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ibba

  1. daylite

    Fisher 500C restoration and modification project

    PCBs: IBBA......EFB......Buffer......Phase Inverter TAPE MON to AUX input......Tone Control Bypass TAPE HEAD input to AUX input 500C selector switch function animation Loudness contour modeling and component selection This project is close to an end. A signal strength meter problem came up but...
    • daylite
    • Thread
    • bypass efb ibba loudness circuit phase inverter selector switch tape monitor tone control
    • Replies: 108
    • Forum: Fisher
  2. gvocale

    IBBA in Sherwood S-5000 II

    I am trying to install an IBBA board into a Sherwood S-5000 II I am using the following schematic, posted here on AK in another thread. If I measure resistance between the DC balance pot and ground, with the IBBA not plugged into the amp, by turning the potentiometer I swing between 15k ohms...
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