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[GRADE B] SHUGUANG CV181-Z HiFi Tubes (Matched Pair)
The CV181-Z tube construction features gold grid wires and an internally coated black glass bulb. This HPCC (High Polymer Compound Carbon) coating is unique for its ability to reduce stray electron emission. Shuguang also uses its Super Alloy technology to achieve better current stability.
![[GRADE B] SHUGUANG CV181-Z HiFi Tubes (Matched Pair)](https://www.audiophonics.fr/63353-thickbox_default/shuguang-cv181-z-hifi-tubes-matched-pair.jpg "[GRADE B] SHUGUANG CV181-Z HiFi Tubes (Matched Pair)")
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Refurbished product - Grade B
Oxidation on the pins and a few scratches on the glass.
Shuguang CV181-Z
Tubes (Matched Pair)
The CV181-Z tube construction features gold grid wires and an internally coated black glass bulb. This HPCC (High Polymer Compound Carbon) coating is unique for its ability to reduce stray electron emission. Shuguang also uses its Super Alloy technology to achieve better current stability.
This tube can be used to replace 6SN7 tubes.
Technical characteristics
| Specifications | |
|---|---|
| Product type | Tubes |
| Number of pins | 8 |
| Contacts plating | Gold |
| Quantity | Matched pair |
| Filament heating | |
|---|---|
| UH | 6.3V |
| IH | 0.6A |
| Input capacitance | N°1 : 2.2pF N°2 : 2.6pF |
| Output capacitance | N°1 : 0.7pF N°2 : 0.7pF |
| Miller capacitance | N°1 : 4pF N°2 : 3.8pF |
| Max values | |
|---|---|
| Ua | 450V |
| Pa | 5W |
| UH-k | ±100V |
| Ik | 20mA |
| Pa(N°1+N°2) | 7.5W |
| Rg | 1mΩ |
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