Api Clone
« on: November 16, 2018, 05:48:59 PM »
Hi,
I am but a bear of little brain and am contemplating buying an Api Preamp copy which you can see pictured. Unfortunately the seller know little about it but thought someone here might recognise the circuit.
Best wishes
Rohan White


Walrus

Re: Api Clone
« Reply #1 on: November 17, 2018, 05:15:10 AM »
Without a schematic of the circuit it is impossible to say what it is based on. But I can't see any 2520 type opamps or API syle transformers, therefore it will sound nothing like an API pre.
Kevin.

mjrippe

Re: Api Clone
« Reply #2 on: November 17, 2018, 12:59:48 PM »
Looks like Belclere transformers and a 5532 opamp.  Nothing close to an API.

shot

Re: Api Clone
« Reply #3 on: November 17, 2018, 02:55:20 PM »
You say it could be Belclere... I never saw them so I cannot comment. Could be!
But I was under the impression when I first saw the pic that this is OEP with mumetal enclosure.

:)

Luka

mjrippe

Re: Api Clone
« Reply #4 on: November 17, 2018, 03:30:58 PM »
You say it could be Belclere... I never saw them so I cannot comment. Could be!
But I was under the impression when I first saw the pic that this is OEP with mumetal enclosure.

:)

Luka

Luka,

And I have never seen OEP, so I think you may be correct!  OEP seems more likely for a DIY project.

Mike

ruffrecords

Re: Api Clone
« Reply #5 on: November 17, 2018, 04:01:19 PM »
OEP transformers usually have a label covering most of the top of the transformer.

Cheers

Ian
www.customtubeconsoles.com
https://mark3vtm.blogspot.co.uk/
www.eztubemixer.blogspot.co.uk


'The only people not making mistakes are the people doing nothing'

shot

Re: Api Clone
« Reply #6 on: November 17, 2018, 06:52:09 PM »
OEP transformers usually have a label covering most of the top of the transformer.

Cheers

Ian

Yes if they are not covered with mumetal can. They are black plastic with white sticker on top.
Like this one for instance - https://uk.farnell.com/oep-oxford-electrical-products/a262a3e/transformer-1-1-6-45-6-45-150/dp/1172344
But if you buy the can separately, they usually don't come with any label on top.
I bought from diy-tubes and though they are marketed on the webshop pic with custom label, mine came with no label at all.
http://diy-tubes.com/index.php?route=product/product&path=25_72&product_id=285

I'm not saying it's OEP, but just that it looks to me very similar to OEP with mumetal can.
Could be Belclere... could be something else... who knows...

But what we know for sure - this board is not API clone.
It's apiish - transformer to opamp - style unknown preamp...

:)

Luka

ruffrecords

Re: Api Clone
« Reply #7 on: November 17, 2018, 07:21:10 PM »
Yes if they are not covered with mumetal can. They are black plastic with white sticker on top.
Like this one for instance - https://uk.farnell.com/oep-oxford-electrical-products/a262a3e/transformer-1-1-6-45-6-45-150/dp/1172344
But if you buy the can separately, they usually don't come with any label on top.
I bought from diy-tubes and though they are marketed on the webshop pic with custom label, mine came with no label at all.
http://diy-tubes.com/index.php?route=product/product&path=25_72&product_id=285

I'm not saying it's OEP, but just that it looks to me very similar to OEP with mumetal can.
Could be Belclere... could be something else... who knows...

But what we know for sure - this board is not API clone.
It's apiish - transformer to opamp - style unknown preamp...

:)

Luka

Sorry, I did not explain properly. OEP supply versions already in a mu metal can. These also have a big label on top. All their transformers with a 'C' suffix are like this.

Cheers

Ian
www.customtubeconsoles.com
https://mark3vtm.blogspot.co.uk/
www.eztubemixer.blogspot.co.uk


'The only people not making mistakes are the people doing nothing'

Re: Api Clone
« Reply #8 on: November 18, 2018, 07:00:33 AM »
Thanks for your opinions... As Its too far to travel its impossible to try the thing out so I guess I'll save up for something more conventional and expensive! This was a 4 channel unit for £500 so we'll priced if it's actually any good. What I'm really looking for is something which will be good for recording straight to tape without noise reduction.

 

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