Looking for MN3004
- bajaman
- Old Solderhand
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Any one know where I might find some? - looking for two if possible
Cheers
bajaman
Cheers
bajaman
- invictus
- Breadboard Brother
same problem i had couple of weeks ago... wasnt able to find them either.. i just settled for MN3007...
"im the master of my fate, im the captain of my soul... " -invictus
- Dirk_Hendrik
- Old Solderhand
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Lat time I've seen a few on the Bay is about a year ago... (In Australia so they (have been) closer than you think)
- MoreCowbell
- Transistor Tuner
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I *may* have a couple around here. I'll check. If I do, you're welcome to them.
- bajaman
- Old Solderhand
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Hey thanks guys
I'm working on a rotary speaker stompbox idea, based on the circuit used in the OLD Korg CX3 organ - it uses two of these devices.
my plan is to build a clone of it first (I have the schematic), then redesign the delay sections with readily available digital chips (PT2399). If it is successful, I will probably include the use of the very smooooooth ( shameless plug ) pure sine wave oscillator I developed for the Baja Trembulator as well .
I will post on the forum here, once the project is completed - but do not hold your breath - it may be some time yet, but hopefully before Xmas
bajaman
I'm working on a rotary speaker stompbox idea, based on the circuit used in the OLD Korg CX3 organ - it uses two of these devices.
my plan is to build a clone of it first (I have the schematic), then redesign the delay sections with readily available digital chips (PT2399). If it is successful, I will probably include the use of the very smooooooth ( shameless plug ) pure sine wave oscillator I developed for the Baja Trembulator as well .
I will post on the forum here, once the project is completed - but do not hold your breath - it may be some time yet, but hopefully before Xmas
bajaman
- Dirk_Hendrik
- Old Solderhand
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yeayeah... swell guy... x-masss........ speed up will ye
But sereously;)
Wouldn't it be a much better idea to push towards 07 bbd's to make the design rebuildable? As I understand from this request even the "i pay you big NZ$$s won't be possible, let alone a "hey baja, thanks for the DIY project!"
juzzomethougts from approx 24 hours time difference Enjoy your day Baja! I'm off..dreamin about the close to southern North pole .... Or something WAY more exciting!
But sereously;)
Wouldn't it be a much better idea to push towards 07 bbd's to make the design rebuildable? As I understand from this request even the "i pay you big NZ$$s won't be possible, let alone a "hey baja, thanks for the DIY project!"
juzzomethougts from approx 24 hours time difference Enjoy your day Baja! I'm off..dreamin about the close to southern North pole .... Or something WAY more exciting!
- modman
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This doesn't look good for the chip, Baja, this guy should know
http://www.analoguehaven.com/doepfer/a188-1/
http://www.analoguehaven.com/doepfer/a188-1/
as little as I can help, sorryA-188-1X with 128 stages BBD (MN3006/MN3206, available only as long as quantities of MN3006/MN3206 last)
A-188-1Y with 256 stages BBD (MN3009/MN3209, available only as long as quantities of MN3009/MN3209 last)
A-188-1A with 512 stages BBD (MN3004/MN3204, available only as long as quantities of MN3004/MN3204 last)
Please, support freestompboxes.org on Patreon for just 1 pcb per year! Or donate directly through PayPal
- bajaman
- Old Solderhand
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No worries folks - I KNOW I can achieve very good results with the PT2399 digital chip
I just wanted to try the MN3004 devices to give me a point of reference TONE wise
Many thanks for all the help and advice
Cheers
bajaman
I just wanted to try the MN3004 devices to give me a point of reference TONE wise
Many thanks for all the help and advice
Cheers
bajaman
- bajaman
- Old Solderhand
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MN3004 = 512 stages for 2.5ms - 25ms delay
MN3007 = 1024 stages for 5ms - 50ms delay
Both = 85dB s/n ratio @ 0.4% thd
PT2399 = digital chip up to 400ms delay @0.4% thd
BUT at very low delay (30ms region) 0.13% thd and over 22Mhz clock frequency AND 90dB s/n ratio
AND - easily obtainable and cheap
bajaman
MN3007 = 1024 stages for 5ms - 50ms delay
Both = 85dB s/n ratio @ 0.4% thd
PT2399 = digital chip up to 400ms delay @0.4% thd
BUT at very low delay (30ms region) 0.13% thd and over 22Mhz clock frequency AND 90dB s/n ratio
AND - easily obtainable and cheap
bajaman
- invictus
- Breadboard Brother
yeah, PT2399 is a nice chip.. but do you also got the 'low-fi' hiss specially when set at largest delay time? i used the PT2399 in a delay pedal and im wondering ifs possible to eliminate that 'hiss' on the sound trail at max delay time.
.
.
"im the master of my fate, im the captain of my soul... " -invictus
- bajaman
- Old Solderhand
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Hi Invictus - NO - not easy at long delay times, but you could use two in series with a dual ganged pot controlling the delay of each (or an optocoupler design )
cheers
bajaman
cheers
bajaman
- MoreCowbell
- Transistor Tuner
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I checked through my stash. No go. Sorry.
- bajaman
- Old Solderhand
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Hi MoreCowbell
No worries - thanks for looking mate
cheers
bajaman
No worries - thanks for looking mate
cheers
bajaman
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Hi Bajaman,
Perhaps you can solve the problem with a TDA1022. Costs 3,50€ and has 512 stages
regards Uwe
Perhaps you can solve the problem with a TDA1022. Costs 3,50€ and has 512 stages
regards Uwe
- bajaman
- Old Solderhand
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Thanks Uwe
I will read up on them
bajaman
I will read up on them
bajaman
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bajaman wrote:Hi Invictus - NO - not easy at long delay times, but you could use two in series with a dual ganged pot controlling the delay of each (or an optocoupler design )
cheers
bajaman
Hi,
or takes a HT8955 with a DRAM 41256 up to 800ms.
regards Uwe
- modman
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Lots of MN BBDs at VERY CHEAP prices can be found here
https://search.stores.ebay.com/PARTSPIP ... 2aQQsofpZ0
20pcs MN3007 at $24 ($10.95/pcs at Smallbear)
https://search.stores.ebay.com/PARTSPIP ... 2aQQsofpZ0
20pcs MN3007 at $24 ($10.95/pcs at Smallbear)
Please, support freestompboxes.org on Patreon for just 1 pcb per year! Or donate directly through PayPal
- modman
- a d m i n
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- Posts: 4898
- Joined: 19 Jun 2007, 16:57
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Please, support freestompboxes.org on Patreon for just 1 pcb per year! Or donate directly through PayPal