Vinyl Phono stage with x10 transformer Amplifier

jukebox playback stuck remove process

normal sprag wheel stop position 

  When jukebox playback stuck some sequence then turn off jukebox power.  Fix machine jam problem and usage tool turn sprag wheel to original position.

 

 

 

 

 

Make sure sprag wheel push these two relay in close position.

 as below picture.

re-turn on power

after repair make sure handle in "ON" mode for jukebox playback

Garrade 401turntable cover setup

 

 

 

 

 

 

Audioengine B1 Bluetooth Music Receiver connect Tube codec for iPhone playback

 

Technics SP10 mk2 ~ repair 33,45,78 rpm select button

                     replace J-K flip flop and other logic gate

Garrade 401 tonearm setup-1

 

Garrade 401 tonearm setup

 

 

Condenser cartridge phono pre-amplifier

 

 

 

outside track

inner track 

 

outside track 

inner track

outside cartridge top view

inner cartridge top view