Cornish Screen

[ech0es]

Where can i buy this part:



Thanks a lot !!

[polaris26]

Looks like a pair of 10-segment LED Bargraph displays stacked end-to-end.  I have a few dozen Kingbright green LED Bargraph displays that I bought at a hamfest a long time ago.   I doubt if I will ever use them all.  Email me and I can send you a few if you cover the postage from 18353, USA, or you can get them from various suppliers, like Jameco (part number 697469 for example).

Dave
foda01@epix.net

Where can i buy this part:



Thanks a lot !!

[bent]

echOes.....

do you have some sort of schematic to make it work
im searching one....

bent

[Processaurus]

http://www.national.com/mpf/LM/LM3915.html

Look up the app notes for that chip, they'll show schematically how to stack multiples of them for more resolution.

Actually looking that up, I found out the LM3915 has a logarithmic response, like what you would want for audio level monitoring, and the LM3914 has a linear response, like you would want for monitoring control voltages, like a slow LFO on a phaser or flanger.

[polaris26]

Pardon my ignorance - but what exactly is a 'Cornish Screen' (I've heard of a Cornish Hen) ?  I couldn't find anything on AltaVista...

Dave

[QSQCaito]

I believe he's referring to Pete Cornish. A well known stompbox maker, he has his own designs, and makes awesome pedalboards. David guilmour as an example.

[CGDARK]

Pardon my ignorance - but what exactly is a 'Cornish Screen' (I've heard of a Cornish Hen) ?  I couldn't find anything on AltaVista...

Dave

It's not a screen, what you see in the photo are two 10-segment LED Bargraph display stacked together and driven maybe by two LM3915 cascaded for 60dB range (-40dB to +3dB to be exact). The builder is Pete Cornish.

http://www.petecornish.co.uk/

CG