PSVANE hifi Audio vacuum tube 805 HIFI amplifier tube a pair 100% Brand NEW
The price is for 1 pair (2 pcs), if you buy 2 pair(4 pcs), we will send the Factory full matched tubes to you.
1, PSVANE T-Collection series MK II use the Carbon Microcrystalline technology. Carbon Microcrystalline is a kind of very stable absorbent (material), and it has excellent heat transfer performance. Carbon Microcrystalline make up stabilization of the electrical performance inside of the Vacuum tube.
2, The PSVANE T-Collection series MK II tube socket is made with Teflon. It is very low electric inductivity, very low dielectric loss, and high breakdown voltage, high electric volume resistivity, high arc resistance. It has a lot of excellent features, it is waterproof and dampproof, withstand high temperature, low temperature resistance and Anti-corrosion. So, It enhances the stabilization and service durability of the vacuum tube.
3, The gray color of the PSVANE T-Collection series MK II tube is made with Aluminum oxidation, never discolor never color deterioration.
4, The feet of the PSVANE T-Collection series MK II tube are made with New formula Real gold plating. It Enhance the performance of the connection part of the contact. It makes the weak signal loss is reduced to a minimum.
805 direct thermal thorium tungsten cathode transistor, can be used for Class B, A-F, R-F power amplifier , Class C R-F power amplifier and high frequency oscillations.
Filament heating
Uf :10 V
If : 3.25 A
Capacitances
Input capacitance : 8.5 PF
Output capacitance : 10.5 PF
Capacitor across the road : 6.5 PF
Limit Ratings
Anode voltage : 1500 V
Anode dissipation power : 125 W
Recommended operating status ( reference value )
Class B A-F power amplifier ( two ) :
Typical operating conditions limit parameter
Ua : 1250 1500 1250 V
Ia (mAx.sig per tube) : 210 mA
Pa (in) (mAx.sig per tube) : 315 W
Pa (per t : 125 W
Ug : 16 V
Ug (pk) : 235 280 V
Ia (0) : 148 84 mA
Ia (mAx.sig) : 500 600 mA
Pd (mAx.sig) : 6 7 W
RL (a-a) : 6.7 8.2 KΩ
Pout (mAx.sig) : 300 370 W
Class B power amplifier (R-F):
( Under the conditions of each tube carrier modulation factor is a maximum )
Typical operating conditions limit parameter
Ua : 1250 1500 1500 V
Ug : 10 V
Ia : 135 115 150 mA
Pa (in) : 185 W
Pa : 125 W
Ug (pk) : 70 70 V
Ig : 15 15 mA
Pd : 11 7.5 W
Pout : 55 57.5 W
We ship the package within 1-3 days after the payment cleared.*
Shipping via DHL or UPS or FedEx or other express delivery takes 3-7 business days with a tracking number.
Shipping via China Post EMS or HK Post EMS usually takes 7-14 business days with a tracking number.
Shipping via China Post air mail or HK Post air mail usually takes 10-30 business days with a tracking number.
Faster payment, faster delivery.
Buyer pays any import taxes or customs duty.
All items are marked as low value on postal paper for customs to send that our buyers can save some customs fees.
Standard Return Policy:
If the item shows up defective or damaged, please email us immediately.
ONE-YEAR WARRANTY!!!
Brand new replacement with 14 days.
Defective situation must be reported to seller within 14 days upon receipt.
Returned item should be in its original box with all packing materials and shipped to us via a traceable shipping way.
We carefully inspect returned items upon receipt before issuance of refunds or exchanges.
Please allow up to 10 business days for us to process your return.
The customer needs to pay for the shipping costs for returning.
International Shipping:
We ship goods to worldwide. All the packages will come with a tracking number.
