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JJ ELECTRONICS ECC803S / 12AX7 9-Pin Dual Triode Preamp Tube (Unit)
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Accessories for this product
Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.
JJ ELECTRONICS Tube ECC803S / 12AX7
9-Pin Dual Triode Preamp Tube (Unit)
The ECC803S /12AX7 tube from JJ ELectronics is a double triode preamplifier tube with a noval base (9 pins). This long-plate Hi-Fi quality tube is ideal for replacing a defective tube (ECC803S /12AX7 / 7025) or for integration in a DIY audiophile project.
Technical characteristics
| Specifications | |
|---|---|
| Product type | Preamp tube |
| Tube type | Dual triode tube |
| Compatibility | ECC803S /12AX7 |
| Pole numbers | 9 (Noval) |
| Uf | 6.3V / 12.6V |
| If | 300V / 150V |
| Basic characteristics | |
|---|---|
| Ua | 250V |
| Rk | 1k6 |
| Ia | 1.2mA |
| S | 1.6mA |
| Ri | 62.5kΩ |
| µ | 100 |
| Capacitances | |
|---|---|
| Cg/k | n°1 : 1.6PF n°2 : 1.6PF |
| Ca | n°1 : 0.46PF n°2 : 0.34PF |
| Cg/a | n°1 : 1.7PF n°2 : 1.7PF |
| operating characteristics | |
|---|---|
| Ub | 250V 250V 250V |
| Ra | 47kΩ 100kΩ 220kΩ |
| Ia | 1.18mA 0.86mA 0.48mA |
| Rg | 1MΩ 1MΩ 1MΩ |
| Rk | 1.2kΩ 1.5kΩ 2.7kΩ |
| Limiting values | |
|---|---|
| Ua | 300V |
| Wa | 1.2W |
| Ik | 9mA |
| Ug | -55V |
| Rg | 2.2MΩ |
| Uk/f | 100V |
| General | |
|---|---|
| Conditionnement | 1x JJ ELECTRONICS ECC803S / 12AX7 9-pin Dual Triode Preamplifier Tube (Unit) |
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