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  1. #1
    The next big thing
    Join Date
    Mar 2010
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    104

    Default FS Rat Hotrod Valve Special, with Valve Buffered Series / Parallel FX Loop

    For sale is my Rat Hotrod Valve Special, in truly immaculate condition and with a host of extras...

    - Class A, cathode bias, dual parallel single ended (two EL84 valves)

    - Bias, gain, bright switches

    - Valve-Buffered Effects Loop
    a. Switchable between Series & Parallel
    b. Send Level
    c. Mix Level

    - Output Power Reduction / Power Scaling (OPR1 and OPR2)

    - Hammond 125DSE output transformer with switchable output impedance

    - Dummy load

    - Line out

    - Headphone out

    10 Watts Clean (RMS) and about 22 Watts Peak Power

    It is a fairly standard Design up to the Master Volume, after that it Goes to the FX Valve - - Cathode Follower, Low Impedance Send Signal - Return buffered Series or Parallel.

    Then on to a Final Driver, 12AX7 dual Triode running in Parellel. This gives a nice strong Driver Signal for the 2x EL84s.

    He has put a Small 'Trimmer' pot on the Final Driver so that the end Gain can be adjusted if required.

    ...and it is unbelievably quiet.

    £500



    Last edited by jaymenon; 16th January 2013 at 11:48 PM.