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Old 15th June 2008, 10:14 PM   #1
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Default B1 Buffer Preamp

I was looking around for quite some time trying to find a simple buffer to drive my high gain power amplifier and now I am really interested about this B1 project, so Mr. Pass are there any news about it?


Will it contain also volume control and selector as complete preamp unit?
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Old 16th June 2008, 12:45 AM   #2
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There is a full DIY article scheduled to appear on EnjoytheMusic.com
at the beginning of July.

Also, you will shortly be able to buy one.

It looks like this from the outside:
Attached Images
File Type: jpg fp2 sm.jpg (38.3 KB, 37143 views)
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Old 16th June 2008, 12:46 AM   #3
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and like this on the inside:
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File Type: jpg inside 1 sm.jpg (99.5 KB, 38267 views)
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Old 16th June 2008, 12:56 AM   #4
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fugly!

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Old 16th June 2008, 12:57 AM   #5
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Quote:
Originally posted by Nelson Pass
and like this on the inside:
Would those happen to be PEC carbon pots?

se
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Old 16th June 2008, 01:10 AM   #6
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besides fuglyness ..... interesting ...... input cap , output cap , comp. jfet buff as in Papa's Lightspeed , single voltage supply ?

less is more
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Old 16th June 2008, 04:28 AM   #7
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I didn't see a source selector knob at the front panel.
Am I missing something ?


Patrick
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Old 16th June 2008, 04:52 AM   #8
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Quote:
Originally posted by EUVL
I didn't see a source selector knob at the front panel.
Am I missing something ?


Patrick

toggle switch

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Old 16th June 2008, 06:16 AM   #9
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It looks having two inputs:

(1) Passive pre with no buffer
(2) Passive pre with the buffer

and one output to the power...
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Old 16th June 2008, 11:14 AM   #10
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Quote:
Originally posted by Zen Mod
besides fuglyness ..... interesting ...... input cap , output cap , comp. jfet buff as in Papa's Lightspeed , single voltage supply ?

less is more

To me it looks like there 's no input cap, just an output one. Those small blue square things look like local decoupling PSU caps?

Maybe my eyes are deceiving me...
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Old 16th June 2008, 12:12 PM   #11
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Quote:
Originally posted by Vix



To me it looks like there 's no input cap, just an output one. Those small blue square things look like local decoupling PSU caps?

Maybe my eyes are deceiving me...

ya remember that all roads goes/leads to Rome ......... or - that's milion and one way to skin the cat

so - there is just no need to guess exactexactexact topology ......

besides that - you know that Papa must make it foolproof , because he sells them ......
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Old 16th June 2008, 12:16 PM   #12
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Gee-Zus Bruce almighty,

you can see a clear as crystal trace running from the big foil cap to the output hotline.

(and to think that some glare types have the nerve to call moi a blind mole bug-ger)
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Old 16th June 2008, 02:02 PM   #13
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Thank you Mr. Pass. Photo explain it all


Could the 10 uF output caps be replaced if the power amplifier has input cap?
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Old 16th June 2008, 02:06 PM   #14
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Quote:
Originally posted by supernet
.........
Could the 10 uF output caps be replaced if the power amplifier has input cap?

yup
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Old 16th June 2008, 02:06 PM   #15
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Looks far too complicated and messy for my liking

Are all those components really necessary?

on a more serious note - the pcb looks like it was milled because of all those straight lines. Is this a prototype board?
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Old 16th June 2008, 02:52 PM   #16
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Very cool.


P.S. I really dig the First Watt font. It's very Led Zeppelin / Rune-ish.
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Old 16th June 2008, 02:57 PM   #17
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I just love this forum and the participants here.

Within an hour or two members started reverse engineering the B1 from Nelson's acute angled picture. The forum will have self-documented the DIY article before Nelson publishes it.

Prediction:

Choky will have a complete circuit and boards with customized improvements made shortly called the BBF (Best B1 First), or ABC Pre for "Another B1 from Choky" or something!

People here are simply great! Cannot wait for the upcoming BurningAmp in October again.

-David
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Old 16th June 2008, 04:28 PM   #18
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Quote:
Originally posted by dw8083
I just love this forum and the participants here.

Within an hour or two members started reverse engineering the B1 from Nelson's acute angled picture. The forum will have self-documented the DIY article before Nelson publishes it.

Prediction:

Choky will have a complete circuit and boards with customized improvements made shortly called the BBF (Best B1 First), or ABC Pre for "Another B1 from Choky" or something!

People here are simply great! Cannot wait for the upcoming BurningAmp in October again.

-David

naah .......

I just dropped entirely messing with electronic .... Papa already made everything I can even imagine .........

waidaminid............. I still have my toobz ..........

seriously - Papa already sez lately everything needed to make nice and not complicated buff stage

my comments here were/are just my another expression of wackoo
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Old 16th June 2008, 04:32 PM   #19
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Sorry for off topic.... Choky, are you coming to Burning Amp this year? I hope so! You were missed last year.

-David
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Old 16th June 2008, 04:46 PM   #20
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Quote:
Originally posted by dw8083
Sorry for off topic.... Choky, are you coming to Burning Amp this year? I hope so! You were missed last year.

-David
tnx for nice words , but I think that I'll be missed this year too , except in case that I find some unexpected funds .....

anyway - do not worry - I'll do everything I can on two fronts :

1 . I'll hate ya all in these days (same as first time )
2.I'll do everything I can to rise my overall financial situation in next period , so my presence on BAF No.3 should enormously rise overall importance of Festival .....



(ps . if nothing else - I'll try to send Brunhilde to AR2 , for presentation )
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Old 16th June 2008, 04:55 PM   #21
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Hi Choky, sent you a PM. -David
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Old 16th June 2008, 04:58 PM   #22
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We were thinking of shipping a body bag over to BA.
You guys are required to check the temperature and USPS the thing back to Serbia before he starts to melt.


(I was informed, off the record, that ZM will be releasing the Stinky, the companion of the already introduced Shiny. After that, the BarF-What is scheduled.)
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Old 16th June 2008, 05:10 PM   #23
Zen Mod is offline Zen Mod  Serbia
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Default wackoo place - this Pass board

ya ppl nutz - seems that OT virus is spreading

anyway -
@Jaccovitty - I feel jeopardy ......... slight possibility that some terrorists can grab bodybag , and force me for good to keep my finger in dutchie tide fence ........

( I heard some sayings that in dutchland is harder and harder to find adequate wackoos for that job )
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Old 16th June 2008, 05:22 PM   #24
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I suppose the B1 case is a new standard issue series, the Key Largo for all the B-number offspring ?

(we're all becoming too fat for hard hole labor overhere, but you'd still be a tight fit dike plug)
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Old 16th June 2008, 05:31 PM   #25
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Quote:
Originally posted by dw8083
I just love this forum and the participants here.

Within an hour or two members started reverse engineering the B1 from Nelson's acute angled picture. The forum will have self-documented the DIY article before Nelson publishes it.

Prediction:

Choky will have a complete circuit and boards with customized improvements made shortly called the BBF (Best B1 First), or ABC Pre for "Another B1 from Choky" or something!

People here are simply great! Cannot wait for the upcoming BurningAmp in October again.

-David

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