Gyraf Pultec without output trafo???

[solkatten]

Ohhhh but should we use toroidal transformers. Is there any problem if we use 2 ordinary transformers. 230: 12 and 12: 230 as specified in the circuit

Now not really. EI trafos can generate more noise

 

[calvinjosephalex]

Ohhh so you're saying it's important to use toroidal transformers?

 

[solkatten]

Ohhh so you're saying it's important to use toroidal transformers?

No its hard to say how noisy a trafo is in real life. Expect some noise issue. I build a pulltec with EI trafo and unshielded inductor. It has some noise. If you want really quite I think you should shield the inductor and take good care of grounding scheme...

 

[calvinjosephalex]

Ohhhh ohkkk... And about the inductor. Which inductor are you referring too?
The one in the filter section?

No its hard to say how noisy a trafo is in real life. Expect some noise issue. I build a pulltec with EI trafo and unshielded inductor. It has some noise. If you want really quite I think you should shield the inductor and take good care of grounding scheme...

 

[solkatten]

Ohhhh ohkkk... And about the inductor. Which inductor are you referring too?
The one in the filter section?

Yes the one in the filter section. In the original Pultec the filter section was shielded and encapsulated. In my latest inductor eq build. I sheild the inductors + I use external PSU. But u never Know how much of problem its going to be...

 

[calvinjosephalex]

I need to ask you one thing. I didn't actually get the coil type inductor. I got some which looks like resistor. The seller told me that it was fine. Is that ohk?
I'm kinda new to electronics.

 

[solkatten]

I need to ask you one thing. I didn't actually get the coil type inductor. I got some which looks like resistor. The seller told me that it was fine. Is that ohk?
I'm kinda new to electronics.

I wind my own but all coils are prone to pick up noise. Because its only the high freq that goes trough the inductor it wont saturate that easy so you should be ok...

 

[calvinjosephalex]

How do you wind coils can you please help me

 

[solkatten]

How do you wind coils can you please help me

If you go to gyraf.dk in the Pultec section you have Steffens diy inductor. How to wind calculate diy inductors its fun

 

[calvinjosephalex]

If you go to gyraf.dk in the Pultec section you have Steffens diy inductor. How to wind calculate diy inductors its fun

Ohhh ohkkk. Do you think the cores and other parts are hard to get.?

 

[calvinjosephalex]

And what about the enclosure as you said for shielding the inductor

Ohhh ohkkk. Do you think the cores and other parts are hard to get.?

 

[solkatten]

And what about the enclosure as you said for shielding the inductor

Mu metal is the best or a extra smal enclousure

 

[calvinjosephalex]

Mu metal is the best or a extra smal enclousure

Is the copper wire and other materials easy to obtain??

 

[solkatten]

And what about the enclosure as you said for shielding the inductor

No they are everywhere. Look for N48 material RM8 core most eq:s use them

 

[calvinjosephalex]

No they are everywhere. Look for N48 material RM8 core must eq:s use them

I didn't quite understand you?

 

[solkatten]

No they are everywhere. Look for N48 material RM8 core must eq:s use them

No they are everywhere. Look for N48 material RM8 core must eq:s use them

Look for enammeled copper wire

Is the copper wire and other materials easy to obtain??

 

[calvinjosephalex]

Ohhh ohkkk is there anyother specifics like gauge or size I should I consider

Look for enammeled copper wire

 

[solkatten]

I didn't quite understand you?

They should be easy to get

 

[calvinjosephalex]

They should be easy to get

Thank you sir!
Really appreciate it

 

[solkatten]

Ohhh ohkkk is there anyother specifics like gauge or size I should I consider

0,1 mm should cover it