Phantastic - DIY Phantom Power Checker Not sure if it detects everything this detects (e.g. voltage to mains ground, and I'm not sure how to differentiate pin 1 lifted vs. no phantom present, etc, since their tester is designed to confirm proper phantom power and cabling rather than to confirm the absence of phantom power), but what it does detect I'd guess it detects more How To: Scratch Build 48V Phantom Power Supply For Click to view on Bing18:51In this video we will explore scratch building a 48V Phantom power supply. Scratch Build 48V Phantom Power Supply For Condenser Mic's Schematix. How To Build A Resistive Load TesterAuthor: SchematixViews: 43K 48V Phantom Feed Supply for Microphones Introduction. For reasons that I find somewhat puzzling, there are very few decent 48V phantom power supply schematics available on the Net. Those that I have seen are either very crude, or require the use of a special transformer that (naturally) is all but unobtainable (or both). Q. My preamp’s phantom power is faulty — how do I track Most phantom-power problems are caused by faulty cables, which you can identify either with a cable tester or by swapping out the cable for another that you know to be OK. Do you know where I can find a schematic for the TL Audio 5001 mic preamp? It is mentioned in the Group DIY forum a few times, but the link to a schematic no longer exists. Phantom power tester with test tone. PT01 is a small phantom power tester housed in a XLR plug. Indication is with a test tone and a LED. The tester works for P12, P24 and P48 systems. Phantom voltages. The following phantom voltages are defined in IEC61938: Schematic. Fig.1: PT01 schematic. Phantom Power Microphone wiring and circuit diagram Hence phantom powered microphones have the advantage of sending much larger signals down the wiring which means less probability of interference = better. All lead pluggable microphones featured on this site are phantom powered. How do I check if my microphone mixer has phantom power? The first thing to check is the microphone lead wiring.