Synth-DIY Yahoo! Groups Archives

Exchanging CEM3379 for CEM3320 on the A-122

2014-10-11 by John V. Talbert

Could use some input here. I have an A-122 with the CEM3379 that I purchased last year and was planning to exchange it for a CEM3320. Does anyone know if there are any special modifications that I need to make to the A-122 beforehand or should this be a simple swap?

Thanks

Kindest regards,

John

Re: Exchanging CEM3379 for CEM3320 on the A-122

2014-10-11 by andyr1960@ntlworld.com

Sorry to have to say this John, but they are certainly not swappable - Different configurations/pinouts. I suppose it COULD be done, but I’m afraid it’s way more trouble than it’s worth IMHO.

Andy

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Re: [Doepfer_a100] Re: Exchanging CEM3379 for CEM3320 on the A-122

2014-10-11 by achtung_999

Why waste the nice A122 sound? Unless the CEM3379 is broken of course?

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On Sat, Oct 11, 2014 at 10:06 AM, andyr1960@ntlworld.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:

Sorry to have to say this John, but they are certainly not swappable - Different configurations/pinouts. I suppose it COULD be done, but I’m afraid it’s way more trouble than it’s worth IMHO.

Andy

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https://www.flickr.com/photos/arp2600clone/

Re: [Doepfer_a100] Exchanging CEM3379 for CEM3320 on the A-122

2014-10-11 by Florian Anwander

Hello John,

The two versions of the A-122 are two completely different modules. The 3320 needs external electronics which are quite different from the 3379. For example: the resonance feedback path has to be done externally for the 3320, while it is internal in the 3379. Or : the four stages of the 3320 have to be wired externally, whil the 3379 has them connected internal.

So I have to say sorry: there is no difference in "build a diy 3320 module" or "modify a 3379 to suit a 3320".

Florian

On 11.10.14 08:43 , 'John V. Talbert' jvtalbert@gmail.com [Doepfer_a100] wrote:

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Could use some input here. I have an A-122 with the CEM3379 that I purchased last year and was planning to exchange it for a CEM3320. Does anyone know if there are any special modifications that I need to make to the A-122 beforehand or should this be a simple swap?

Re: [Doepfer_a100] Exchanging CEM3379 for CEM3320 on the A-122

2014-10-12 by John V. Talbert

Thanks for the insight Florian and Andy. I was just hoping that swapping in a CEM3320 would allow the A-122 to pair even more nicely with my A-123. Looks like it was all just wishful thinking! :)

John

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On Sat, Oct 11, 2014 at 4:37 PM, Florian Anwander fanwander@mnet-online.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:

Hello John,

The two versions of the A-122 are two completely different modules. The 3320 needs external electronics which are quite different from the 3379. For example: the resonance feedback path has to be done externally for the 3320, while it is internal in the 3379. Or : the four stages of the 3320 have to be wired externally, whil the 3379 has them connected internal.

So I have to say sorry: there is no difference in "build a diy 3320 module" or "modify a 3379 to suit a 3320".

Florian

On 11.10.14 08:43 , 'John V. Talbert' jvtalbert@gmail.com [Doepfer_a100] wrote:

Could use some input here. I have an A-122 with the CEM3379 that I purchased last year and was planning to exchange it for a CEM3320. Does anyone know if there are any special modifications that I need to make to the A-122 beforehand or should this be a simple swap?