• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

calculate

  1. B

    Upgrading Vintage Marantz 1030 Power Supply to Zener Transistor

    Hi, First time poster. I've started cleaning up and recapping a Marantz 1030 as a summer project. It's going well. However, one of the things I'd like to do - due to its relative ease - is upgrade the power supply to a better level of regulation. To do this I'm going to replace the resistor to...
    • benhodgson
    • Thread
    • calculate marantz modification modifications power power supply transistor upgrade upgrades improvements zener diode
    • Replies: 23
    • Forum: DIY
  2. D

    Marantz 1122DC VI limiter

    Hello again, I started restoring a marantz 1122dc with a blown output stage and someone's attempts to repair it. The outputs had been replaced by BD911 and BD912 which didn't seem a good idea as they are way slower than the original nec transistors. I have been advised to replaced the 2 pairs...
    • depaj
    • Thread
    • calculate marantz 1122dc vi limiter
    • Replies: 0
    • Forum: Solid State
Back
Top Bottom