Search found 34 matches

by mex
Jan 31st, '17, 13:19
Forum: Nava Hardware
Topic: RA9A/B/C/D Resistors in Digital Voices
Replies: 6
Views: 4677

Re: RA9A/B/C/D Resistors in Digital Voices

if you refer to the potis to adjust the hihat? They have different purpose, one is standart for volumn, the other two are simply for timing purposes int he circuit, they convert the trigger pulse form the sequencer to hihat sounds output timings. On the other eprom circuits you do have tuning potis,...
by mex
Jan 31st, '17, 08:11
Forum: Nava Hardware
Topic: RA9A/B/C/D Resistors in Digital Voices
Replies: 6
Views: 4677

Re: RA9A/B/C/D Resistors in Digital Voices

They are more precise than normal 5% or 1% resistors, in those resistors the sound that will be generated depends on those resistors, i think they are suppose to represent octaves, like their value is doubles each time 5k to 12k to 20k 40k and so on. I didnt have 5k ones, so i did solder 10k in para...
by mex
Jan 27th, '17, 21:13
Forum: Nava Hardware
Topic: Continuity between +15v , -15 and gnd on main board
Replies: 4
Views: 3620

Re: Continuity between +15v , -15 and gnd on main board

nope dont think the bd uses 5V, i think 5V are almost only used for te digital circuitry, like sequenecer and eeprom samples for the ride etc... I guess you gotta go the hard way solder it all then hope it works, if it doesnt work use the forum and maybe some electric engineers nearby to tell you th...
by mex
Jan 27th, '17, 12:03
Forum: Yocto v1.0 Hardware
Topic: metal-film vs carbon resistors
Replies: 8
Views: 6795

Re: metal-film vs carbon resistors

Metal-film resistors are less noisy than carbon ones You got any source for that statement? I am of the opinion, noise in resistors is only happening due to therman noise, so called johnson noise. And its only dependend on the resistor value, so if you have high value you get bigger noise, no matte...
by mex
Jan 27th, '17, 11:41
Forum: Nava Hardware
Topic: Continuity between +15v , -15 and gnd on main board
Replies: 4
Views: 3620

Re: Continuity between +15v , -15 and gnd on main board

as long as your supply cvoltages are correct, +-15 or 14 V and 5V or something near it, you do not have to worry, of course it can happen that something is broken and you draw a lot of current and something gets hot in the long run, but i would not say this is happening in your case, since your volt...
by mex
Jan 5th, '17, 19:34
Forum: Yocto v1.0 Hardware
Topic: Yocto midi out what does it do
Replies: 6
Views: 9509

Yocto midi out what does it do

Hi, i just finished my yocto , works pretty fine, except my noise section got some issues i guess, my snares do not sound very snappy, but i guess that problem is too difficult to describe in here :) Anyway, what i am wondering right now, why is there an midi out built in? Can I use it, what signals...
by mex
Jan 4th, '17, 13:48
Forum: Yocto v1.0 Hardware
Topic: metal-film vs carbon resistors
Replies: 8
Views: 6795

Re: metal-film vs carbon resistors

as always in electronics, one is cheaper than the other, and you always try to be as cheap as possible while still beeing as accurate as possible, so for example the logic part with all the leds, dont require stable resistors you can choose cheap here, in other parts like the t networks for sound po...
by mex
Dec 19th, '16, 12:59
Forum: Yocto v1.0 Hardware
Topic: Yocto Metal Box EU - Group Buy
Replies: 319
Views: 551875

Re: Yocto Metal Box EU - Group Buy

20.12.2016 #uPDATE: kasper also wrote me back, just everyone knows, as i said doing this business aside simply takes some time, for me that is ok, as long as i get some news once in a while :D I ordered a case a while ago, then there was an update begin November your 4th batch had a problem with the...
by mex
Dec 2nd, '16, 07:30
Forum: Nava Hardware
Topic: Build log with photos & build guide addendum
Replies: 12
Views: 10518

Re: Build log with photos & build guide addendum

dont trust pictures trust schematics...
by mex
Nov 8th, '16, 08:05
Forum: Nava Hardware
Topic: midi transmit
Replies: 7
Views: 15251

Re: midi transmit

yeah, thanks I checked that i have installed firmware 1.018 so i will try to get a never version onto my nava and then try again. What I wanted to test is play the nava from an external keyboard via midi, and what i hoped to do is maybe play the exact patterns from the nava via midi out on my tr707 ...