Power Supply for Vacuum Tubes Amplifier PSV68-420/-100 [Dual Voltage] [100-240VAC – +420V/-100V, 68W]

Units Sold: 10

Power Supply for Vacuum Tubes Amplifier PSV68-420/-100
[Dual Voltage] [100-240VAC – +420V/-100V, 68W]

$99.95

SKU: gra_57211 Category: Tags: , , , , ,

Power Supply for Vacuum Tubes Amplifier PSV68-420/-100 [Dual Voltage] [100-240VAC - +420V/-100V, 68W]

 

 

Listing includes:

 

  • Power SupplyPSV68-420/-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 PSV68-420/-100

 

 

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

 

 

Customs Policy

We as a seller do not receive from the buyer any charges any sales taxes and handling fees.
In any case we are not responsible for Tax(VAT) or any other Import duties or any other equivalent fees that arises upon delivery.
Please consult with your local Customs legislation and visit your local Customs department or website before making any purchases.

 

 

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