I read much of the forum yesterday, but not all of him, had to study for tests and do some work.
The point is that I am not yet decided to build it for only one question:
He really is good (sound), and reliable as commercial equipment (here in Brazil there are two very good brands, and StudioR HotSound) and considering also brands such as crest, crown, etc. ..
The B500 can really be compared to these brands?
(Of course, if good construction) is that his scheme is very simple, unlike the commercial amps mentioned, I think it "strange"
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As it showed me, my english sucks, it's because I'm from Brazil and use the google translator
The point is that I am not yet decided to build it for only one question:
He really is good (sound), and reliable as commercial equipment (here in Brazil there are two very good brands, and StudioR HotSound) and considering also brands such as crest, crown, etc. ..
The B500 can really be compared to these brands?
(Of course, if good construction) is that his scheme is very simple, unlike the commercial amps mentioned, I think it "strange"
----
As it showed me, my english sucks, it's because I'm from Brazil and use the google translator
The function of B500 is more complex than most commercial amps, but implementation is with simple circuit. If you don't understand how it work you can't see adventage of this circuit. If you need PA amp is better buy it. You must have more expiriance for build reliable amp.
Regards
This is the wiring for my torroidal tranformer:
Input 120V are the 2 white wires
Output/Secondary
2 X Yellow and Black 52V
Blue - Blue 20V
Org - Org 10V
Red - red 10V
Vio - Vio 6.3V
It doesn't have 18v tap to feed the protect circuit. Can I use the 20v or would it be better to use 10v and 6.3 in series to get 16.3v? Thanks in advance for any help.
Input 120V are the 2 white wires
Output/Secondary
2 X Yellow and Black 52V
Blue - Blue 20V
Org - Org 10V
Red - red 10V
Vio - Vio 6.3V
It doesn't have 18v tap to feed the protect circuit. Can I use the 20v or would it be better to use 10v and 6.3 in series to get 16.3v? Thanks in advance for any help.
You need 2x18v or 2x20v for protect circuit, use two 10v in series to get second 20v.
I started new thread, you can find pcb there
http://www.diyaudio.com/forums/solid-state/167363-mic-line-eq-preamps.html
Regards
Hi...Apex..for B500, how much DC offset will be recomended?? I built B500 with 5 pair 2SA2151B/2SC6011B and DC offset is 6,9mv. Is it OK?
Pozdrav..
Pozdrav..
oh sorry, thought i have it uploaded,im just new in posting🙁...first timer😱
and im on and off on the internet since i aint got any means of connection at home...
hi apex can i use two driver transistors in parallel? coz im thinking of upgrading my b500 to h900. since the only transistor with about higher operating voltage available here i guess is 2SA1011 and 2SC2344....
