transistors kit for two F5 channel`s

[erez1012]

hi
i start my dream project: build F5 🙂
i order the pcb from diy as a start.

what is the best why(and chip) to bay this transistors kit for two F5 channel`s?
thanks

 

[Zen Mod]

mosfets - anywhere

jfets - Parts

or search for member h_a

 

[delecoy]

Forum member h_a has genuine, and very well matched transistors for the F5. All that you will need from one source. Do not use eBay.

 

[delecoy]

Barely beat me 😉

 

[Soundhappy]

I have buy parts from this nice guy
and is real parts source maybe try this one🙂

4 X IRFP240 IRFP9240 Matched Quad | eBay

Best regards

 

[Soundhappy]

Yes Ebay is a risk way but boutique AudioFet with guy named Alweit
is one genuine vishay transistor source maybe help if not find on DiyAudio.
DiyAudio store is support community and buy first place
because is a best diy forum on planet earth😀

 

[nigelwright7557]

Forum member h_a has genuine, and very well matched transistors for the F5. All that you will need from one source. Do not use eBay.

Be wary of ebay cheap parts.
I bought some irfb4227's and they blew very easily compared to the genuine parts.

 

[erez1012]

thanks for the info. i tray to contact with h_a 3 days ago but he dont answer, i cant wait 🙂

i wait few more days
thanks

 

[erez1012]

thanks for the info. i tray to contact with h_a 3 days ago but he dont answer, i cant wait 🙂

i wait few more days
thanks

 

[erez1012]

thanks for the info. i tray to contact with h_a 3 days ago but he dont answer, i cant wait 🙂

i wait few more days
thanks

 

[erez1012]

thanks for the info. i tray to contact with h_a 3 days ago but he dont answer, i cant wait 🙂

i wait few more days
thanks

 

[erez1012]

sorry its my computer

 

[erez1012]

hi soundhappy
i bay from AudioFet on ebay, i hope his genuine.
i speek with him and go to his home 🙂 defenetly his genuine

 

[Soundhappy]

hi soundhappy
i bay from AudioFet on ebay, i hope his genuine.
i speek with him and go to his home 🙂 defenetly his genuine

Hi Erez1012
Yes this is one honesty Ebayer i like buy from him custom values resistors too😉
Have a nice day🙂

 

[dazed2]

Having tried both, I liked the Toshiba 2SK1530/2SJ201 mosfets much more than the IRFP ones.
You can get the Toshiba ones from zhoufang, he sells the real thing. He's also a member here.

 

[Soundhappy]

Having tried both, I liked the Toshiba 2SK1530/2SJ201 mosfets much more than the IRFP ones.
You can get the Toshiba ones from zhoufang, he sells the real thing. He's also a member here.

Hi Dazed
Interesting information.
I am in way to diy one F5 and F4
What arguments about to use Toshibas 2SK1530/2SJ201?
Can You describe the benefits in sound ?
Thanks
Best regards
🙂

 

[dazed2]

The Toshiba have a more warmer organic sound. The IRFP is more sterile but somewhat more detail.
I've had my F5 on several different systems at friends place where they heard the amp with both the Toshiba and the IRFP and everyone of them liked the Toshiba's more.
The Toshiba's sound more "musical" whatever that means 🙂

Oh please note for those that want to try and swap transistors, the Toshiba's have a very different bias rating than the IRFP. So turn down the bias fully before installing the Toshiba's. If you don't you may fry them! I forgot to do it when I swapped the Toshiba back in from trying the IRFP. Luckily I had the DMM connected and it read almost 2V bias, so I quickly turned off the amp and luckily didn't fry anything.

 

[labjr]

Where do the Fairchild parts fall soundwise?

 

[erez1012]

thanks for the info, for my first project i think i tray nelson recommendation.

 

[dazed2]

Where do the Fairchild parts fall soundwise?

Not sure, although I do have all three sitting at home, I've only ever tried Toshiba and IRFP, didn't really have much motivation to try another swap 😛
Its a lot more work than swapping tubes 😀

erez1012 :
Its a good idea to build it stock first. It takes almost 200-300 hrs before everything gets burned in anyways. Then if you can always play around with modifications later.