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DIYnewbe 7th September 2010 10:07 PM

Gap pre-73 mod
Like my name says i am new to the DIY thing. I got some basic electronic skils. But normaly i take something out of the box, plug it in, and play with it.
But now i am ready to jump in the deep end.
My first project is modding 2 Gap pre's audio-shop
2 Carnhill transformers are ordered already. CA-18-VTB1148
This far i am :)
Welcome to Carnhill Transformers Limited

But my questions:
-what more can you do with the pre's? any expierience? Some guys/ girls who did it already and did it get better?

I am not afraid to experiment, so crazy or original tips are always welcome..


DIYnewbe 8th September 2010 06:08 PM

Nobody?? :(

homemodder 8th September 2010 06:48 PM

Maybe none of us has this preamp or has worked on one, do you have any more details about it, a schematic would be great, youd recieve tons of ideas then.

Bone 8th September 2010 07:30 PM

At about 300 euros each these preamps shouldn't need modding! What are you trying to do and I do hope they are not new ones :)

DIYnewbe 8th September 2010 08:40 PM

Thanx for the reply's.

The pre's are good indead. Worth the money and so on. But for me it's more a project of learnig about circuits and components.
I have already preamps in a lunchbox from API that costs the double than these. I just want to pimp it up to this level (or not, like i said it's a project).
So like the carnhill transformers... I want to find out what can they do, is it worth the money doing changes.
Next step is building something from fivefishaudio diy preamps , and than something from zero. But for that i have to learn some more from al the fanatics on this forum ... :)

btw: looked for the schematics, didn't find them. I will contact Bart from for these.

Rewind 29th August 2013 12:37 PM

I am very satisfied with the sound of the Pre73. The modd is so cheap it could be fun to try it.

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