mono mono SE Tube amplifier 6DJ8/6JM6～3 6DJ8 replace by 6c45pi

 

https://kao211.blogspot.com/2021/02/mono-mono-se-tube-amplifier-6dj86jm62.html

w 6DJ8/6JM6 vs 6C45pi/6JM6
drive 3 ways horn speaker
decide 6c45pi drive 6jm6 is better

6c45p+211 playback left ch

6c45p+6jm6 playback right ch

6c45p+211 playback left ch

6c45p+6jm6 playback right ch

6c45p+211 playback left ch

6c45p+6jm6 playback right ch

3 ways speaker ~modify X'over of mid-tweeter circuit

https://kao211.blogspot.com/2017/05/3-ways-speaker.html

test 3 ways horn speaker
by DAC (w RIAA profile)

take off attenuator
for more crystal sound

Circlotron Amplifier ...placement push-6JM6/pull-6JM6 high voltage rectifier location~3

 

Pleasure to see ...the recoed of Made by Man The Jukebox Restorer

 

https://www.youtube.com/watch?v=Tm6nIe9N1_U

my record

the first running record ...playback speed need fix

my record

                

my record tube amp.

my record

my record

my record

my record

my record ~Lyric cover take off

fix light

my record~transform to Conti. platform

my record

magazine roller & turntable fix ...the first running record

my record

Circlotron Amplifier ...modify to 6JM6 Cathode output typology~2

 

before

20251013 record

take high voltage Cap.

-63V F-Self-biased source of negative voltage 

                

ref. circuit

Vinyl phonostage ...RIAA woofer profie w switch of First order ~ Second order

 

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

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

Vinyl RIAA profile evaluation

https://youtu.be/Imqdj9XM-Zc?si=Xn4Z2EBGSx0lMbZT

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