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Old 21st November 2019, 10:07 AM   #21
Zen Mod is online now Zen Mod  Serbia
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tnx to AnthonyA , datasheet , here : Tokin 2SK77B datasheet | Zen Mod Blog
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Old 21st November 2019, 11:07 PM   #22
flocchini is offline flocchini  United States
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Quote:
Originally Posted by Ben Mah View Post
No typo as far as I know. The cap to the left of the 4N37 is labeled 1K (1000uF) and the cap at the speaker output is labeled 10K (10,000uF).

I have built this circuit with those values and it works and it sounds great. Not with 2SK77B of course, but with THF-51S.
Great meeting you at BA2019

Did you use the ixfn140n20p in your build?

Thanks

Bob
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Old 22nd November 2019, 12:11 AM   #23
Ben Mah is offline Ben Mah  Canada
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Hi Bob,

It was great meeting you too. It was my first BAF and I had a great time.

I did use the IXFN140N20P for the CCS.

You mentioned that your were working on this amplifier too. Is it nearly finished?

Ben
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Old 22nd November 2019, 12:35 AM   #24
flocchini is offline flocchini  United States
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Hope to see you at many more.

I have one channel working - hopefully during the next week or so I will get the other going.

Thank you
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Old 22nd November 2019, 01:14 AM   #25
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K, m, dilemma , whatever

use fine , fast , settable B-

5V is enough , negative

even 7905 will work (put some shunt load on output , say 15mA will do the job so 330R regular resistor will do) , though LM431 or LM336Z-5 are better for better sleep , if nothing else
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Old 22nd November 2019, 01:33 AM   #26
Dennis Hui is offline Dennis Hui  Canada
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Hey Bob and Ben,

Seeing both of you building this amp using the Tokin Vfet is quite
an inspiration. I hope to give it a try later.

Cheers,
Dennis
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Old 22nd November 2019, 01:40 AM   #27
flocchini is offline flocchini  United States
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Inspired by the sound of SissySit !!!
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Old 22nd November 2019, 01:42 AM   #28
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oh yeah , that one is sissy sounding one

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Old 22nd November 2019, 01:50 AM   #29
flocchini is offline flocchini  United States
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At some point I will have to build an amp that doesn't use unobtanium
Only have 4 THF-51S spares
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Old 22nd November 2019, 01:59 AM   #30
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plenty for a lifetime worth of amps

further projects , yup, why no toobz?
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