Details
Preamp Tube
Features
- Type: Miniature dual triode vacuum tube
- Designation: 12AX7 (USA), ECC83 (Europe)
- Base: B9A (Noval) – 9-pin miniature
- Heater Voltage (Uf): 6.0–6.6 V (300 mA) or 12.0–13.2 V (150 mA)
- Amplification Factor (μ): Nominal 92, Minimum 78
- Typical Plate Voltage (Ua): 300 V
- Typical Plate Current (Ia): 9 mA
- Plate Resistance (Ra): 54.1 kΩ
- Transconductance (S): ≥ 1.4 mA/V, nominal 1.7 mA/V
- Maximum Plate Dissipation (Wa): 1.0 W per triode
- Grid Circuit Resistance (Rg): Fixed Bias: 1 MΩ, Self Bias: 2.2 MΩ
- Heater-to-Cathode Voltage (Uk/f): Positive: ≤ 100 V, Negative: ≤ 200 V
Top FAQs
Do you open on Saturdays and Sundays?
Unfortunately not. We value our beauty sleep and need to recharge for the next Monday 🙂
What if a product is not in stock after I ordered?
If the product you have ordered is currently out of stock we will contact you by phone and email and give you an estimated time of arrival.
When are your delivery times?
Our delivery times are Mon to Fri from 9.30am till 3.30pm