4 |
8 | 6.3 | 0 |
0 | F | DIODE |
|
| 7R7 | 1 |
8 | 6.3 | 0 |
0 | F | DIODE |
|
| 7R7 | 6 |
3 | 6.3 | 67 |
8 | F | AMPL |
Mut.Cond.3000. |
| 7S7 | 2 |
8 | 6.3 | 53 |
0 | F | AMPL |
Mut.Cond.1500. See note D. |
| 7S7 | 6 |
3 | 6.3 | 53 |
15 | F | AMPL |
Mut.Cond.1500. See note D. |
| 7T7 | 6 |
2 | 6.3 | 69 |
0 | F | AMPL |
Mut.Cond.3400. |
| 7V7 | 6 |
2 | 6.3 | 70 |
5 | F | AMPL |
Mut.Cond.4000. |
| 7W7 | 6 |
2 | 6.3 | 67 |
9 | F | AMPL |
Mut.Cond.3000. Shorts on 1, 4, and 5. |
| 7X6 | 1 |
9 | 6.3 | 40 |
0 | F | RECT. STD. |
Plate No. 2. |
| 7X6 | 6 |
9 | 6.3 | 40 |
0 | F | RECT. STD. |
Plate No. 1. |
| 7X7 | 7 |
3 | 6.3 | 0 |
0 | F | DIODE |
|
| 7X7 | 12 |
8 | 6.3 | 0 |
0 | F | DIODE |
|
| 7X7 | 1 |
2 | 6.3 | 30 |
0 | F | AMPL |
Mut.Cond.700. Shorts on 1, 4, and 5. |
| 7Y4 | 6 |
6 | 6.3 | 40 |
0 | F | RECT. STD. |
See note D. |
| 7Y4 | 1 |
6 | 6.3 | 40 |
0 | F | RECT. STD. |
See note D. |
| 7Z4 | 6 |
6 | 6.3 | 40 |
0 | F | RECT. STD. |
See note D. |
| 7Z4 | 1 |
6 | 6.3 | 40 |
0 | F | RECT. STD. |
See note D. |
| 80 | 3 |
7 | 5 | 35 |
0 | A | RECT. STD. |
See note D. |
| 80 | 2 |
7 | 5 | 35 |
0 | A | RECT. STD. |
See note D. |
| 8016 | 7 |
1 | 1.1 | 0 |
0 | E | RECT. STD. |
Shorts on 3, 4, and 5. OK over 200. See notes A and D. |
| 801A | 2 |
10 | 7.5 | 53 |
0 | A | AMPL |
Mut.Cond.1500. |
| 802 | 10 |
3 | 6.3 | 60 |
18 | D | AMPL |
Mut.Cond.2000.See note A. |
| 8020 | 7 |
1 | 5 | 6 |
0 | A | RECT. STD. |
See notes A and D. |
| 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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