Which Rotary Switches are best to make dual concentrics?

[Guest allistah]

I've started working on my glare panel and want to incorporate the dual concentric rotary switches with push buttons on the EFIS like the 737NG has.Does anyone have any recommendations for the standard rotaries that are the best/easiest to convert over? If someone has had really good luck with a certain one, please let me know. I'd love to hear your opinions.Also, where do I pick up knobs for these switches once I get them made?

[Guest perchas]

Look at these.http://personal.telefonica.terra.es/web/ka...tutoriales.htmlSaludosRafael

[Guest Dodiano]

Rafa mandame un E-mail [email protected] necesito tu ayuda para los Rotaries.Saludos.RobertoRafa please send me an e-mail need help with Rotaries.Roberto