Description

Power Supply for Vacuum Tubes Power Amplifier PSV68 - 420/-100 Dual Voltage 100-240VAC Power Supply for Vacuum Tubes Amplifier PSV68-420/-100 [Dual Voltage] [100-240VAC - +420V/-100V, 68W] Listing includes: Power Supply [ PSV68-420/-100] [Dual Voltage] Dear customers! If you have ANY questions, PLEASE ASK us Description: Switching Power Supply PSV68-420/-100 specifically designed for powering Vacuum Tubes in Tube Audio Amplifiers. The PSV68-420/-100 Power Supply provides two stabilized voltages: 420 Volts for the Anode-Cathode of the Tube, and a negative voltage of -100 Volts for the grid bias. Stabilized voltage is critical to ensure high-quality sound. The Power Supply is based on fly back technology with the 420V output stabilized through feedback (via an optocoupler), while the negative -100-volt output is derived from a separate winding and stabilized using a linear regulator. In the audiophile world, Tube Amplifiers are considered the gold standard for high-quality sound, making their assembly a popular hobby among analog sound enthusiasts. A key component of such Amplifiers is the Power Supply, which ensures a stable voltage for the Tubes. This stability is necessary to reduce nonlinear distortions that occur in Vacuum Tubes. Key Features of the PSV68-420/-100 Power Supply: 1. Soft Start: Power supply prevents current spikes during startup. 2. Voltage Stability: the high precision of the output voltages ensures the Tubes operate within the linear region of their characteristic curves, providing low distortion and a consistent gain factor. 3. Absence of Acoustic Noise: most switching Power Supplies emit a noticeable high-pitched noise, which is completely unacceptable for audio amplifier use. Since this Power Supply is specifically designed for Tube Audio Amplifiers, special care has been taken to ensure it operates silently. The Power Supply is also designed to operate without a cooling fan, as any fan introduces noise. 4. Reliability and Longevity: this Power Supply is specifically designed for use with Vacuum Tubes, offering high efficiency (up to 86%) and the capability to operate in a closed enclosure without active cooling at loads up to 68 watts. The Power Supply uses high-grade capacitors. If you are assembling a Tube Amplifier or looking to upgrade an existing one, the PSV68-420/-100 Power Supply is an essential component, ensuring high sound quality and reliable operation of your device. Specifications: Output Voltage CH1 (Positive 420V): +420 VDC (adj. 380 – 430V) Output Voltage CH2 (Negative 100V): -100 VDC Output Current CH1 (+420V): 160 mA (max. 240 mA) Output Current CH2 (-100V): 20 mA Output Power CH1 (+420V): 68 Watt (max. 100 Watt) Output Power CH2 (100V): 2 Watt Input voltage range: 85 – 264V AC Input Frequency: 50/60Hz Input connector: B3P VH Output connector: Mini-Fit MF-8MA Efficiency: up to 86% Ripple and Noise +420V/-100 (Max.): 200 / 50 mVp-p Weight: 340 g Dimensions: 115x104x56mm Power Supply for Vacuum Tubes Amplifier Dear customers! If you have ANY questions, PLEASE ASK us Shipping and Return information All Items are shipped from Ukraine Via International registered Airmail Shipments are made within 1 business day After the payments are received and verified It takes about 4-7 days via UPS Express delivery It takes about 10-18 days via Standard shipping It takes about 35-45 days via Economy shipping We combine multiple Items to save on shipping UPS Express Shipping time (recommended): Europe: 3-5 days Germany: 3-5 days USA, Canada: 4-7 days Asia, South America: 5-7 days Australia, New Zealand: 5-7 days Africa, Central America: 5-7 days Standard Shipping time: Europe: 10-12 days Germany: 10-12 days USA, Canada: 10-15 days Asia, South America: 10-18 days Australia, New Zealand: 12-18 days Africa, Central America: 12-18 days Economy Shipping time: Europe: 25-30 days Germany: 25-30 days USA, Canada: 30-35 days Asia, South America: 35-45 days Australia, New Zealand: 45-55 days Africa, Central America: 45-55 days Return Policy All Returns are accepted For Return you should contact Us within 14 Days after receiving the Item Refunds are made as Money back or Replacements (buyer’s choice) Return Shipments are paid by the buyer No restocking fees are charged Dear Customers! If you have ANY questions, PLEASE ASK US