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4pcs matched Quad PSVANE 300B HIFI Vacuum Tubes replace Shuguang 300B 300B-98

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Original price was: $289.52.Current price is: $173.71.

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Brand : Psvane
UPC : Does not apply
Model : 300B
Type : Vacuum Tube
Country/Region of Manufacture : China
Modified Item : No
gtin13 : Does not apply

4pcs matched Quad PSVANE 300B HIFI Vacuum Tubes replace Shuguang 300B 300B-98 Package listing: 300B Tube *4pcs (Matched Quad ) Brand new PSVANE HIFI series vacuum tube 300B is directly-heated type cathode triode, used as class A1. In audio amplifier it suits for the condition that the output power is 10W. White ceramic tube base. Heater Uf(DC)………………5V If(DC) …………… 1.2A Maximum Rating Ua……………480V Pa………40W Ik with cathode bias………………100 mA with fixed bias……………70 mA Direct Interelectrode Capacitances input……………9PF output……………4.3PF grid to plate……………15PF Static parameter Ua……………………300V -Ug………………… 60V Ia……………………60mA Gm……………………5.5mA/V ri……………………0.7 KΩ u ……………………3.85 Pout…………………6.6W typical workong parameter aodio amplifier class A1 Ua -Ug Ia RL Pout 2nd V V mA Ω W db 200 42 30 2000 3 20 200 39 40 2500 2.6 26 250 55 30 2000 4.9 18 250 52 40 3000 4.0 26 250 50 50 2500 4.4 26 250 48 60 2000 4.7 26 250 48 60 2700 4.1 30 250 45 80 1500 5.0 26 300 65 40 2500 6.7 20 300 63 50 2000 7.2 21 300 63 50 3000 6.1 26 300 61 60 2400 6.6 26 300 58 80 1700 7.5 26 350 76 50 3600 7.8 26 350 74 60 2000 10.2 21 350 74 60 3000 8.3 26 350 74 60 4000 7.0 30 350 71 80 2200 9.6 26 400 91 40 5000 8.4 26 400 89 50 1000 11.5 21 400 89 50 4000 9.4 25 400 87 60 3500 10.5 26 400 84 80 2500 12.5 25 450 104 40 6000 9.5 26 450 102 50 5000 10.7 Payment: 1. All payment must be prepaid. 2. We only accpet payment via paypal. Please kindly check if you can do the payment via paypal before placing an order. Shipping 1. We are not responsible for undeliverable address. We reserve the right to charge the shipping fee again for returned item due to wrong address. 2. Item are generally shipping out within 2 working days after your payment have been cleared. We ship on Monday to Friday (excluding Public Holidays). 3. Orders from the HongKong or Shenzhen will all be shipped out via the post postal. 4. We Ship to Worldwide, except the excluding country. Most delivered 10-30 business days. Returns 1. We offer 30 days money back guarantee return policy. 2. We will responsible for the postage of damaged replacements. Refund will be made upon receipt of the returned item.

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