RC,
Not exactly what you want BUT
SP6 , 8, 10, 11, 14, 15 schematics are here:
http://www.pi.infn.it/~federico/further.htm
I'd just grab copies of the SP8 and SP10 and hope that teh SP9 is somewhere in between.
Cheers,
Ian
Not exactly what you want BUT
SP6 , 8, 10, 11, 14, 15 schematics are here:
http://www.pi.infn.it/~federico/further.htm
I'd just grab copies of the SP8 and SP10 and hope that teh SP9 is somewhere in between.
Cheers,
Ian
mkI
Hi Folks and mainly Toaster,
I'm in the same situation for the need of a circuit diagram for a SP9 mkI.
The ARC dealer in Denmark won't handover a sheet to even if I pay for it.
My ARC SP9 has a modified phono section. The 2 big transistors (in a TO-220 housing) in the mid of the phono stage has been removed a modified with one EC91 in each channel. Somebody claims that this is in the powersupply section of the phono section but I doubt. So I will be very pleased to see a circuit diagram for the SP9 (the original version, but a later version will also be apreciated
Regards
Valde
Hi Folks and mainly Toaster,
I'm in the same situation for the need of a circuit diagram for a SP9 mkI.
The ARC dealer in Denmark won't handover a sheet to even if I pay for it.
My ARC SP9 has a modified phono section. The 2 big transistors (in a TO-220 housing) in the mid of the phono stage has been removed a modified with one EC91 in each channel. Somebody claims that this is in the powersupply section of the phono section but I doubt. So I will be very pleased to see a circuit diagram for the SP9 (the original version, but a later version will also be apreciated
Regards
Valde
Caliban!
Wow, I would be very pleased to get an email from you with the scanned circuit diagram for the SP9
The web side Luke mentioned does not include the SP9, SP1->8 and SP10-> so again I will be very happy to receive your email
Regards
Valde
flemming.skov@nypost.dk
Wow, I would be very pleased to get an email from you with the scanned circuit diagram for the SP9
The web side Luke mentioned does not include the SP9, SP1->8 and SP10-> so again I will be very happy to receive your email
Regards
Valde
flemming.skov@nypost.dk
Re: SP9 Line Circuit?
Don't tell me you're itching to clone ARC's worst ever preamp when curcuits for LS25 & LS25Mk2 are available.
calvert73 said:but my hand is itching!
RC
Don't tell me you're itching to clone ARC's worst ever preamp when curcuits for LS25 & LS25Mk2 are available.
caliban said:I have the schematic. if you don't get if from anyone else, let me know and I will photograph it and send it to you. Mine is dated 4-20-97, it's an original SP9.
caliban, I can't find the schematic anywhere. Do you still have the possibility to send me a copy? I would be very pleased then ;-)
Regards
Valde
Re: Re: SP9 Line Circuit?
Why would you even bother with that?analog_sa said:Don't tell me you're itching to clone ARC's worst ever preamp when curcuits for LS25 & LS25Mk2 are available.
Re: Re: Re: SP9 Line Circuit?
I wouldn't
Brett said:Why would you even bother with that?
I wouldn't
which pre then
brett and analog_sa, if you were going to build a balanced valve pre, something with some gain and not rare silly price and availability tubes, which would you build?
My understanding is the arc ls25mkII is quite a good pre amp, but then that was reviews not listening.
cheers arthur
brett and analog_sa, if you were going to build a balanced valve pre, something with some gain and not rare silly price and availability tubes, which would you build?
My understanding is the arc ls25mkII is quite a good pre amp, but then that was reviews not listening.
cheers arthur
Re: which pre then
http://www.raleighaudio.com/Figure_18.jpg
...but with ECC99, 6H30 or 6H6N and OPT adjusted accordingly. EL84 in triode with a sufficient amount of current would also be nice.
It all depends upon how much gain you want.
Without the input trans, Allen Wright's RTP3C front end could be added with a little tweaking of RIAA components to give phono capability and would come close to the last full function pre I built, and is similar to the next one I have planned. All my vinyl is stored at the moment and will be for some time yet, so it's way down on the to-do list.
Assuming no phono pre reqd, a balanced version of my 12B4 with siutable OPT orLuke said:brett and analog_sa, if you were going to build a balanced valve pre, something with some gain and not rare silly price and availability tubes, which would you build?
http://www.raleighaudio.com/Figure_18.jpg
...but with ECC99, 6H30 or 6H6N and OPT adjusted accordingly. EL84 in triode with a sufficient amount of current would also be nice.
It all depends upon how much gain you want.
Without the input trans, Allen Wright's RTP3C front end could be added with a little tweaking of RIAA components to give phono capability and would come close to the last full function pre I built, and is similar to the next one I have planned. All my vinyl is stored at the moment and will be for some time yet, so it's way down on the to-do list.
caliban said:Valde, I sent the schematic on Feb 22. I can resend if if you did not receive it, please advise.
Caliban, hmm I have not received this long awaited email
Last week there was a ADSL break.out in my area for 36 hours. so maybe I has been harmed by that.
With Regards
Valde
flemming.skov@nypost.dk
caliban said:V,
I resent the schematics (6 pages) on March 2, 6:20 A.M. EST (USA). If you do not receive the email this time, let me know and we'll figure something out.
Make sure your spam filter does not bury it, sender is flatsixxx.
Caliban, this is very strange! I have not received your mail. Eventhough that I had received other emails this day ?!? I'm not aware that I have a spam filter, if so, it's administrated by the ADSL operator which is DK's biggest operator on this field and should manage this kind of files...
Do you send it direct to flemming.skov@nypost.dk ?
Thanks for your efford in advance...
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