Vacuum Tube FU-5 Shuguang Replace Replace 805 GL805 High Reliability Precise HIFI Audio

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Vacuum Tube FU-5 805 Shuguang Replace GL805 High Reliability Precise HIFI Audio   Model No: FU-15   Vacuum tube FU-5 (805) is a direct-heated thorium-tungsten cathode triode, it can be used for class B, A-F, R-F power amplification, class C R-F power amplification and high-frequency oscillation.   FU-15(805) is similar...
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$94.90
Important: Import duties, taxes and other customs related charges all are not included into shipping cost . Buyers bear all responsibility for all extra charges incurred (if any).

Vacuum Tube FU-5 805 Shuguang Replace GL805 High Reliability Precise HIFI Audio

 

Model No: FU-15

 

Vacuum tube FU-5 (805) is a direct-heated thorium-tungsten cathode triode, it can be used for class B, A-F, R-F power amplification, class C R-F power amplification and high-frequency oscillation.

 

FU-15(805) is similar to GL-805 and can be used interchangeably.

 

 

Filament heating

 

Uf ……………………10 V

If………………………… 3.25 A

Interelectrode capacitance

Input capacitance……………………8.5 PF

Output capacitance……………………10.5 PF

Trans-circuit capacitance……………………6.5 PF

 

Limit rating

 

Anode voltage……………………1500 V

Anode dissipation power………………125 W

Operating frequency and anode voltage

When the working frequency is above 30MC, the anode voltage and anode input power will be adjusted down according to the following table in due course:

Frequency (MC) Anode voltage and anode input power

 

B pole electrode C class telephone anode modulation telegraph

30 100% 100%

45 90% 82%

80 71% 55%

 

Recommended working status (reference value)

 

Class B A-F power amplifier (two tubes) limit value

Ua……………………1250 1500 1500 V

Ia(max.sig.per tube)……………210 mA

Pa(in)(max.sig.per tube) z……315 W

Pa (per tube) …………………… 125 W

Ug………………………………16 V

üg(pk)……………………235 280 V

Ia(0)……………………148 84 mA

Ia(max.sig)……………500 600 mA

Pd……………………6 7 W

RL(a-a)……………………6.7 8.2 kΩ

Pout(max.sig)…………300 370 W

 

Class B R-F power amplifier

 

(The maximum modulation coefficient of each tube is 1.0 under the carrier condition)

Limit value

Ua………………1250 1500 1500 V

Ug…………………………-10 V

Ia………………135 115 150 mA

Pa(in)………………………………185 W

üg(pk)…………70 70 V

Ig………………15 15 mA

Pd………………11 7.5 W

Pout………………55 57.5 W

 

Class C R-F power amplification and oscillation (anode modulation)

 

(The maximum modulation coefficient of each tube is 1.0 under the carrier condition)

Limit value

Ua………………1000 1250 1250 V

Ug………………-155 -160 -500 V

Ia………………160 160 175 mA

Ig………………60 60 70 mA

Pa(in)………………………………220 W

Pa………………………………85 W

üg(pk)…………295 300 V

Pd………………16 16 W

Pout………………110 140 W

 

Class C R-F power amplification and oscillation (anode modulation) (if there is no modulation for each tube under keying conditions) limit value

 

Ua………………1000 1250 1500 1500 V

Ug………………-95 -100 -105 -500 V

Ia………………200 200 200 210 mA

Ig………………40 40 40 70 mA

Pa(in)…………………………………………315 W

Pa………………………………………… 125 W

üg(pk)…………225 230 235 V

Pd………………8.5 8.5 8.5 W

Pout………………130 170 215 W

 

Shipping

1.Important: Import duties, taxes and other customs related charges all are not included into shipping cost . Buyers bear all responsibility for all extra charges incurred (if any).

2. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

3. When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

4.Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound. The shipping rate can be showed at the Checkout page. There are two options for shippig as below.

A. Standard Shipping(≤2KG): The Post Registered Air Mail, USPS/ePacket, PostNL, Singapore Post, or DHL Global Mail

B. Express Shipping: EMS, DHL, UPS , or Fedex, Special Route.,etc. For faster shipping and smooth transaction, we will change the shipping company among them

C. Economy Shipping: China Air Post Mail / Parcel, Hongkong Air Post Mail / Parcel, or shipment by sea etc

Returns Policy

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Seller Guarantees

1. One year Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.

2. Defective items MUST BE reported and returned within the warranty period (with the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY. You agree to all of the above-listed policies upon ordering on our store.

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