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Old 26th September 2011, 04:27 PM   #151
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I would think it is just a matter of tying the sources of the input pair together. I would imagine the trick is in how you do that while maintaining the ability to play with harmonic distribution. Just guessing though, as I do not know how.
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Old 26th September 2011, 04:35 PM   #152
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A pair of SJ109s?
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Old 26th September 2011, 05:29 PM   #153
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A75 article may have some hints, still guessing. SJ109 is unneccessary. SJ74 pair and sk170 pair are the same thing(close) if matched.
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Old 26th September 2011, 06:06 PM   #154
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I believe I figured it out with the help of another thread link, but will experminent in the dark recesses of my home and wait for BA. Maybe by then, mine will literally be a BA.
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Old 26th September 2011, 06:36 PM   #155
flg is offline flg  United States
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I think some insight might be gained in the F5 - the EUVL approach?
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Old 26th September 2011, 09:54 PM   #156
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You'll just have to wait 120 hours....

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Old 27th September 2011, 12:33 AM   #157
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Am I correct in assuming that the balanced version would maintain the no feedback concept.
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Old 27th September 2011, 12:52 AM   #158
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Saddens me to know I'm headed to the "Right Coast" of the US for business, when all of you are going to the "Left Coast" for audiophile fun and adult beverages.....

If you get the urge for good Italian food, try Frascati - SF

If you have a craving for great Pan-Asian, try The House

Two of my favorites....! You'all have a great time at BA.....

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Old 27th September 2011, 01:31 AM   #159
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Default BA-3 Low gain

Hi Guy's

I did some more checking on the front end and I’m getting .5 of the input signal at the gates of the Q3 and Q4 from the input stage, I’m wondering if R5 should be a 50 ohm resistor? The math doesn't seem to work I get 2 or .5?

Thanks,

Last edited by Botte; 27th September 2011 at 01:37 AM.
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Old 27th September 2011, 10:28 AM   #160
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For anybody other than me that wants some idea of how a level shifter works.
http://www.trekinc.com/pdf/6001_Volt...l_Shifting.pdf
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