Sony VFET Amplifier Part 2

[WalterW]

Ah, all my dear VFET friends are still over here ..... Christophe, Dady, Jama
I'm recovering from a more than two weeks long influenza...haven't build anything, no energy to read or post on DIYAudio... I hate being sick

Nice to see you here

Walter

 

[dady]

Hi Walter querido, todos en la cofradía vfet. The knights of the Round SITs.
Be good soon from the influenza's side effects.

 

[jama]

Hi Walter. We are here, waiting for looking your spectacular buildings.
Best regards all

 

[Soundhappy]

Ah, all my dear VFET friends are still over here ..... Christophe, Dady, Jama
I'm recovering from a more than two weeks long influenza...haven't build anything, no energy to read or post on DIYAudio... I hate being sick

Nice to see you here

Walter

Hi WalterW

Thanks for kind words.
Yes is nice Vfet friends are all around there in diy hobby enjoyment
No doubt feel recover quickly in few days.
Posted today that sign your natural body defence are back and start on strong energy path.
Each day become more sunny

 

[dantwomey]

Will 500VA be enough for my VFET SIT-2?

AN-5222 - 500VA 22V Transformer - AnTek Products Corp

Regards,
Dan

 

[Soundhappy]

Will 500VA be enough for my VFET SIT-2?

AN-5222 - 500VA 22V Transformer - AnTek Products Corp

Regards,
Dan

Hi Dan
I belive 500 VA are plenty because in Vfet Part 2 Construction Notes Papa write is standard First Watt psu
that mean 300 VA and 22 secondaires are correct voltage
But this is two pairs version for simplified one pair VfetP2 version psu are total mystery i don't know ?

 

[Variac]

We've got the brackets to mount TO-3's and boards to heat sinks, on order. Papa has a prototype PCB he's going to test, and when it is proven right, he'll send us the Gerbers and we'll get the PCBs ordered. The PCBs have a bit less lead time so it should work out. I'm afraid it's looking like a solid 2 months at this point. But it will be worth it!

 

[Soundhappy]

We've got the brackets to mount TO-3's and boards to heat sinks, on order. Papa has a prototype PCB he's going to test, and when it is proven right, he'll send us the Gerbers and we'll get the PCBs ordered. The PCBs have a bit less lead time so it should work out. I'm afraid it's looking like a solid 2 months at this point. But it will be worth it!

Thanks to Mr Pass , Variac and all DiyAudio Store Team.
Such morning news make me feel constructive.
Best regards and have a nice day

 

[2 picoDumbs]

Nice work Variac and Papa

 

[Luke]

Hi Variac, what is happening with semis, will it be a kit with two semis per channel and a pair of pcbs?

 

[aoc]

Looking forward

 

[wdecho]

We've got the brackets to mount TO-3's and boards to heat sinks, on order. Papa has a prototype PCB he's going to test, and when it is proven right, he'll send us the Gerbers and we'll get the PCBs ordered. The PCBs have a bit less lead time so it should work out. I'm afraid it's looking like a solid 2 months at this point. But it will be worth it!

The news I have been waiting on. It sounds as though it is going to happen.

 

[Bones13]

And there was much rejoicing! Somewhat concrete timing, thanks.

 

[MASantos]

Any idea if this project can run on 32V rails unmodified?

 

[Nelson Pass]

Any idea if this project can run on 32V rails unmodified?

As a concept, yes. Some resistor values would want to be changed.

 

[Nelson Pass]

The news I have been waiting on. It sounds as though it is going to happen.

Of course it will happen. The boards have been shipped to me on the coast,
but I won't be able to work on them until the 1st of the month.

Also, we are considering upping the numbers available.

 

[WBS]

That will make even more diyers very happy!!! Upping the numbers that is.

 

[MASantos]

As a concept, yes. Some resistor values would want to be changed.

I'll finish my ba3 first and buy a kit then! I will be trying the babel fish J and VFET2 later then! I must not skip on the kits though!!

 

[CeeVee]

Of course it will happen. The boards have been shipped to me on the coast,
but I won't be able to work on them until the 1st of the month.

Also, we are considering upping the numbers available.

Can hardly wait.

 

[Bones13]

I will be working on an F6 myself.

Has anyone started a "group buy" VFET matching service? I have several sets that I'll make do with, but some better matched sets would be even better.

Hmm, I should get on drilling and mounting a socket for them on my test heat sink.