Archive for the 'Defender' Category

Wood working help

Sunday, January 31st, 2010

Is there anyone in the UK that would be willing to work with me making a case for Defender? My previous efforts (below) at wooden cases sort of suck. What I really want is an angled front panel with the keys in the bottom, a bit like a minimoog with it’s panel angled, but not […]

Defender Panel Redesign

Saturday, January 30th, 2010

No, don’t panic, the panel layout is staying the same. What is changing is the backend for the panel, I had numerous problems with the first revision of the panel control board, mostly with it talking to the main CPU board and then the voice. So, I’ve shrunk things, the panel board now controls the […]

New years resolutions?

Friday, January 15th, 2010

Well, it’s a new year (for those who missed it, SURPRISE!!) and GorF is done, so what next? Well, I’m going to be focusing on two projects this year, and only two. in no particular order; Defender:- It seems a shame to have that lovely panel sitting there dead, and a voice card that works […]

Sometimes I wonder why

Saturday, November 1st, 2008

Sometimes I wonder why i do these mad things. I mean building synths. For example, I’ve just speant about 3 hours trying to figure out a problem with the panel. I’ve made some headway, but come up against a brick wall. Basically the Synth is split into three parts, a panel, a controller and a […]

Defender Panel Update

Friday, October 10th, 2008

Well, Things have been moving along with Defender’s panel. It’s now assembled, as shown below and I’ve begun coding the software to read it and send data to the voice. At the moment only the knobs are scanned and sending values. So you can vary the filter cutoff, resonance, envelope parameters, etc. Scanning the switches […]

All my tubes and wires!

Monday, September 29th, 2008

The build of the panel is moving along well. I have lots of wires soldered in place, lots of knobs and bucket loads of LEDs and switches. Everything is glue-gunned in place and it’s starting to come together well. Next up it’s soldering all the wires to the control board (top middle of the picture) […]

Defender Panel

Tuesday, September 9th, 2008

Well, I’ve managed to get the LED matrix working and the switch matrix working today. The switches and LEDs are scanned at 1Khz (actually there’s 24 columns scanned at 24khz). The LEDs are bright enough with a duty cycle of 1 in 24. The picture is of one of the front panel PCBs, the majority […]

Defender Panel and wierd LEDs

Sunday, September 7th, 2008

I’ve been busy working on the Panel for Defender whilst I have the time, and I managed to find the impossible today. I had a fault with the LED matrix that meant all the LEDs lit up dimly when they shouldn’t have.. Most odd, so I disconnected the ‘column’ pin which supplies the 5V to […]

Defender Panel (update)

Saturday, August 30th, 2008

How I miss soldering, not! Actually, it’s kind of theraputic. The panel for defender arrived earlier this week and I’ve mounted the potentiometers and begun soldering wires. Each pot now has it’s 0V and +5v supply rail, Next I’ll be mounting the LEDs and switches onto strip board and the panel. I’ve got some stand-off’s […]

Defender Panel

Sunday, August 17th, 2008

Well, I’ve been banging my head for ways of controlling the insane number of LEDs and switches on the Defender Panel. After a week of ideas and a lot of bits of paper being scribbled on and promptly screwed up and thrown I came up with a way forward. I had been considering using Charlieplexing, […]