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Old 31st May 2012, 03:44 PM   #3541
AndrewT is offline AndrewT  Scotland
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Around the corner, or across one of the ponds?
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Old 31st May 2012, 04:33 PM   #3542
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im in toledo ohio
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Old 27th June 2012, 06:25 PM   #3543
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hi all, i have buit a B1 buffer P2P with ZM mod ( balanced supply and no signal Cap) i understand the 4x 240 ohm for the input and output oscillation but what is for the 1M output to ground ? can i leave them too ?
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Old 27th June 2012, 07:38 PM   #3544
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which schm exactly ?
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Old 27th June 2012, 07:50 PM   #3545
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hi ZM it is yours and it works fine !! ( PASS B1 ZM mod) but with 2 regulator and without output cap has my sit have one at the input. so my question is as i have no caps do i keep the 1M output resistor ?
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Old 27th June 2012, 07:58 PM   #3546
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keep it , just in case

buffer output doesn't care for it , but it's handy in case that succeeding stage (whatever it is ) have some residual DC
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Old 27th June 2012, 08:01 PM   #3547
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thanks ZM and thanks mr PASS the silence of this preamp is just incredible with just a 15000uf C filter and a pair of 15V regulator .. brillant as usual !
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Old 27th June 2012, 08:03 PM   #3548
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as always , I'm here to serve

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(even if I must confess - B1 is so boring that I'm raaaaaarely reading da thread)

(me likee more SLCF type things - funnier to make)

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Old 27th June 2012, 08:11 PM   #3549
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sorry to hear that, for me building this in one afternoon is as exciting as my first date with the baker daughter
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Old 27th June 2012, 08:18 PM   #3550
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I confess - it was same for me first time when I made it ........

(even if I didn't had date with exactly her )

........ yrs ago - trying buffers of JLH , Curl , Borbely etc.

in any case , revelation was when I tried Allen Wright's SLCF - most vivid thingie I tried

vividness is following that approach with whatever you make it - sand or glass or mixed
anyway - what differentiate B1 from SL Follower is just one (bjt) cascode on top of upper Jfet...... and better CCS down
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Last edited by Zen Mod; 27th June 2012 at 08:21 PM.
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