Every easel needs a rechargeable battery

Discussing some incredible modules that don't quite fit into the other forum categories.

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pelican
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Every easel needs a rechargeable battery

Post by pelican » Mon Jul 01, 2019 6:13 am

Come on Buchla, there's a ton of room in there to make the easel truly portable
WTB: Yamaha dx-11 manual

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papz
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Post by papz » Mon Jul 01, 2019 6:58 am

"Every Easel needs a Synthi" is relevant in the case of the VCS3 Card manufactured under EMS license because it's a direct reference to the old EMS ads.
Copying this formula for other purpose doesn't make sense.

Image

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Finest EMS gear service and Music Easel/208 goodies

I'm not a synths dealer and I'm not aware of an inexpensive Synthi secret market, please don't ask me if I know one for sale.
I don't offer support of any kind to people attempting to build clones of EMS equipment.

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01235813
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Post by 01235813 » Sat Aug 03, 2019 5:29 am

That is one attractive nun. :love:

Formalities aside, I would love to take the easel for a spin in the woods and whatnot.

I have looked up 12v power banks and things of the sort at the usual go-to sites. I found a series of car battery starters and other options varying in stats and price. My gut tells me those aren't going to work. Then again there is the aspect of the original easel being powered by batteries on the get go.

For those of us whom have no idea what to look for, is there someone out there willing to explain what the main criteria for such a unit would be? Are there any general caveats or things to watch for?

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wsy
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Post by wsy » Sat Aug 03, 2019 7:20 am

01235813 wrote:That is one attractive nun. :love:

Formalities aside, I would love to take the easel for a spin in the woods and whatnot.

I have looked up 12v power banks and things of the sort at the usual go-to sites. I found a series of car battery starters and other options varying in stats and price. My gut tells me those aren't going to work. Then again there is the aspect of the original easel being powered by batteries on the get go.

For those of us whom have no idea what to look for, is there someone out there willing to explain what the main criteria for such a unit would be? Are there any general caveats or things to watch for?
I've tried this, and the problem is that the Easel needs it's 12 volts and 11.9999 (or something like it) is not going to work; mine (at least) goes into unstable howling at
just around 12 volts so even a big battery only works for 20 minutes or so.

Yes, I know, annoying. Especially since I have a Crate Limo 50 watt lead acid amp
to do output.

- Bill
"Life is short. But we can always buy longer patch cords" - Savage

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ArguZ
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Post by ArguZ » Sat Aug 03, 2019 8:49 am

I am powering my mobile rig with this :

The benefit is that it comes in right under the legal limit of 150Wh , is small , lightweight and charges two USB devices or powers new effects pedals in on go.

MicroBattery MBX-PB001 Universal Power Bank
https://www.ebay.co.uk/itm/312696303616

in theory there is space for four of them in the lid ;)

christie
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Post by christie » Sat Aug 03, 2019 11:28 pm

Any of the lithium ion or LiPo "power pack" with multiple voltage out settings batteries work great. I've used them with Easel, euro, serge 4U (via a power supply) and Buchla 200e. You want one that can supply more than your target voltage and regulates down to the target. For example, for the Easel, one that CAN supply 18v but has a 12v setting.

Here's an absurdly powerful one, just within the US flying limits:

POWERADD Pilot Pro 32000mAh Power...

Here's a pic from an impromptu kitchen counter test of the 200e bus midi from an iPad sequencer. Everything was powered from the battery behind the Skylab circled in green:

Image

ddp
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Post by ddp » Mon Aug 05, 2019 12:26 am

Awesome, good to know, I ordered one for my Skylab and Easel.
Buchla

christie
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Post by christie » Mon Aug 05, 2019 12:52 am

Just be super sure to set the correct output voltage (12v for Buchla) and use the right adapter tip. As shown in the pic, I use an older model (discontinued) rated at 24000mAh.

ddp
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Post by ddp » Wed Aug 07, 2019 10:57 pm

Copy, checked out on low voltage, but my Flukes have fuses.
Buchla

ddp
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Post by ddp » Wed Aug 07, 2019 11:00 pm

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Buchla

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Ginko
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Post by Ginko » Thu Aug 08, 2019 12:59 pm

Sweet! And the 218 behaves as expected? I wouldn't be surprised if it did, I took my Easel to the Uni I work at a few weeks ago and the 218 worked fine - almost everything else that uses capacitive touch goes haywire on the uni electrics!

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ArguZ
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Post by ArguZ » Thu Aug 08, 2019 1:18 pm

repeat after me... anti - static - wrist - band :)

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Ginko
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Post by Ginko » Thu Aug 08, 2019 1:49 pm

ArguZ wrote:repeat after me... anti - static - wrist - band :)
Ah heck yes! I have a pile of these that banana terminate!

christie
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Post by christie » Thu Aug 08, 2019 2:03 pm

I find the 218 MORE reliable on battery power. I have a lot of dimmer switches in the house - only a few clean AC circuits outside of the music room.

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ersatzplanet
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Post by ersatzplanet » Thu Aug 08, 2019 4:14 pm

Battery packs for Video lighting and cameras can come in high AmpHours ratings, in the 14-30 range easily. That is 14 to 30 hours at 1 amp.

Here is another way too - 440wH with a AC plug on it.

[video][/video]
-James

James Husted - Synthwerks, LLC - www.synthwerks.com - info@synthwerks.com - james@synthwerks.com
Synthwerks is a proud member of the Mostly Modular Trade Association (http://www.mostlymodular.com).
Always looking to trade for Doepfer P6 cases

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