-40%

Dynaco/Dynakit ST-70 Tube Amplifier PC-3 Circuit Board + 2 NOS Sylvania Tubes

$ 52.77

Availability: 100 in stock
  • MPN: PC-3
  • Custom Bundle: Yes
  • Condition: New
  • Brand: Dynaco
  • Bundle Description: Dynakit PC-3 driver board and two NOS 6GH8A tubes as pictured
  • Type: Tube Amplifier
  • Model: Dynakit ST-70 Driver Board / Circuit Board
  • Country/Region of Manufacture: United States
  • All returns accepted: ReturnsNotAccepted

    Description

    Brand New - Never Used - Just Assembled - Genuine Dynakit ST-70 Driver
    Board (6GH8A Tube)
    This PC3-B board will help restore that old ST-70 to its sonic potential
    Acquired direct from Dynakit just last month - 06/2021
    Does NOT use 7199 Tubes - this is a 6GH8A / 6U8A Driver Board Only
    Sale includes the two NOS Sylvania 6GH8A Vintage Tubes shown in the photos (with original boxes)
    This board has the upgraded CDE 940 series (.1uF @ 600 Volt) and (.22uF @ 600 Volt) capacitors
    All the resistors are high grade 1% metal film, carbon film and metal oxide types
    There are no instructions included and I do not provide technical or installation support.
    The Dynaco 70 manual is free to download and contains step by step instructions.
    If you are not well versed in electronics you should have the board installed by a qualified professional. There are lethal voltages present under the amplifiers chassis that can cause serious injury or death. If you are unsure of your ability, please heed this advice or simply do not purchase this item as it is meant for those with adequate electronic skills, proper tools, a working knowledge of electronics and a clear understanding of what safety risk is involved with the installation.
    Guaranteed great sound with this board, I have used this setup dozens of times and it is really an amazing sounding board. Expect to hear the best sound after 8-10 hours of "break in time". The longer it plays  the better it will sound.
    To ensure the best sound and overall results you should have a good working closely matched set of output tubes and good strong rectifier tube.
    It is
    recommended
    to also replace the bias supply section capacitors, resistors and also the multi section capacitor while upgrading to a new circuit board.
    Ships USPS Priority Mail on the next day after your purchase and cleared payment.
    Well packed for Secure Travel
    please see my other listings for more Dynaco parts, rebuilt and new amplifiers/preamplifiers
    all sales final, no refunds, no returns, no exchanges, no partial refunds, no games