Frank Sol
Lunatic Member
AZDean... I bought my JD9 used about 6yrs ago. Fortunately it was an Underwood modded unit
Of the many things they did these are just three
Install four hi quality coupling, bypass and power supply capacitors
Eight Riken Ohm ½ and one watt 1% carbon com. resistors added in the signal path
Four International Rectifier Hexfred ultra-fast soft recovery diodes installed in the power supply
Of the many things they did these are just three
Install four hi quality coupling, bypass and power supply capacitors
Eight Riken Ohm ½ and one watt 1% carbon com. resistors added in the signal path
Four International Rectifier Hexfred ultra-fast soft recovery diodes installed in the power supply