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F4 matched FET's

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#61
twitchie said:
So for a complete set, including jfets and TL431, it will be

35 (fets) + 8 (shipping) + 1.72 (4% paypal) = 44.72 Euro for 1 set
70 (fets) + 8 (shipping) + 3.12 (4% paypal) = 81.12 Euro for 2 sets

I'm not sure if 3 sets will still fit in the same envelope, but can you please confirm (Tarasque) if these numbers are right?

Thanks
Click to expand...


To confirm:
35 (fets) + 8 (ship) + 1.72 (4% ppal) = 44.72 Euro for 1 set
70 (fets) + 8 (ship) + 3.12 (4% ppal) = 81.12 Euro for 2 sets
105 (fets) + 8 (ship) + 1.72 (4% paypal) = 117.52 Euro for 3 sets.

3 sets still can be shipped for 8 euro.
 
#70
Dennis Hui said:
Hi Tarasque,

Can you verify the number of kits that can be mailed for 8 EURO?

Another question: Will you be matching the FETs at the F4's
bias level (~0.5A each?)?

Thanks,
Dennis
Click to expand...

Dennis,

2 sets is no problem, 3 sets will be on the limit.

My standard setup is at 220mA. If you increase this, the thermal dynamics will change and this decreases the accuracy of the reading. I will have a look if I can repeat the accuracy at 500mA.

I found acceptable deviation when you change the bias between 100 and 700 mA while the matching was done at ~200 mA.
 
#74
rdk845 said:
I can confirm one 2 sets of FETS with 2SK170/SJ74.

Tarasque,

Unfortunately, the fourm site is still not allowing me to send e-mails. Could you e-mail me and let me know paypal address information?

Thanks,
Click to expand...


I think he will be posting the information for that soon along with the payments required.

Jase
 
#75
rdk845 said:
I can confirm one 2 sets of FETS with 2SK170/SJ74.

Tarasque,

Unfortunately, the fourm site is still not allowing me to send e-mails. Could you e-mail me and let me know paypal address information?

Thanks,
Click to expand...

I do not like to post my paypal details in the forum. Pleas send a mail to bosk27-at-hotmail-dot-com. (my spam account)

Thanks.
 
#76
Payment information and ordering

All,

If not done already, pls confirm today!
I will send the payment info per mail tomorrow and I expect payment by next sunday at the latest. I need to order Monday latest in order to get the prices mentioned.

I will only order fets for sets that are confirmed and payed. Sorry!
 
#79
Order now frosen

New orders are no longer possible in this buy.

Every one that confirmed by mail received the information for payment.
I will be ordering enough fets to create 43 sets, the total interest so far.
Depending on my luck might be able to create more sets, I will know more about that after matching.

Thanks...Marcel.
 
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