Switchable Hi-Z input impedance, how ? - Page 21 - diyAudio
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Old 16th July 2012, 11:13 PM   #201
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by shanx View Post
Did you finalize your front panel controls? or still working out the details?

figured I would need more space for controls
changed the front today, and its crap

need to find some plain alu, and make a complete new control panel
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Old 17th July 2012, 04:00 PM   #202
shanx is offline shanx  Canada
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I would check around your area, see if any machine shops have some 2 mm alum plate lying around. They may be able to offer you at a good price.
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Old 17th July 2012, 05:56 PM   #203
tinitus is offline tinitus  Europe
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2mm will be ok
I might try with PVC in front of the 2mm alu
actually, that was was my original idea
this way I can write all 'functions' on my PC, and place them between the PVC and alu
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Old 18th July 2012, 10:34 PM   #204
tinitus is offline tinitus  Europe
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maybe this could be fun
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Old 21st July 2012, 08:58 PM   #205
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Quote:
Originally Posted by tinitus View Post
maybe this could be fun
Lookin' good.

Here's how I ended up doing mine, using the Broskie mono octal board with two 6SN7s, Welborne PS-8 power supply, and my own 6SL7 front end with active mids and bass (Baxandall) between the 6SL7 sections, with a passive treble circuit following the second 6SL7 section.

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Sound clips:

Electric upright, direct to sound card.

Fretless bass guitar, also straight to sound card.

Last edited by Passinwind; 21st July 2012 at 09:03 PM.
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Old 21st July 2012, 09:09 PM   #206
tinitus is offline tinitus  Europe
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Originally Posted by Passinwind View Post
Here's how I ended up doing mine.....
very nice

Im looking for control knobs
where did you find yours ?

only, with two channels I need twice as many
scares me a bit
big risk it will be messy

oh, btw, waiting for a new front plate, smoked poly
a friend said he would get it for me
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Old 21st July 2012, 09:26 PM   #207
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Quote:
Originally Posted by tinitus View Post
very nice

I'm looking for control knobs
where did you find yours ?
Thanks, I am pretty happy with how it came out. Those are Jensen transformers on the input and output. I will probably post the whole Spice simulation eventually as I am looking to refine my modeling capabilities and could use some experienced input. I mainly used Spice to get the tone controls in the ballpark of what I was looking for, and it worked very well for that.

Those are Alco/Tyco knobs, sold by many vendors worldwide. I got mine from Marvac for under $2 each, but Small Bear sells them for a bit more as well. Since you're in Europe I assume you will likely do better with someone more local though.
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Old 22nd July 2012, 08:22 AM   #208
tinitus is offline tinitus  Europe
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front layout could be something like this

not sure I want to bother with effects
I prefer a clean sound with only small variations
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Old 22nd July 2012, 08:58 AM   #209
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I prefer a clean sound with only small variations
funny thing that the sound needs to be 'correct', and match the music, or I cant play properly
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Old 23rd July 2012, 11:06 AM   #210
tinitus is offline tinitus  Europe
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closing in on the final front layout
looking complicated with output selector and multiple bypass switches
and all the diodes indicating signal or bypass (light off)

and I have no idea how
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