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Post by EmRR on Feb 19, 2021 12:40:22 GMT -6
Amazing the used market doesn't seem to be flooded with them, and Alibaba is such a cluster I can't even see them on there for the $4 they probably cost.
Anyone?
You know, the thing that comes with Apex 460's, MK67's, and a ton of other Chinese tube mics.
Looking for the 6V filament version, but I could make the 12V version work too.
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Post by jcoutu1 on Feb 19, 2021 12:45:24 GMT -6
I'm back at the studio tomorrow and THINK I might have one laying around. I'll check it out.
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Post by tasteliketape on Feb 19, 2021 16:12:23 GMT -6
I have one from a old Charter Oak mic if you want
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Post by EmRR on Feb 19, 2021 17:10:35 GMT -6
tasteliketape is sending me one, thanks!
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Post by svart on Feb 21, 2021 23:19:00 GMT -6
6V and what? Are they 150V?
I can send one of my smps boards. I'd be interested how it works for something like a regular mic.
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Post by EmRR on Feb 22, 2021 8:43:33 GMT -6
6V and what? Are they 150V? I can send one of my smps boards. I'd be interested how it works for something like a regular mic. thanks. I’m actually using it to power a preamp that required DC filaments from a battery originally, I’ve tested the changes to get 180V at 8mA on another one, and 6V hangs fine but should have the regulator current rating raised along with a bigger heatsink. Or ditch it in favor of power resistor drop in the filtering, it’s eating 700mA. More or less chasing the most inexpensive box / PT / connector package. |
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Post by svart on Feb 22, 2021 9:05:08 GMT -6
6V and what? Are they 150V? I can send one of my smps boards. I'd be interested how it works for something like a regular mic. thanks. I’m actually using it to power a preamp that required DC filaments from a battery originally, I’ve tested the changes to get 180V at 8mA on another one, and 6V hangs fine but should have the regulator current rating raised along with a bigger heatsink. Or ditch it in favor of power resistor drop in the filtering, it’s eating 700mA. More or less chasing the most inexpensive box / PT / connector package. Well, I'd still send you one if you wanted to give it a try. It should be able to hit 180V. Heater supply does 6-12V with a 15V input although I've only run it at 6V with these little russian pentodes. Since it's SMPS there's very little heat. |
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Post by EmRR on Feb 22, 2021 9:26:58 GMT -6
thanks. I’m actually using it to power a preamp that required DC filaments from a battery originally, I’ve tested the changes to get 180V at 8mA on another one, and 6V hangs fine but should have the regulator current rating raised along with a bigger heatsink. Or ditch it in favor of power resistor drop in the filtering, it’s eating 700mA. More or less chasing the most inexpensive box / PT / connector package. Well, I'd still send you one if you wanted to give it a try. It should be able to hit 180V. Heater supply does 6-12V with a 15V input although I've only run it at 6V with these little russian pentodes. Since it's SMPS there's very little heat. Happy to try one out, I've got another tube mic project, not sure when I'll get to it though. Let me keep that in the back of my mind, I don't want to waste your time sending one when I'm not sure when I'll get to it. |
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