My hammer is bigger than yours
So, is this a race?
I can slap some TO-3's in there.... juice them up to 100mA or so...
17 mA will give you a function time of app.. 8-10 hours on at 9V rechargeable battery...But of course some kind of charging system could be made.. Normally I would defer any switches in the signal path....I am not really sure this is in the signal-path, as it's floating around...
I am not sure,
baxandall super pair or some circuit can suppress the current fluctuations caused by early effect and Cob, can't it?
smms73's first circuit seems returns them to output too.
I have try the baxandall super pair, and it works, its a nice concept too.
i dont have time right now, but later i will talk about this.
thanks Shinja
Circuit ideas are popping up here like flowers in spring ! I really have fun. This is very different then other threads where is only talk. I appreciate it.
Enjoy the spring while it lasts, because the gardener has to go back to other projects
A paper that i find yesterday By Malcom Hawksford
http://www.essex.ac.uk/csee/research/audio_lab/malcolmspubdocs/J10 Enhanced cascode.pdf
http://www.essex.ac.uk/csee/research/audio_lab/malcolmspubdocs/J10 Enhanced cascode.pdf
0.00005% 10khz 8ma-pp 500ohm input 0,5v rms out
this use BISS transistores from nxp, very good for low inpedance input.
Datasheet:
http://www.nxp.com/documents/data_sheet/PBSS302NZ.pdf
this use BISS transistores from nxp, very good for low inpedance input.
Datasheet:
http://www.nxp.com/documents/data_sheet/PBSS302NZ.pdf
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0.00005% 10khz 8ma-pp 500ohm input 0,5v rms out
this use BISS transistores from nxp, very good for low inpedance input.
Datasheet:
http://www.nxp.com/documents/data_sheet/PBSS302NZ.pdf
Whoa! cascoded darlingtons! cool! I like this one a lot!
I don't think you need C1 if you are operating in class A.
I worked with Malkolm in the 90th. I know his work well.
This BISS transistors are really special. Not much voltage they can stand but a lot of current !
I would still try one of your circuits an an input stage for a phono. I could not stabilize the first circuit i made. What do you recommend i could try ?
This BISS transistors are really special. Not much voltage they can stand but a lot of current !
I would still try one of your circuits an an input stage for a phono. I could not stabilize the first circuit i made. What do you recommend i could try ?
I worked with Malkolm in the 90th. I know his work well.
This BISS transistors are really special. Not much voltage they can stand but a lot of current !
I would still try one of your circuits an an input stage for a phono. I could not stabilize the first circuit i made. What do you recommend i could try ?
I think you should try snubbers, there are some examples in some of the circuits i post. try the nodes that i call UP and DOWN, or at the input, but it help if you post a circuit.
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- dac I/V convertion with very low distortion