WTD: Sony DA-2801 differential amplifier part…

After I had great help here searching for a specific grounding post for my ongoing Sony PS-X9 turntable restoration I’m encountering new problems regarding the inbuilt phonopreamplifier of the deck…

There is one defective DA-2801 integrated amplifier module in the MC headamp and since it’s potted in it’s little enclosure there is no way for me to repair it…

The same DA-2801 module was used at least in the Sony HA-55 headamplifier and the Sony TAE-88 preamplifier…

If anyone has a spare part DA-2801 or a defective HA-55 with one chanel working I would be happy to buy…

Any other ideas how I could solve this problem are very welcome…

I know of someone who reproduces these modules, but this takes a longe time for preordering and I’m trying in my restorations to get the gear as original as possible…

Thanks for your advices and your help…

Best regards

Michael