Fabio's 312 build info

[okgb]

The meta  is not up to date but anyone have his current
website info ?
[ i've got 4 312 projects hanging around and his is one of them  ]

tia

 

[Ptownkid]

what do you need?

 

[okgb]

the parts list with the pcb number designators
[ or the schematic if that shows the parts numbers ]
and to make a panel the order of switches IS
phantom , pad & polarity ? [ seems the standard ]
pcb switches are marked pp , N , pol

He popped in a while o.k. , presume all to be well
B.R.  give us an update

thanks it got sent to me , i can forward if anyone else needs

 

[kazper]

Info has been in the group email for a while, check there.

 

[okgb]

I did check before i posted , saw fabio sontec files
& Jeff's api stuff , was it buried or under a different name ?

 

[pablobolche]

Just sent what I have for this build to the groupdiy gmail. Search for Fabio 312 docs.
Hope it helps.

 

[ettos]

I can't find Fabio's 312 docs anywhere, can someone repost these files in the diygroup gmail?
I'm going to start this project... I have got the schematics but I need PCB layouts.
Matteo.

 

[sam system-d]

I sent what I had.

 

[Sredna]

Switch order (from gain switch) is: phantom, pad, polarity

 

[ettos]

Thank you, I downloaded the files on groupdiy, that's exactly what I needed!

 

[leitrim_lad]

Hey there, sorry for posting in an old thread ut im wondering if anyone can help me. I have a pair of fabio's 312's  built for a good few years now but il looking to add a line input to it. Would anyone have any details on this? I cant find any info online.

Thanks

 

[Whoops]

Hey there, sorry for posting in an old thread ut im wondering if anyone can help me. I have a pair of fabio's 312's  built for a good few years now but il looking to add a line input to it. Would anyone have any details on this? I cant find any info online.

Thanks

That has been discussed a lot of times already.

You need a 40db's pad at the input

Use a U pad with 3 resistors, check values here:
http://www.uneeda-audio.com/pads/

 

[leitrim_lad]

Thanks for the reply.. I had figured it would have been discussed but the problem is i couldnt find the discussion anywhere. Thanks for the info tho. Is there a place to put this on the PCB? I see some ppl have wired a switch to the pcb?

Thanks

Hey there, sorry for posting in an old thread ut im wondering if anyone can help me. I have a pair of fabio's 312's  built for a good few years now but il looking to add a line input to it. Would anyone have any details on this? I cant find any info online.

Thanks

That has been discussed a lot of times already.

You need a 40db's pad at the input

Use a U pad with 3 resistors, check values here:
http://www.uneeda-audio.com/pads/

 

[Whoops]

I dont have that pcb, but I think theres a spot on the pcb for the pad.
you have to follow the schematic:

http://www.hausverwaltung-heger.de/al_leck_trick/Baumann/R312sch_rev3.pdf

pcb layout:

http://www.hausverwaltung-heger.de/al_leck_trick/Baumann/R312parts_rev3.pdf

in case you need help you should post on the APi 312 thread, also that thread has probably all the info you need:

http://groupdiy.com/index.php?topic=246.20

 

[Sun King]

Hi guys,

All the files for the Fabio R312 build are in my 1st post on this thread

http://groupdiy.com/index.php?topic=60436.0

The circuit has a line in connection, and a placement for a SPDT switch in between where the in and out transformers are.

Ben

 

[gar381]

Hey there, sorry for posting in an old thread ut im wondering if anyone can help me. I have a pair of fabio's 312's  built for a good few years now but il looking to add a line input to it. Would anyone have any details on this? I cant find any info online.

Thanks

If you look at the skitz you will see the line pad is between the line input and the mic/line relay.

GARY

 

[gar381]

and the PCB