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Old Yesterday, 01:35 AM   #601
Dennis Hui is offline Dennis Hui  Canada
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I contacted a seller about vfets not arriving. No response. Now ebay is blocking
me from trying to contact the seller again. Grrrr....

This is probably a sign I shouldn't be building any more amps...
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Old Yesterday, 02:21 AM   #602
pras1170 is online now pras1170  China
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Location: china shenzhen
Quote:
Originally Posted by Dennis Hui View Post
I contacted a seller about vfets not arriving. No response. Now ebay is blocking
me from trying to contact the seller again. Grrrr....

This is probably a sign I shouldn't be building any more amps...
You mean: you bought THF-51S from a Japanese seller, so far, you haven't received the package yet, have you?
A few days ago, someone said, 2 months ago, I haven't seen the package yet. Is that you?

You can let the friends in the forum send you an e-mail to the Japanese seller and let him contact you.
Or you can re-ask the seller questions, re-enter the seller's shop, click on the product, and then consult, can contact the seller
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Old Yesterday, 01:28 PM   #603
SPWONG is offline SPWONG  Hong Kong
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Default Ranking of Optocoupler PC817

Just noted that there are rankings for the optocoupler PC817, namely A, B, C & D for different current transfer ratio.
What ranking should I use?
Thanks.
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Old Yesterday, 01:40 PM   #604
Zen Mod is offline Zen Mod  Serbia
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I used what I got - plain PC817 ........ however , I'll check later in vivo and will let you know
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Old Yesterday, 02:32 PM   #605
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally Posted by SPWONG View Post
Just noted that there are rankings for the optocoupler PC817, namely A, B, C & D for different current transfer ratio.
What ranking should I use?
Thanks.
I have PC817C in my Babelfish M25 and SissySIT prototype , and I'm sending the same in my option #2 kits
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