Stellar CM1 with FOX 460 MOD and PSU update MOD
- Thread starter axlreddy
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Help Support GroupDIY Audio Forum:
Hmm... 9.5V AC, rectified and smoothed, should give about 13.3V DC, minus a diode voltage drop across the rectifier. That drop seems to be a bit big, at about 1.5V (with almost no load)...
But either way, 11.8V input should be more than enough for the LD1084 to be able to regulate the 5-6v it's supposed to put out.
What're the odds something's not right in that delayed-turn-on circuitry, i wonder?
But either way, 11.8V input should be more than enough for the LD1084 to be able to regulate the 5-6v it's supposed to put out.
What're the odds something's not right in that delayed-turn-on circuitry, i wonder?
That's kinda my pet-peeve re: "paint by numbers" kits.
Yes, having all the "right" parts in one go is nice, and putting them together (at least in theory) is no big deal, but without knowing what component does what, and/or why it was chosen, it's just a nightmare to troubleshoot... :/
Yes, having all the "right" parts in one go is nice, and putting them together (at least in theory) is no big deal, but without knowing what component does what, and/or why it was chosen, it's just a nightmare to troubleshoot... :/
Of course, that's why i really often want to conviece some folks to build microphone from what they have not build just a kit - most microphones can be adapted to any circuit - tube and fet.
Anyway i understand very well, that some people just want to build microphone - because it's cheap, because some circuits aren't available in commercial releases, because it's good to have U47 "clone" in the equipment list, even if it doesn't have nothing to do with the reall U47 (but looks good on the web). These same guys not necessary have a need to learn electronics or anything else.
For me it isn't problem to help with some issues - but! I don't have a time to make all the work for you
If you need help - then give us infromations about the circuit which you build and don't understand. More then better to get solutions.
For example - draw the circuit of the heater (like in this topic) - draw it by hand, even as a "block diagram", just as you can.
I think there's no problem to draw components and check how tracks go, read markings on the parts and write.
I don't see anything complicated here but for me doing the same from blurry pics, where not everything is visible is just a pain in the ass! So!
Help us help you
Anyway i understand very well, that some people just want to build microphone - because it's cheap, because some circuits aren't available in commercial releases, because it's good to have U47 "clone" in the equipment list, even if it doesn't have nothing to do with the reall U47 (but looks good on the web). These same guys not necessary have a need to learn electronics or anything else.
For me it isn't problem to help with some issues - but! I don't have a time to make all the work for you
If you need help - then give us infromations about the circuit which you build and don't understand. More then better to get solutions.
For example - draw the circuit of the heater (like in this topic) - draw it by hand, even as a "block diagram", just as you can.
I think there's no problem to draw components and check how tracks go, read markings on the parts and write.
I don't see anything complicated here but for me doing the same from blurry pics, where not everything is visible is just a pain in the ass! So!
Help us help you
BudCarroll
New member
- Joined
- Jul 9, 2013
- Messages
- 4
I’ve just built one of these powere supplies with the old style donor power supply,
Powers on ok, but I can’t seem to get a heater voltage at pad B.
B+ reads well 120/120,...LV is 4.6 HV is 115 per side.
Thanks in advance.
Powers on ok, but I can’t seem to get a heater voltage at pad B.
B+ reads well 120/120,...LV is 4.6 HV is 115 per side.
Thanks in advance.
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