OLD THREAD Hi-end phono preamplifier by Andrea Ciuffoli

[quanghao]

please let me know if you have not received PCB phono ASH

A. Phono D3A PCBs arrived :
1. pred
2. johngalt47
3. guglielmope
4. Loboone
5.johngalt47
6.tangmonster
7. Pilsern
8. jormajj

Phono D3A PCBs not arrived :
1. johngalt47
2. 2. vanofmonks
3. John Caswell
4. klaju1955
5. alex1946audio……..

PM: rollypolly. i seen it!
Thank
quanghao

 

[quanghao]

please let me know if you have not received PCB phono ASH

A. Phono D3A PCBs arrived :
1. pred
2. johngalt47
3. guglielmope
4. Loboone
5.johngalt47
6.tangmonster
7. Pilsern
8. jormajj
9.khaho

Phono D3A PCBs not arrived :
1. johngalt47
2. 2. vanofmonks
3. John Caswell
4. klaju1955
5. alex1946audio……..

 

[torsken]

please let me know if you have not received PCB phono ASH

A. Phono D3A PCBs arrived :
1. pred
2. johngalt47
3. guglielmope
4. Loboone
5.johngalt47
6.tangmonster
7. Pilsern
8. jormajj
9.khaho

Phono D3A PCBs not arrived :
1. johngalt47
2. 2. vanofmonks
3. John Caswell
4. klaju1955
5. alex1946audio
6. Torsken

 

[quanghao]

This is a phono completed, Please see!
I'm going to do about it.!
What have you done yet?

 

[quanghao]

and

 

[quanghao]

and

 

[quanghao]

Hi!
Phono D3A PCBs not arrived :
1. johngalt47
2. 2. vanofmonks
3. John Caswell
4. klaju1955
5. alex1946audio
6. Torsken

you cac check all again and please sen me again your address??
Thank !
I have plane Sent you the other PCB!

 

[johngalt47]

Quanghao,
Please see message #198.
Thanks!

 

[quanghao]

Hi!
Phono D3A PCBs not arrived :
1. johngalt47
2. 2. vanofmonks
3. John Caswell
4. klaju1955
5. alex1946audio
6. Torsken
7.John Caswell

you can check all again and please sen me again your address??
Thank !
I have plane Sent you the other PCB!

 

[klaju1955]

Hi!
Phono D3A PCBs not arrived :
1. johngalt47
2. 2. vanofmonks
3. John Caswell
4. alex1946audio
5. Torsken

you cac check all again and please sen me again your address??
Thank !
I have plane Sent you the other PCB!

2 sets of D3a baords arrived, thank you Quang Hao

 

[quanghao]

please let me know if you have not received PCB phono ASH

A. Phono D3A PCBs arrived :
1. pred
2. johngalt47
3. guglielmope
4. Loboone
5.johngalt47
6.tangmonster
7. Pilsern
8. jormajj
9.khaho
10. klaju1955
..........

Phono D3A PCBs not arrived :
1. johngalt47
2. 2. vanofmonks
3. John Caswell
4. alex1946audio
5. Torsken
......

 

[johngalt47]

I'm confused...

I received two boards for the tube amplifier. I don't know what ASH means...

 

[tangmonster]

If you ordered a set , and received a set , please take your name from the not arrived list.

quanghao does not understand what you are saying.

He does not understand what I am saying.
I Have no idea what ASH means ,but I do know that it is just text on the silkscreen.

 

[quanghao]

I received two boards for the tube amplifier. I don't know what ASH means...

ASH means: Andrea, Salas, Quanghao.
Thanks!

 

[johngalt47]

please let me know if you have not received PCB phono ASH

A. Phono D3A PCBs arrived :
1. pred
2. johngalt47
3. guglielmope
4. Loboone
5.johngalt47
6.tangmonster
7. Pilsern
8. jormajj
9.khaho
10. klaju1955
..........

Phono D3A PCBs not arrived :

2. 2. vanofmonks
3. John Caswell
4. alex1946audio
5. Torsken
......

I deleted my name from the "not arrived" section.

 

[tangmonster]

Hi all

i am currently busy ordering components. I have found these two fonfusing things on the pcb that I will post to possibly help someone else who is building this phono premamp.

on the pcb for power supply there are 3 x R13 reference designators they have values of
100R and 6.8k

if you compare the pcb to the schematic.
The 2x R13 100R on the pcb is R15 and R16 100r 2W on the schematic
R14 200R on the pcb is 220R 1/4W R13 on the schematic
ON the pcb R13 6.8K is R14 6.8k 1/2W on the schematic

In short ,the values on the pcb is correct but it does not correlate back to the powersupply schematic.

 

[quanghao]

Hi!

R14, 15 connect +- filament to GND. The value 100R/2w or no neeed it, So you connect - filament to GND.

one PCB R 13 = 6.8K, it is ok!


Attention on the pcb there is a printing error:
At in - put:
Island between GND and place In.

 

[klaju1955]

Hi!



Attention on the pcb there is a printing error:
At in - put:
Island between GND and place In.

I don´t understand were is the error?
You have picture?

Klaus

 

[quanghao]

I don´t understand were is the error?
You have picture?

Klaus

Hi! you can see it!

 

[quanghao]

AND SSHV for phono