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Dynaco PAS Tube Preamplifier w/Phono Fully rebuilt w/ vintage 12AX7 & 5751 tubes

$ 422.37

Availability: 100 in stock
  • Modified Item: Yes
  • Modification Description: fully rebuilt, serviced and restored - see item description and photos
  • All returns accepted: ReturnsNotAccepted
  • Condition: New circuit boards & all new premium components. DC Power supply is all new & updated with diodes. 100% all new wiring. The 20/20/20/20 multi section capacitor is brand new. The rear I/O panel has a new updated Dynakit part and retains the full function of the original but allows better spacing to accommodate today's connector cables. New volume & balance controls, other pots were all serviced, all new switches were installed. The capacitors & resistors in the front panel were replaced and 1uF bypass caps were added on the bass controls. A new Dynakit adjustable LED now illuminates the front panel jewel. The power supply caps are CDE 2000uF. Original transformer. New feet on the bottom. Chassis, faceplate and knobs are original. Top cover is refinished in dark gray metallic. This unit plays great and sounds amazing. Hum free operation. Includes (2) Vintage 12AX7A Black Plate Raytheon & (2) GE JAN-5751 plus a NOS RCA 12X4 Black Plate rectifier tube.
  • Model: PAS Tube Preamp / Preamplifier
  • Brand: Dynaco
  • MPN: PAS
  • Custom Bundle: Yes
  • Bundle Description: tubes included
  • Country/Region of Manufacture: United States

    Description

    Fully rebuilt and restored 1967 Dynaco PAS Tube Preamplifier
    The unit was taken apart to the last screw, down to a bare chassis for cleaning, polishing and a total electrical / component level restoration.
    New reproduction circuit boards loaded with premium components like Multicap RTX and Mundorf Supreme capacitors along with Panasonic and Nichicon Icell (Italy).
    All the resistors are metal film and carbon film by Dale, Takman, PRP, TE Connectivity and Vishay fresh from Mouser and Digikey.
    The line stage tubes are matched Raytheon 1950's black plate 12AX7A labeled for Baldwin Organ Co. (very high quality tubes)
    The phono board has two matched NOS G.E. JAN-5751 with gray plates! (military grade communication tubes)
    This is 0.00 worth of tubes!
    The tube sockets on the circuit boards are the high grade ceramic type.
    The phono section of this preamp is simply outstanding, look it over, your vinyl will come alive!
    The rectifier tube is a NOS RCA black plate and sits in a new old stock Cinch brand Bakelite socket.
    The original style bias supply has two NOS CDE 2000 uF 75 volt electrolytic and now uses diodes to replace the outdated selenium rectifier.
    The power transformer is the original 1967 Dynaco PA-211 with cloth leads and works perfectly.
    The multi section filter capacitor is a brand new Dynakit part, it's the correct 20/20/20/20uF multi section cap rated for 475 volts.
    The original selector switch was tested, cleaned and totally rewired.
    A new volume and balance control were installed to obtain clean & equal output again through the channels.
    All of the remaining rotary controls were also tested, cleaned, serviced and reinstalled with all new wiring.
    All capacitors and resistors for the controls are new and the switches are all brand new by Alpha.
    The entire preamp has all new wiring.
    The rear panel is updated with the Dynakit full function version that retains all of the inputs and outputs & functions of the original PAS design.
    A phono grounding post has been added to the rear of the chassis.
    New wiring to and from the rear panel, all new resistors installed there also.
    The AC accessory sockets were reduced from four to a single outlet to help minimize electrical fields & interference.
    The empty holes are blocked off with a phenolic board to keep debris from getting in the lower chassis.
    A brand new polarized power cord and Heyco retainer are installed.
    Obviously the front panel/faceplate is original and is missing some lettering at the volume control position and the power switch.
    The new power indicator lamp is by Dynakit, it's an adjustable amber LED illuminating the original amber pilot jewel.
    The knobs are original and in great condition.
    New rubber feet with steel bushings are installed on the bottom plate.
    This PAS is simply fantastic sounding, why wouldn't it be?  All of the dated and out of spec parts are replaced with super high grade modern components.
    All of the original functions are intact and work. When you have a great design like this and bring it back to a like new condition it is a very satisfying experience.
    I love the sound of a healthy and proper working PAS. You will too.
    As with all vintage electronics I sell, there is no warranty or guarantee due to age of the original parts still in the unit and the nature of electronics.
    Guaranteed not to arrive damaged or DOA
    Professionally packed / ships insured / signature required
    No PO Box delivery, sorry.
    Sale is final, no returns, unit will arrive as described, no warranty
    Shipped insured for full value - signature required*
    Properly and carefully packed, Promptly Shipped
    No P.O. Box delivery - USA shipping addresses only
    *All insured shipments require a signature at time of delivery.
    If you cannot be home or have someone there to sign for your shipment please do not purchase this item. I cannot make changes to delivery for you - no exceptions. If the delivery is unsuccessful due to no signature provided, you will be responsible for the return shipping. This is
    due to
    eBay's
    policy,
    nothing on my part. Fair warning has been given, please make certain you will be home as delivery changes are not possible once shipped.
    Please see
    all my other listings
    for more great Dynaco and Dynakit gear!