Recent content by lcipher3

thanks - saw SmallBear but their out of the short barrel ones Mouser / Digikey etc may be it. Was trying to avoid their shipping but...

I want to make some custom power cable (9V) lengths. The only thing I can find are the super cheapo junk ones. Anyone have good source for the plug types like this? They shouldn't cost $3-8 for a connector. THESE NOT these

Ok - I found a great deal on a CIOKS SOL and bought one to try out. These are the measurements for volts vs load (mA). Tracks with the BOSS, nice and steady around 9.2 volts or so over at least 600mA - didnt have a load setup for 660mA. 900mA it drops to 8.5V but thats outside its range...

Thought I'd posts this pics of the TAYDA momentary closed (NO) switch insides. Pretty simple. After carefully drilling out the pins this is the guts. You could turn it into a magnetic switch pretty easy. The holes are about 0.100" (2-56 screw size) and the black plastic housing you could use...

I have a Fender Deluxe Reverb and Tweed 5E3 that I never use anymore. Just too loud with people in the house. My Boss Core GT1000 is super "touch" responsive and I can dial in what I want and experiment - using either headphones (which I kinda hate) or FR monitors at super low volume. But its...

As another piece of info - why doesn't anyone post Volts vs mA load for supplies? This is a collection I've taken on misc supplies. Kinda interesting. The other piece of info of course would be the voltage vs time showing any spikes. For instance the digitech looks ok for regulation but has...

Nice -looks like a cool setup. I've gone pretty much all guitar but I still have an SY77 sitting 2feet from me. Needs a backlight update.

I'm guessing the Eurorack stuff is pretty picky - probably not high current? I've done linear supplier forever but a) they're big b) have to be sized carefully for the application or you waste a ton of power into heat, etc. Sort of why I've been experimenting with SMPS. A lot of garbage out...

how do you like your DC7? Expensive -but worth it? ... I have a lot of 200 series Boss pedals a GT1000core and hate all the separate power power supplies.

Which Cioks do you have? DC7? Would REALLY REALLY be interested in what that looks like. Thinking about getting one.

Exactly - and don't forget that whatever (transformer, etc) is feeding the 14V has to be able to deliver the power. The transformer has to be rated for the power you will be using, and may be as high as 20v when not working hard. Which will then drop to xxx volts the harder it has to work to...

Don't have one. Have an old Vitoos DC8 supposed clone. Powered by a 12V 2A SMPS (with spikes) that it feeds two 1000mA (isolated from each other) which both use a LM2956 to get the 9V. Then there are 5x300mA non isolated (regulated). The 1000mA ports are "clean" the 300mA pass the noise...

That's what a lot of the app notes imply. You can do LC but then you potentially have a tuned oscillator dependent on loads. But like my last post shows - they can be made pretty smooth. Or not. Depends on what was asked for by the PS designer I guess. Linear are much more straight forward...

Seems like there are "good" supplies - I imagine a lot of the pedal board power supplies as switching. This is a DVE power supply 12V into an LM2596 to get 9V - actually better than the $40 BOSS supply. *typo on the first plot should be DVE and 9V regulation (actually set to 9.3)

Wont work on these high freq spikes (I tried). There are articles that discuss SMPS but its not easy. I dont know what BOSS and DVE are doing but they're a lot better. The spikes get past a linear regulator too if I put a LM7809 after a 12V SMPS with spikes. If you use a RC *filter* that might...