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Third GB - MAYA advanced R-2R logarithmic ladded
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Old 17th June 2018, 05:33 AM   #21
PieterPiet is offline PieterPiet  Netherlands
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Thanks Tibi!

Can I ask, what contact form do your two push buttons for 'on/off' and 'select' have? Those are not Momentary and Normally Open (NO)?
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Old 17th June 2018, 07:42 AM   #22
tvicol is offline tvicol  Europe
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Third GB - MAYA advanced R-2R logarithmic ladded Third GB - MAYA advanced R-2R logarithmic ladded
Hi Pieter,


Push buttons are momentary buttons, normally open.


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Tibi
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Old 12th July 2018, 10:45 PM   #23
angrypat is offline angrypat  United States
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Third GB - MAYA advanced R-2R logarithmic ladded
Disappointed with the momentary power button but oh well, I'll have to work around that. Any updates?
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Old 13th July 2018, 06:09 AM   #24
tvicol is offline tvicol  Europe
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Quote:
Originally Posted by angrypat View Post
Disappointed with the momentary power button but oh well, I'll have to work around that. Any updates?
It is a stand-by power button and you may change this with any fancy back-lighted push button. If you have any suggestion, or explain why dissapointed, may help us to improve the product.
Recently I had a car crash, nobody was hurt, but this delayed my work on preparing units and shipments. Sorry for this. Will start to ship first orders next week.

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Tibi
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Old 13th July 2018, 06:45 AM   #25
PieterPiet is offline PieterPiet  Netherlands
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Thanks for the update Tibi and happily nobody was hurt!

With regard to changing the push buttons.....you show a nice example by Gerben on your twitter account, I assume Gerben used something like a bulgin (SPST-NO) with a ring led for 'on/off'. And another push button without led for 'select'.

One suggestion about the current push buttons. Your standard push button looks to me like it isn't suitable to integrate directly in a front panel. If I am right, your standard push buttons need some kind of 'finishing front/touch part' to have the button integrate nicely with a alu (silver or black) front panel. I wonder if there are any standard 'anodized silver/black alumina button parts' that fit on your push buttons. A reference (mouser digikey etc) to such parts and how to integrate into a front panel design might be helpful for people.

For myself, I will use bulgin buttons anyway as I use these in all my equipment and I want them to look alike.
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File Type: jpg Vicol Twitter gerben.jpg (84.7 KB, 146 views)

Last edited by PieterPiet; 13th July 2018 at 06:58 AM.
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Old 13th July 2018, 11:19 AM   #26
angrypat is offline angrypat  United States
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I'm new to diy, and my knowledge is limited. I plan on incorporating this into a pre with an aksa lender and Hans allmiers high octane phono stage, and possibly a tone control. So.. I think a n/o spst switch would have been easier, but I'll figure it out. Certainly not a criticism, looking forward to it's arrival, the maya will be great way to make a fully functional and complete pre amp, although I am way behind on my projects so no hurry. Fortunately, I found this forum, with it's wealth of knowledge and helpful people, an amazing place and resource. Still need to finish the F6 first!
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Old 13th July 2018, 11:22 AM   #27
angrypat is offline angrypat  United States
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Pieter Piet, I like that button, 16mm?
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Old 14th July 2018, 08:08 AM   #28
tvicol is offline tvicol  Europe
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Illuminated push-button switch, Backlit push-button - All industrial manufacturers - Videos

An here a search on farnell.
http://uk.farnell.com/search?st=msm%2019

digikey
Pushbutton Switches | Switches | DigiKey

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Tibi
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Last edited by tvicol; 14th July 2018 at 08:16 AM.
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Old 15th July 2018, 06:50 AM   #29
PieterPiet is offline PieterPiet  Netherlands
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Can I check the switch type of the buttons with you for certainty?

In the last post the links refer to: circuit = 'SPDT' and I see various switch functions --> 'on-momentary' and 'Off-momentary'.

Looking at the picture of the Maya on/off and select buttons, I think we do not need for circuit 'SPDT' but can also use circuit 'SPST' (single-pole, single-throw). Am I right?

For Switch function we need: 'off -momentary'. So the switch is only closed (connected) when being pushed. Not being pushed, the switch is open. Am I right?
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Old 16th July 2018, 08:18 AM   #30
tvicol is offline tvicol  Europe
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Yes, you are right. Not being pushed, the switch is open.

You need a SPST-NO Single Pole, Single Throw, Normally Open

More precise, something like http://uk.farnell.com/schurter/3-102...13?st=msm%2019

http://uk.farnell.com/apem/av0630c90...3?st=SPST%20NO

http://uk.farnell.com/multicomp/mpb1...4?st=SPST%20NO

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Tibi
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