matta
Well-known member
Hi Guys,
I fired up the pair of greens (V14) I am building this weekend and they work, within reason... they are really clean and quite, the Phase and High Pass work but the Phantom is freaking out.
I suspect on one channel the switch might be faulty as it is not throwing from one pole to the other, so it doesn't matter if you switch in our out the voltage stays on one pin, through it does effect the audio circuity with a VERY loud hum when switched OUT, but fine when switched in...
On the second pre I get they same hum when the Phantom is engaged. I am too afraid to connect it to a condenser for fear I might blow it up, right now I am using a low cost dynamic, which works fine except when the phantom is engaged, it still works, but the hum is induced.
I measures the phantom rail and it is 46.7V when switched out and 41.2V when switched in.
Any idea on what is causing the hum or how to fix it? I am stumped, being a newbie and would appreciate any advise.
Thanks
Matt
I fired up the pair of greens (V14) I am building this weekend and they work, within reason... they are really clean and quite, the Phase and High Pass work but the Phantom is freaking out.
I suspect on one channel the switch might be faulty as it is not throwing from one pole to the other, so it doesn't matter if you switch in our out the voltage stays on one pin, through it does effect the audio circuity with a VERY loud hum when switched OUT, but fine when switched in...
On the second pre I get they same hum when the Phantom is engaged. I am too afraid to connect it to a condenser for fear I might blow it up, right now I am using a low cost dynamic, which works fine except when the phantom is engaged, it still works, but the hum is induced.
I measures the phantom rail and it is 46.7V when switched out and 41.2V when switched in.
Any idea on what is causing the hum or how to fix it? I am stumped, being a newbie and would appreciate any advise.
Thanks
Matt