More new stuff from Alfa RZPP

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nvining
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More new stuff from Alfa RZPP

Post by nvining » Thu Dec 13, 2018 11:33 am

Seen today while looking to see if their CA3280 clone is out yet:

http://www.alfarzpp.lv/eng/sc/application.php

No data sheets up yet, but looks like they're cloning the CEM3372 and CEM3394. I'm into this.

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dksynth
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Post by dksynth » Thu Dec 13, 2018 12:02 pm

the gang's back together

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kassu
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Post by kassu » Thu Dec 13, 2018 2:41 pm

The CA3280 clone is also out, listed under operational amplifiers:
http://www.alfarzpp.lv/eng/sc/operacionniki.php
Synth DIY blog and circuits: http://kassu2000.blogspot.fi/

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Jaytee
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Post by Jaytee » Thu Dec 13, 2018 5:15 pm

The 3394 is a pretty rad little chip. Hope to see some DIY polysynths cone out of this.

nvining
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Post by nvining » Wed Apr 03, 2019 3:19 pm

AS3394E samples are now out. Some interesting and odd new parts have data sheets too:

* AS2164 (seems like their version of the V2164)
* AS3364 (a *linear* version of the V2164!)
* AS3363 (a three channel VCA which is being sold with/as a "voltage polarizer")

What a fascinating collection of odd parts. A great time to be alive.

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notmiserlouagain
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Post by notmiserlouagain » Wed Apr 03, 2019 3:58 pm

AS3364 looks like a gamechanger to me, especially if it is a quad package...
:yay:
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ishi
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Post by ishi » Wed Apr 03, 2019 4:44 pm

Other than via Erica, where can these components be bought?

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cygmu
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Post by cygmu » Thu Apr 04, 2019 12:47 am

ishi wrote:Other than via Erica, where can these components be bought?
Electric Druid stocks some of them, e.g.
https://electricdruid.net/product-category/vcfs-vcas/

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BugBrand
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Post by BugBrand » Thu Apr 04, 2019 1:25 am

Yes, the AS3363 looks quite interesting!

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SphericalSound
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Post by SphericalSound » Fri Apr 05, 2019 2:18 pm

Analog synthland just get better and better :yay:

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Post by neil.johnson » Mon Apr 08, 2019 6:41 am

nvining wrote:* AS3364 (a *linear* version of the V2164!)
The AS3364 looks like a clone of the old SSM2024, although the currently quoted specs for the AS3364 are not that great.
nvining wrote:What a fascinating collection of odd parts. A great time to be alive.
Agreed :tu:

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infinitemachinery
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Post by infinitemachinery » Tue Apr 09, 2019 8:39 am

I asked Alfa about the AS3363 and AS3364 and they are waiting for samples for evaluation. They estimated 4 to 8 weeks.

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kassu
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Post by kassu » Thu Apr 11, 2019 1:58 am

neil.johnson wrote:
nvining wrote:* AS3364 (a *linear* version of the V2164!)
The AS3364 looks like a clone of the old SSM2024, although the currently quoted specs for the AS3364 are not that great.
nvining wrote:What a fascinating collection of odd parts. A great time to be alive.
Agreed :tu:

Neil
I just had a look at the datasheets a bit, and the AS3364 is clearly a quad version of the CEM/AS3360 with the log converters permanently connected. Like the 3360 it has much higher distortion than the SSM parts, but still plenty good for synth VCAs!

Similarly the AS3363 seems to borrow from the Curtis designs.

Very cool indeed that they are starting to make their own variants and configurations!
Synth DIY blog and circuits: http://kassu2000.blogspot.fi/

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Dave Kendall
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Post by Dave Kendall » Sat Apr 13, 2019 12:38 pm

Looks like yet another one is planned. :)

AS3350
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infinitemachinery
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Post by infinitemachinery » Sat Apr 13, 2019 12:56 pm

Dave Kendall wrote:Looks like yet another one is planned. :)

AS3350
Looks nice. Although that one may be a ways out.

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latigid on
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Post by latigid on » Sun Apr 14, 2019 12:39 am

infinitemachinery wrote:
Dave Kendall wrote:Looks like yet another one is planned. :)

AS3350
Looks nice. Although that one may be a ways out.
This one I asked for. It's the filter for the Rhodes Chroma dual voice boards, so with the 3360 and LM3086 you can pretty much make replacements.

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filterstein
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Post by filterstein » Sun Apr 14, 2019 10:20 am

And the cem 3350 is the last thing needed to clone the Synton Syrinx and the Crumar Spirit :party:

The syrinx is basically 2x 3340, 2x 3350, 2x 3310, 1x 3360 and a CA3080.

One 3350 is configured as the 2 Syrinx peak filters and one as a LPF.
Having owned the Syrinx i liked the peak filters better than the lowpass filter. For me the 3320 prophet style vcf sounds better.
Another option would be to build it more like in the datasheet and have the vcf hpf and bpf output available as outputs to combine with the peak filters.

The digisound 80-16 dual resonant filter is similar to the peak filters, most of the other digisound modules have already been cloned by a member here.

2 kassutronic vco's, a pharmasonic digisound dual adsr, digisound vca, digisound 3320 vcf and a future 80-16 clone would not make it an exact replica, but would give similar sonic possibilities.
And in my opinion together they'd be a better filter than the original.

nvining
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Post by nvining » Tue Apr 16, 2019 11:19 am

Nice. I was hoping they'd do the 3350; I have a million Chroma voice boards around the house so I'm super excited. I should spin up a DIY board project; the Chroma voice board is very simple and extremely well-documented.

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Post by cabintech » Mon Sep 16, 2019 4:05 pm

infinitemachinery wrote: Looks nice. Although that one may be a ways out.
Not so far out now... we have pre-production AS3350 sample chips and we are testing a new CEfx board design now.

Image

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Post by devinw1 » Mon Sep 16, 2019 4:43 pm

Guess I'll have to start working on that Six-Trak clone now that the AS3394 is out haha. :despair:

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tobb
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Post by tobb » Mon Sep 16, 2019 6:14 pm

devinw1 wrote:Guess I'll have to start working on that Six-Trak clone now that the AS3394 is out haha. :despair:
Yes but make it 3 vco's and desktop :)

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Post by devinw1 » Tue Sep 17, 2019 10:16 am

tobb wrote:
devinw1 wrote:Guess I'll have to start working on that Six-Trak clone now that the AS3394 is out haha. :despair:
Yes but make it 3 vco's and desktop :)
Wouldn't that be a 3-trak then? :lol:

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Post by alfa » Sun Oct 27, 2019 4:09 am

For All

Just to inform - AS3364D (SOIC16) in production.

http://www.alfarzpp.lv/eng/sc/AS3364.php

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