Henrik Carlsson's Blog

All things me.

Night owl

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Download and listen to Night owl

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Roland TR-707

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Today I got a Roland TR-707 ”Rhytm Composer” from my dad. (In exchange, he got my SE Electronics Reflexion Filter. Each of us think we made the better part of the deal.)

A quick phone snap of the Roland TR-707

A quick phone snap of the Roland TR-707

Unfortunately the first attempt at turning the device on failed. Dad did not have an external PSU for it, so I had to look through my own boxes of PSUs.

The 707 has a battery compartment that holds two AA batteries, but from what I’ve been able to gather from the user manual of the device as well as from the internet in general, these are only to power the machines memory when disconnected from a regular power source. It’s main power comes from the DC input that expects 12 V DC, center negative. I found an adapter among my spares that matched the specs but it didn’t connect properly. It seems like something i stuck inside the DC In jack.

When checking it out and while searching for information on the PSU (the center negative thing was not evident from the machine itself) I realized that my particular unit has an extra jack next to the power switch. The jack seems to be a 3.5 mm mono jack and from the labeling on a piece of tape on top of the machine, this is an alternative power jack.

To confirm this I decided to open up the 707. Doing so is very straight forward. Just turn it so the bottom faces up and unscrew seven philips screws. Once it poped open I could see wiring from the 3.5 mm jack to the circuit board connection of the regular power jack, so it seems like this indeed is an alternative power jack. Unfortunately, when I opened it I managed to sever the red wire that connects the battery pack to the circuit board, so I’ve busted the memory for now. I don’t have a soldering iron at home so I can’t fix it right now, but I don’t see how fixing it can be a problem.

(Left to right) 1. The regular DC in. 2. Power switch. 3. The tacked-on, alternate DC input.

(Left to right) 1. The regular DC in. 2. Power switch. 3. The tacked-on, alternate DC input.

I put the machine back together and started searching for a 12 V DC power supply with a 3.5 mm plug and realized that my guitar pedal PSU (the T-Rex Fuel Tank) actually have that feature. So I plugged it in and tried to power on the device, but sadly no luck.

At this time I’m not sure what the problem is and since I don’t have neither a soldering iron nor a multimeter available at home, I’ll have to put this off to another day. I’ll keep blogging about my way to make it functional again.

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The #LibertyDonut

http://ihnatko.com/2016/07/07/the-libertydonut/

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Apple open sources Swift Playground Support

http://ericasadun.com/2016/07/07/apple-open-sources-swift-playground-support/

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Nu har Linn och jag bara två avsnitt kvar på senaste säsongen av ”Orange is the new black” och jäklar vad spännande det är. Vi är väldigt investerade i karaktärerna och allt som händer nu.

Det är så fascinerande med här serien hur alla karaktärer visar sig kunna vara komplexa människor och hur den man nyss sett som satan själv helt plötsligt blir nån man sympatiserar med.

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? Manton Reece: Time to rethink blog comments

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  • Twitter’s 140-character limit and easy retweeting encourage and amplify negative tweets. Sincerity is less common. Everything is an opportunity for a joke.
  • Widely followed, long-time Twitter users don’t find the joy they used to when interacting with followers. Some have retreated to private Slack channels, at the cost of public discussion and approachability.
  • Developers have never completely forgiven Twitter for crippling the API. This doesn’t directly impact most users anymore, but it’s a backdrop that gives every new Twitter feature a tone of distrust. Progress is slow.

Meanwhile, blog comments have slowly been killed off over that same period. The rise of social networks, combined with the technical problems of fighting blog comment spam, pushed most bloggers to prefer answering questions on Twitter.

– Manton Reece, Time to rethink blog comments

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Husmålning

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(Also on Instagram.)

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Replies and comments

My alcoholic beverage of choice for tonight is a Tom Collins

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An iPhone without a headphone jack

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There are strong rumors flying around the internet saying that the next iPhone will lack a traditional 3.5 mm headphone jack. If that is the case I will be sad. If Apple does this and keeps it up in the future, my next phone will likely be an iPhone SE (that has a headphone jack) and thereafter I’ll switch away from Apple. I don’t want to do that and since so far this is only a rumor, I don’t need to worry about it today.

Among the articles I’ve read on the topic, I think Jason Snell’s ”Searching for a good reason to remove the headphone jack” on Six Colors is the best.

I’d like to add extra emphasize to the way a (so far hypothetical) removal of the 3.5 mm jack would impact the audio and music business in a bad way. In recording studios all over the world, there are people connecting their phones to big, expensive mixing consoles. We do this for instance to be able to listen to reference material when making a recording. Same is true in the live sound world. In PAs everywhere there are phones connected to the Front-of-House mixers being used to play music that the engineer needs to calibrate the PA properly. So far this has been pretty straight forward, since every phone, every tablet and every laptop that I know of has a 3.5 mm jack.

So regardless of what (brand of) device people might use in your studio/PA, you can count on the 3.5 mm tele plug to be the simplest solution.

If Apple removes the headphone jack we will have a more stressful work-environment, with more crap to keep track of and more adapters to loose.

So please, say it isn’t so.

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? Turbolinks makes navigating your web application faster

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Turbolinks seems to be a reasonable way to implement a more ”app like” feel to websites without falling into the trap of endless JavaScript dependencies and page bloat.

Turbolinks makes navigating your web application faster. Get the performance benefits of a single-page application without the added complexity of a client-side JavaScript framework. Use HTML to render your views on the server side and link to pages as usual. When you follow a link, Turbolinks automatically fetches the page, swaps in its , and merges its , all without incurring the cost of a full page load.

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