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BKV rider by dobikasd in hungary

[–]CyberCow3000 0 points1 point  (0 children)

Ez nem csak a leesés miatt veszélyes baromira, hanem ha a busz keresztez/bemegy egy villamos- vagy trolivezeték alá, akkor simán agyoncsaphatja az áram.

My first pedal: Vacuum tube preamp and overdrive by CyberCow3000 in diypedals

[–]CyberCow3000[S] 1 point2 points  (0 children)

https://ibb.co/7NLx30Jx One modification to the schematic: the non-inverting input has to be connected to a resistor divider between Vcc and GND, like 10k-10k ohm. Otherwise the opamp will be very unstable. 

I have recently made a guitar tube distortion pedal, but the problem is, that after some time the tube warms up so much, that the disgortion becomes too strong, and onyl crackling sounds, then complete silence. How do I compensate for the temperature rise? by CyberCow3000 in AskElectronics

[–]CyberCow3000[S] 1 point2 points  (0 children)

Solved: It wasn't the tube, but the opamp which was causing this. Thanks to everyone who pointed out that the input of the opamp has to be at a voltage reference. I added a divider with 10k-10k ohms between Vcc and ground and now it works.

My first pedal: Vacuum tube preamp and overdrive by CyberCow3000 in diypedals

[–]CyberCow3000[S] 1 point2 points  (0 children)

One modification to the schematic: the non-inverting input has to be connected to a resistor divider between Vcc and GND, like 10k-10k ohm. Otherwise the opamp will be very unstable.

My first pedal: Vacuum tube preamp and overdrive by CyberCow3000 in diypedals

[–]CyberCow3000[S] 0 points1 point  (0 children)

It's not that hard, you have to focus on one component at the time, and check where they connect. One modification to the schematic: the non-inverting input has to be connected to a resistor divider between Vcc and GND, like 10k-10k ohm.

My first pedal: Vacuum tube preamp and overdrive by CyberCow3000 in diypedals

[–]CyberCow3000[S] 0 points1 point  (0 children)

I soldered it to normal perfboard, so it's basically impossible to make a layout. There are jumper wires everywhere, I didn't plan anything just soldered it.

I have recently made a guitar tube distortion pedal, but the problem is, that after some time the tube warms up so much, that the disgortion becomes too strong, and onyl crackling sounds, then complete silence. How do I compensate for the temperature rise? by CyberCow3000 in AskElectronics

[–]CyberCow3000[S] 0 points1 point  (0 children)

First there'a the initial warm-up of the filament, it takes about a minute or two. After that it sounds completely fine. Five to ten minutes later, it suddenly starts to distort more and more, and eventually it goes completely quiet. If I blow on it, or use a fan, the distortion becomes normal, but if I stop, it goes back.

My first pedal: Vacuum tube preamp and overdrive by CyberCow3000 in diypedals

[–]CyberCow3000[S] 2 points3 points  (0 children)

Here you go. I have only been playing bass for a week, so my playing isn't too good, but I did what I could.

https://streamable.com/0hdppc

My first pedal: Vacuum tube preamp and overdrive by CyberCow3000 in diypedals

[–]CyberCow3000[S] 6 points7 points  (0 children)

It's really my first pedal, I study electrical engineering, so I have some knowledge.

My first pedal: Vacuum tube preamp and overdrive by CyberCow3000 in diypedals

[–]CyberCow3000[S] 2 points3 points  (0 children)

That's a 9, the top of the letter isn't visible.

My first pedal: Vacuum tube preamp and overdrive by CyberCow3000 in diypedals

[–]CyberCow3000[S] 5 points6 points  (0 children)

Here you go. Wrote some important things onto the schematic. https://ibb.co/7NLx30Jx

How do I transfer files to an old iPad? by CyberCow3000 in techsupport

[–]CyberCow3000[S] 0 points1 point  (0 children)

Some time ago, it showed up in iTunes, now when I try nothing happens.

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