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| https://www.youtube.com/watch?v=Tm6nIe9N1_U |
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| my record |
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| my record |
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| my record tube amp. |
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| my record |
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| my record |
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| my record |
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| my record |
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| my record |
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| my record |
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| my record |
2026年3月5日 星期四
Pleasure to see ...the recoed of Made by Man The Jukebox Restorer
2026年3月1日 星期日
Cyclotron Amplifier ...modify to 6JM6 Cathode output typology~2
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| before |
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| 20251013 record |
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| take high voltage Cap. |
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| -63V F-Self-biased source of negative voltage |
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| ref. circuit |
2026年2月18日 星期三
Vinyl phonostage ...RIAA woofer profie w switch of First order ~ Second order
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| RIAA woofer profie of Second order |
RIAA profile in first order
RIAA profile is First order+Second order
RIAA profile in first order
RIAA profile is First order+Second order
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| left channel playback only |
RIAA profile in first order
RIAA profile is First order+Second order
final tuning first order+2nd order playback
RIAA profile is First order+Second order
Left Channel playback only
RIAA profile is First order L Channel playback only
RIAA profile is First order+Second order
Left Channel playback only
小雜魚逆流而上
2026年1月24日 星期六
Vinyl RIAA profile evaluation
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| https://youtu.be/Imqdj9XM-Zc?si=Xn4Z2EBGSx0lMbZT |
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| 33 rpm 8.1'' |
AMI H200 playback Danny Boy
verify RIAA profile
EP 7'' 45 rpm everybody wants to rule the world
tear for fear
EP 7'' 45rpm
33rpm
Violin Concerto No. 4 in D Major, K. 218: I. Allegro
Martzy
vinyl 45rpm
2026年1月22日 星期四
re-modify vinyl phonostage RIAA profile~2 2026 Jan
after re-modify RIAA profile
reduce the sound of high volume ~last time
the sound of high volume ~last time
this time modify
vinyle 33rpm playback Eva Yesterday R channel only
this time modify
vinyle 45 rpm playback 鄧麗君 R channel only
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| 45 rpm vinyle VANESSA FENANDEZ |
last time modify
vinyle 45 rpm playback
this time modify vinyle 45 rpm
playback VANESSA FENANDEZ R channel only
the RIAA profile playback w DAC+RIAA
YT download mp3 of VANESSA FENANDEZ
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| https://www.youtube.com/watch?v=olFzozK9ric&t=10s |
2026年1月17日 星期六
re-modify vinyl phonostage RIAA profile
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| 20251227 mofify record |
20251227 playback record
reduce the sound of high volume
after re-modify RIAA profile reduce
20251227 playback record
the sound of high volume
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| 45rpm EP 7'' |
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| to Amy. |
mono tube amplifier volume trimmer need to replace a pair of trimmer for L-R channel together
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| 20251225 record |
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| long time waiting for trimmer purchase |
L channel after replacing the new volume trimmer
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| replacing trimmer already |
R channel still usage old trimmer
new volume trimmer
old volume trimmer
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| two channel trimmer volume replaced |
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| 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
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| 45rpm vinyle playback |
Vinyle phonostage RIAA low volume need modify
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