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Old 10th July 2012, 04:18 AM   #81
kevinkr is offline kevinkr  United States
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Quote:
Originally Posted by tommy1000 View Post
teifbassuebertr, I think this is the one.
The table does not list the load impedance realized by any of these CCS circuits, and most of them will not be good. A proper ring of two (not J) and K would be the best of the lot, with type K being in common use here in the tube forum. Search on CCS here.
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Old 10th July 2012, 04:37 AM   #82
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Originally Posted by kevinkr View Post
The table does not list the load impedance realized by any of these CCS circuits, and most of them will not be good. A proper ring of two (not J) and K would be the best of the lot, with type K being in common use here in the tube forum. Search on CCS here.
YES!
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Old 10th July 2012, 12:44 PM   #83
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I can not find a reference to K or J type CCS. Can anyone explain?
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Old 10th July 2012, 02:19 PM   #84
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Originally Posted by tommy1000 View Post
I can not find a reference to K or J type CCS. Can anyone explain?
you find it??
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File Type: gif k-j.gif (9.0 KB, 521 views)
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Old 10th July 2012, 02:22 PM   #85
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The pcb test for VAS, it it ok, I can measure
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Old 10th July 2012, 03:42 PM   #86
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Originally Posted by quanghao View Post
you find it??
Yes, I see it now, thank you
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Old 11th July 2012, 02:37 AM   #87
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Originally Posted by Jay View Post
I think balanced operation ensures linearity. So #B or #C, whichever that works.

I'm struggling to find out what will make an amp with good bass performance. From practice, amps with #C have good bass, so may be there is something in it. I'm not there yet.
Hi Jay!

this CCS it is simple, and good!

you can test it, and advance to me!

thanks
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Old 11th July 2012, 05:39 AM   #88
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Hi Jay!
this CCS it is simple, and good!
you can test it, and advance to me!
In your new ccs (where led is not connected between base and Vee), led effect is minimal. I don't know how you connect the led, but proper connection (led symbol pointing upward) performs better.

The performance of the new ccs is in general slightly better than the previous led-based ccs. Very slightly that I don't think it matters (listening test should be conducted but I don't think the difference will be audible). The most noticeable effect, tho very slightly, is that the new ccs has lower noise in all frequency. I think it is understandable from looking at the number of the led used and its position related to Vee.
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Old 15th July 2012, 02:24 AM   #89
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[QUOTE=Jay;3088256
you like this CCS??
How about V BE you say??
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Old 19th July 2012, 03:02 AM   #90
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I had just finished PCB testing, the results are very pleased
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