Pinnacle 13D5 (12AU7/ECC82) NOS Matched Pair - 2-Hole Plate Small Ring Getter
NOS Matched Pair
New In White Box
2-Hole Plate
Small Ring Getter
Offering a laboratory-matched pair of 2 pcs Pinnacle 13D5 premium dual triodes, Serial Nos. 4397001 and 4397019. These high-grade 12AU7 equivalents feature stable 2-Hole Plates and a Small Ring Getter. Both tubes are New Old Stock (NOS) in clean white boxes and have been fully characterized on the Amplitrex AT1000 Digital Tube Tester.
- Type: 13D5 (Premium 12AU7 / ECC82) Brand: Pinnacle
- Condition: New in White Boxes Construction: 2-Hole Plate / Small Ring Getter
- Testing: Amplitrex AT1000 Quantity: 2 Pcs (Matched Pair)
High-Performance Screening: These tubes demonstrate consistent emission across all triode sections.
Precision Characterization: Both units have been screened for balanced performance against reference parameters ensuring reliable operation in premium audio circuits.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. |
Test Triode |
Parameter Ip (mA) |
Result Ip (mA) |
Percentage Ip |
Parameter Gm (uMhos) |
Result Gm (uMhos) |
Percentage Gm |
| 4397001 |
T1 |
10.5 |
8.2 |
78% |
2200 |
1560 |
71% |
| T2 |
10.5 |
7.6 |
72% |
2200 |
1400 |
64% |
| 4397019 |
T1 |
10.5 |
6.0 |
57% |
2200 |
1400 |
64% |
| T2 |
10.5 |
6.5 |
62% |
2200 |
1400 |
64% |
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