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K250-4 amp rebuild parts [message #27629] Thu, 09 January 2020 12:29
johnnysynth is currently offline  johnnysynth
Messages: 40
Registered: June 2018
I'm trying to source ALL the devices for a complete
pre-amp/amp rebuild for my K250-4 monster
I've replaced the two 'big can' electrolytics'
and I'm starting in on the two pre-amps
The first obscure part is one 14pin DIP dual op-amp
XR4739/nte725 uA739
The amp DOES work but it's noisey
and the high end distorts when I
play my Wurlitzer Electric Piano thru it

Jake Welsh
808 755-5886
Saint Augustine, FL 32084

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