mono tube amplifier volume trimmer need to replace a pair of trimmer for L-R channel together

 

20251225 record

long time waiting for trimmer purchase 

                            L channel after replacing the new volume trimmer 

replacing trimmer already 

R channel still usage old trimmer 

new volume trimmer 

                                                old volume trimmer 

                                                new volume trimmer 

 old volume trimmer 

two channel trimmer volume replaced

https://www.youtube.com/watch?v=olFzozK9ric&t=10s

the RIAA similar between upper link and this one

YT download mp3 playback w DAC+RIAA

45rpm vinyle playback 

Vinyle phonostage RIAA low volume need modify