H I F I S P O T
Features


Uncompromised Fidelity: The HiFi Polymer Teflon Upgrade

Take your single-ended triode (SET) or push-pull tube amplifier to its absolute performance limit with the Psvane 845-PT Classic Series Vacuum Tube. Specifically engineered for discerning audiophiles, the 845-PT features a state-of-the-art structural enhancement: a high-density, high-insulation Polymer Teflon (PT) base joined with heavy gold-plated connection pins.

This advanced material approach maximizes thermal stability and isolates the internal components from mechanical microphonics and structural vibrations. The result is an incredibly ink-black noise floor, stunning mid-range transparency, and tightly controlled, authoritative low-frequency dynamics.

Key Features

  • Polymer Teflon (PT) Base: Offers vastly superior dielectric stability and vibration dampening over traditional ceramic or standard metal bases under high-voltage configurations.

  • Oxidation-Free Gold Pins: Ensures zero signal degradation across a lifetime of high-power operations.

  • Holographic Soundstage: Tuned to extract micro-details, natural acoustic air, and deep three-dimensional instrument separation.

  • Strict Factory Matching: Every tube is systematically burned-in and tested at the factory for mutual conductance (S) and plate current (I_b) balance.

ParameterValue / Rating
Filament Voltage (V_f)10 V
Filament Current (I_f)3.25 A
Max Anode / Plate Voltage (V_a)1250 V
Max Anode Dissipation Power (P_a)100 W
Grid Voltage (V_g)-200 V to 0 V
Amplification Factor (μ)~ 5

  • Direct Compatibility: Seamless, premium drop-in upgrade for standard 845, 845-T, 845A, 845B, and 845C tubes. (Always confirm your amplifier's manual instructions for biasing when introducing new power valves).



What's Included

  • [1x Matched Pair] Genuine Psvane 845-PT Vacuum Tubes
Warm note

Please kindly keep in mind that we are a seller in China, and you are doing international business, so the delivery may take a bit longer time than your deals in domestic..
  Please kindly leave  5 ★ DSR (detailed seller rating) and POSITIVE feed back to us if you are happy with the transaction, both of them are ultimatly important to us. if you are not happy, please DO communicate with us and let's have the opportunity to make you satisfied before you leave any non-five stars DSR, poor feedback and open any dispute/case.
   

You will be welcomed to communicate with us by eBay message system.  

Best regards.
Shipment
     
  •       Items will be shipped within 1 business day on payment received.
           
    •      
  •       Items are shipped from Hong Kong using Airmail, reach most of the                                                      countries within 10 to 20 business days.
           
    •      
  •       Delivery time depends on destination and other factors, it may takes up                                                 to 20 business days.                                                                                                                                                                 
Country

Delivery Time

Working Days (not                                                           including holiday)
5-7
8-11
12-14
15-19
20-22
>29
Working Days + Saturday                                                           + Sunday
5-9
10-15
16-20
21-25
26-30
>38
United States
Rate (item arrived)
5 .1%
50.1%
29.6%
10.5%
4.7%
Refund
United Kingdom
Rate (item arrived)
9.9%
63.2%
19.1%
3.4%
4.4%
Refund
Australia
Rate (item arrived)
21.4%
50.0%
14.3%
7.2%
7.1%
Refund
France
Rate (item arrived)
10.5%
28.6%
43.8%
10.1%
7.0%
Refund
Germany
Rate (item arrived)
11.1%
22.2%
30.3%
20.9%
15.5%
Refund
Canada Rate (item arrived) 0.0% 47.1% 31.4% 17.6% 3.9%

Refund

Spain
Rate (item arrived)
3.5%
25.0%
47.9%
12.9%
10.7%
Refund
   

International Buyers – Please Note:
      Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.   

Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.   

We ship to PayPal registered address only. Please provide your correct detailed address and full name in PayPal. A phone number is recommended for more accurate delivery.   

We will put legal effort to minimize any GST or V.A.T. or other Import Taxes. If applicable,however,any tax/duty would be excluded from the price.

Most items are shipped from China via Hong Kong by air mail (without tracking number) or registered post with tracking number, Shipment takes 6-45business days to arrive, tt ultimately depends on the courier service company.

we don't ship to Italy by economy shipping.if you want the item need choose express shipping.

We promise each item would be shipped, but sometimes less than 0.5% packages might be lost on the way, you could choose to let us resend a same item or ask for refund.   

 
Payment
  • We accept payment by Paypal Only.
DataCaciques