***Official Electronics Thread of Officialness (it starts off with lots of Nixie Tube Clock goodness

dirtychinchilla · 21 Feb 2012 at 21:24

Oh wow! Thanks a lot dude! I may have to ask you some more questions about it but that looks fantastic, and perfect as far as I can tell. Would you be able to tell me which components I'd need? I was looking at this variable resistor and this screen. You are fantastically helpful.

Burnsy2023 · 22 Feb 2012 at 11:49

My parts have arrived:

One kit from PV electronics, 4 x IN8 and 2 x in 17 for the seconds.

joemo13 · 22 Feb 2012 at 13:23

Nearly finished my kit, turned out I had a duff tube in the end.

430732_10150555382870976_691810975_9430049_73704973_n.jpg

Burnsy2023 · 22 Feb 2012 at 13:52

What tubes are they?

joemo13 · 22 Feb 2012 at 14:10

IN-16's, bought a kit when it was the only one to go up the other week.

Feek · 22 Feb 2012 at 18:56

I've been winding inductors - 4 x 3.2uH inductors made from 25 turns of 32swg enamelled wire on an Amidon T50-2 toroid.

These are to go in an ADSL filter I'm building.

Dr.EM · 22 Feb 2012 at 19:04

dirtychinchilla said:
Oh wow! Thanks a lot dude! I may have to ask you some more questions about it but that looks fantastic, and perfect as far as I can tell. Would you be able to tell me which components I'd need? I was looking at this variable resistor and this screen. You are fantastically helpful.

The audio tag means it's logarithmic. Looks like you're using a micro so you can correct it in code but make your life easier by using a linear type potentiometer!

I imagine an LCD or 7-seg with direct I2C and/or SPI interfacing will be the simplest solution if you are just displaying numeric data.

Lakeland · 22 Feb 2012 at 19:07

dirtychinchilla said:
Oh wow! Thanks a lot dude! I may have to ask you some more questions about it but that looks fantastic, and perfect as far as I can tell. Would you be able to tell me which components I'd need? I was looking at this variable resistor and this screen. You are fantastically helpful.

Best bet would be to head over to the picaxe forum and get them to check it over, I'm only just in the middle of working out how to use it myself so I wouldn't want to send you off in the wrong direction. The image I posted is a good starting point for them to help, usually they ignore posts if people haven't made an effort to have a go

daelo · 22 Feb 2012 at 19:38

Would anyone know where to put me in the direction of making an ultransonic emitter... similar to something that would go into those cat scarers? Have an interesting project in mind!

Makhaira · 22 Feb 2012 at 20:45

Farnell would be a good start matey

. Also RS Electronics.

dirtychinchilla · 22 Feb 2012 at 21:43

Dr.EM said:
The audio tag means it's logarithmic. Looks like you're using a micro so you can correct it in code but make your life easier by using a linear type potentiometer!

I imagine an LCD or 7-seg with direct I2C and/or SPI interfacing will be the simplest solution if you are just displaying numeric data.

Ok thanks, I'll have a look around. I've seen some LCD screens whilst searching.

Lakeland said:
Best bet would be to head over to the picaxe forum and get them to check it over, I'm only just in the middle of working out how to use it myself so I wouldn't want to send you off in the wrong direction. The image I posted is a good starting point for them to help, usually they ignore posts if people haven't made an effort to have a go

Great, thank you. I'll register and post...I guess in the "Active Pickaxe Forum"?? Do you know whether there are any free versions or different, free, softwares which allow you to do that sort of circuit board planning?

Lakeland · 22 Feb 2012 at 22:24

dirtychinchilla said:
Ok thanks, I'll have a look around. I've seen some LCD screens whilst searching.

Great, thank you. I'll register and post...I guess in the "Active Pickaxe Forum"?? Do you know whether there are any free versions or different, free, softwares which allow you to do that sort of circuit board planning?

Yeah that's the best place to post. The software is free here: http://www.genieonline.com

I'd use this LCD as it will link in with the genie software and save a lot of hassle:
http://www.rapidonline.com/Electronic-Components/Genie-Serial-LCD-Kit-13-6026

dirtychinchilla · 22 Feb 2012 at 22:31

Lakeland said:
Yeah that's the best place to post. The software is free here: http://www.genieonline.com

I'd use this LCD as it will link in with the genie software and save a lot of hassle:
http://www.rapidonline.com/Electronic-Components/Genie-Serial-LCD-Kit-13-6026

Thank you very much Lakeland. I'll have a go at designing something and see how I do.

pyropetepete · 22 Feb 2012 at 22:35

Feek said:
I've been winding inductors - 4 x 3.2uH inductors made from 25 turns of 32swg enamelled wire on an Amidon T50-2 toroid.

These are to go in an ADSL filter I'm building.

Why not buy one?

dirtychinchilla · 22 Feb 2012 at 22:41

Would this be a better pot to use?

Dr.EM · 22 Feb 2012 at 23:47

That's a linear yep, should do fine

dirtychinchilla · 23 Feb 2012 at 00:03

Great, cheers Dr.Em

Lakeland, how do I get that circuit view that you've got...I've got GENIE design studio but couldn't find Circuit Wizard.

Feek · 23 Feb 2012 at 08:34

pyropetepete said:
Why not buy one?

Nobody makes one. It's custom designed to insert huge levels of attenuation above 2.2MHz so that I can stop my ADSL dropping in speed and sometimes cutting out when I transmit on 3.5MHz and 7MHz.

Here's the circuit.

pyropetepete · 23 Feb 2012 at 09:48

Feek said:
Nobody makes one. It's custom designed to insert huge levels of attenuation above 2.2MHz so that I can stop my ADSL dropping in speed and sometimes cutting out when I transmit on 3.5MHz and 7MHz.

Here's the circuit.

Sorry i forgot your a HAM! it's of no use to everyone else then?

Burnsy2023 · 23 Feb 2012 at 09:53

Feek said:
I've been winding inductors - 4 x 3.2uH inductors made from 25 turns of 32swg enamelled wire on an Amidon T50-2 toroid.

These are to go in an ADSL filter I'm building.

How accurate have you managed to get these? What's your tolerance on 3.2uH?