The diyAudio Firstwatt F6

[marconi118]

2 transformers for me

 

[Soundhappy]

Jensen & PCB

One thing worth mentioning, the diyAudio store is looking into stocking the Jensen transformers, probably bundled with the PCB. (The PCB will also be available separately.) This way sourcing the transformer will be easy.

I'm still interested in doing some sort of group buy for the transformers. Just extremely occupied with other things too. And I'm a caregiver for a parent.

Hi Diyers
Waiting time...?
Please i don't have intention to stress somebody
is more my personal diy builds time agenda.
Hope this be not long wait period...end of this year ?
Best regards 🙂

 

[cwtim01]

All parts ready, just waiting for the PCB to become available ...

 

[TheAnaesthetist]

2 pcb and transformers please.

 

[jugi63]

Anyone know what's up with the Panasonic TS-UP cap line? (Digi-Key: Part Status: End of Life; Last Time Buy Date: 03-31-2015. Minimums may apply.) They are soon to be discontinued / extict. This puzzles me since it seems to be the norm even to many really high end manufactures...

What would be a reasonable (same sounding) subsitute? This maybe:MAL225650223E3 Vishay BC Components | 4645PHBK-ND | DigiKey

Any recomendations Nelson?

 

[6L6]

Panasonic is discontinuing all through-hole capacitors.

Buy the Panasonic now while you can get them. They have a fantastic shelf life, they are not the capacitors of the 70s-80s.

When you can't get them anymore, Nichicon, Elna, Cornell-Dublier are all very nice capacitors.


cwtim01 - the F6 PCB from the diyAudio store will be optimized for the IRFP240, not the SemiSouth. (It will probably work... but the schematic we're working from is from Nelson for the Mosfets, so no promises...) I would suggest the Tea-Bag PCB, it's good for any version.

 

[labjr]

Does Nelson use the IR MOSFETs or is he still using Fairchild parts?

 

[6L6]

IR. This is true (as far as I know...) for the Pass Labs items as well.

Although there may be some Firstwatt that use the Fairchild, I honestly don't know.

That said, I have used both the Fairchild and IR in various builds and like both.

 

[jugi63]

I've got the SS version - and most of the parts for a mosfet version. Have you compared? How do they differ?

 

[Nelson Pass]

I've got the SS version - and most of the parts for a mosfet version. Have you compared? How do they differ?

Perhaps you would enjoy the comparison between them in the write up on 6moons.

😎

 

[cwtim01]

... the F6 PCB from the diyAudio store will be optimized for the IRFP240, not the SemiSouth ...

Thanks 6L6 for the hint, indeed this PCB is missing the source resistors at the frontend, as well as the pots at the output devices.

I'll probably try to source the permander boards if I can.

 

[jugi63]

Perhaps you would enjoy the comparison between them in the write up on 6moons.

You are right of course... I forgot. stupid me. 😉

 

[John Caswell]

F6 parts

Hi,
I would like 4 transformers and 4 PCB please

John

 

[solarnicholas]

4 transformers and 4 PCB's Please

Nick

 

[koyote]

Two transformers for me.

Kalle

 

[Tom V]

I am interested. This would be my first build, so maybe two transformers and three PCB's for me.

 

[vdi_nenna]

Why 3 pcbs?

 

[Tom V]

>Why 3 pcbs?

First build. So I can screw one up and still end up with a stereo pair.

 

[Nelson Pass]

Anyone cautious enough to buy three is only going to need two.

😎

 

[Zen Mod]

save third and buy a Tree