Details
JJ Electronic tubes deliver solid performance with consistent quality and rich harmonic response. JJ Electronic tubes are the choice for amp manufacturers and listeners looking for quality European pedigree and tonality.
Features
- Type: Miniature dual triode vacuum tube
- Designation: 12AT7 (USA), ECC81 (Europe)
- Base: B9A (Noval) – 9-pin miniature
- Heater Voltage (Uf): 6.3V (300 mA) or 12.6V (150 mA)
- Amplification Factor (μ): 60
- Typical Plate Voltage (Ua): 250V (maximum 300V)
- Typical Plate Current (Ia): 10 mA
- Plate Resistance (Ri): 11 kΩ
- Transconductance (S): 5.5 mA/V
- Maximum Plate Dissipation (Wa): ≤ 2.5 W per triode
- Maximum Cathode Current (Ik): ≤ 15 mA
- Grid Circuit Resistance (Rg): 1 MΩ
- Typical Grid Voltage (Ug): -2 V (minimum -50 V)
- Heater-to-Cathode Voltage (Uk/f): ≤ 90 V
Top FAQs
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.
What time do you open?
We are open for business Mon – Fri 10.00 am till 7.00 pm, excluding public holidays
How long should I wait to receive my item?
It normally takes us between 3-4 days to process an order, but due to the Christmas season it could take 1-2 weeks. You will receive an email confirming your purchase, then our delivery men will contact you via phone to make a delivery appointment with you.