Elektor USB magic eye

seroxatmad · 26th March 2010, 04:21 PM

Hope this is the correct area to start this thread...anyway in the January 2010 Elektor magazine it has an article on a PC USB load indicator using a EM84 Magic Eye tube.

http://www.elektor.com/magazines/201....1191254.lynkx

I was after some advise to use this as a base for an audio line level VU meter.

The main advantage is it works off the USB 5V supply so was after keeping this and running it off a 230/5V plug in mains unit.

Cheers

John

Rodeodave · 26th March 2010, 04:32 PM

The link doesn't work for me.

Other than that, nice idea. I'm interested.

hidnplayr · 26th March 2010, 04:34 PM

you could probably use the step-up converter from the elektor schematics, combined with this: Audio VU meter - AhA! Webdevelopment & Design

seroxatmad · 05:02 PM

This should work hopefully

USB Magic Eye - ELEKTOR.com | Electronics: Microcontrollers Embedded Audio Digital Analogue Test Measurement

I was thinking about using the link you suggested but a few pointers would be grateful. Searching the internet it seems to be the latest of a "magic eye" i could find. I have also seen some which only use the em84 and no other tubes, but am not sure which would be best.

Cheers

John

26th March 2010, 04:21 PM	#1
seroxatmad diyAudio Member Join Date: Dec 2006 Location: Durham, UK	Elektor USB magic eye Hope this is the correct area to start this thread...anyway in the January 2010 Elektor magazine it has an article on a PC USB load indicator using a EM84 Magic Eye tube. http://www.elektor.com/magazines/201....1191254.lynkx I was after some advise to use this as a base for an audio line level VU meter. The main advantage is it works off the USB 5V supply so was after keeping this and running it off a 230/5V plug in mains unit. Cheers John

26th March 2010, 04:32 PM	#2
Rodeodave diyAudio Member Join Date: Dec 2004 Location: in the alps Blog Entries: 1	The link doesn't work for me. Other than that, nice idea. I'm interested. __________________ Gravity - Making the G since 13.7 billion B.C.

26th March 2010, 04:34 PM	#3
hidnplayr diyAudio Member Join Date: Sep 2008	you could probably use the step-up converter from the elektor schematics, combined with this: Audio VU meter - AhA! Webdevelopment & Design __________________ Real tubes have top-caps

26th March 2010, 04:56 PM	#4
seroxatmad diyAudio Member Join Date: Dec 2006 Location: Durham, UK	This should work hopefully USB Magic Eye - ELEKTOR.com \| Electronics: Microcontrollers Embedded Audio Digital Analogue Test Measurement I was thinking about using the link you suggested but a few pointers would be grateful. Searching the internet it seems to be the latest of a "magic eye" i could find. I have also seen some which only use the em84 and no other tubes, but am not sure which would be best. Cheers John Last edited by seroxatmad; 26th March 2010 at 05:02 PM.

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