swenk

Hi there Looking for used/ex-hire Litedeck (or compatible variants) various sizes considered many thanks

Hi many thanks Boatman I'll give that a try and report back. I am hoping to interface the system with the Unity IP based intercom system, so that we can pull 4 party line intercoms into the server and communicate with our remote sites and users. Since the server outputs are dedicated and have level controls, I may not need to use the 2:1, but I'll give it a whirl at 0dB and report back on it anyway for others. Not having to buy the intercom hardware has basically made the budget available to invest in the Unity product, bringing us several years forward in our little project. swenk

On further inspection and if my op amp theory serves me properly my own answer to question 3 would be if resistor ladder R1-4 equals R5 in value there should be 0dB gain across the mic amp, so my next question is... is 0dB what I am looking for? and I realise I meant the 8pin header not the 4pin swen

This project is awesome! Thanks Boatman and everyone else that has contributed. I built 20 v1.2 beltpack pcbs up about a year ago and finished off 6 complete units, using them in a school for theatre and outside broadcast work, metalwork needs improving, but I'll probably end up getting the end panels made up properly. We hang them off a canford tecpro master station and use in conjunction with a whole heap of original tecpro, results have been good! My next plan is to build a 4 way rack psu, and then to go on to build a 4 way rack 2-4 wire converter (using the internal 4 pin header on 4 beltpack boards) Later I plan to build a 4ch control panel with mic splitter and circuit 'listen' mixer plus IFB out etc. Question1 does anybody have 2 PSU v1.1 boards available? Question 2 Does the 4 pin header function well as a 2-4 wire ie does it null properly? Question 3 not being into electronics any more, does anybody have the time to work out the resistor changes to convert the 'mic' in on the 4 pin header to a line in? Any help would be greatly appreciated thanks and keep up the good work! swen