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Line stage pre amplifier

dazz lee

Active Member
Does anyone design make supply any on here ? or have decent one to sell, like a Grad one ? or recommend one. Cheers Daz . Feel free to pm .
 
I'm planning a pre-amp build using components from Neurochrome, with their Universal Buffer as a key component. It might do what you need.

The nice thing about this module is that it can support balanced or unbalanced connections (including converting between them).

FYI, I'm powering it with their Preamp Power Supply.
 
Something different to consider if you have the DIY skills if not just skip past this post.

Korg Nu-Tube pre, sounds very good, powered by a 'wall wart' and there's a complete step by step build guide.

8q2ttZ9l_bhFwZPJ0A3yq2sUv-BJ6bc5C6XfmjUxAVlWX7AgRzpyvYqPoHhhkdCZ9XVg9y-AN5yzDbD32fPzu5c_KH2NBOULJNljP6jnkntzH-arWrS_dStqPssttIubMDlT-aRD3rpOSVSCqzxyDeToEuLcAifnayd_HZSrxUcZbevUGw-8pHtv_sJvEMzzJXSnO3lLgOVYLxs9Q4Ts_CbSMWgzH9sFDcDUB6-dhrZDCBZ-fODltJn7eN3zQQba888719p0QoVxs57NvdoxuipPiUlak2JJ3RNdACQIJlWCIcG-3JPk2G9D5_CF18z7SYEcskrbu2Op_3WT0kafLztZFEkKB1vnMGC3ruA6qol267K15tve0VIAxc08Rk_tlLTjT5nhnThvO-Dt5o75JkJZ4m31nrvhw6fPflnLOHaheFXmrqiC36QXR3dqtCEfyODf2-iO3MnvWhVRns1xC8TMHotDTS9LpvrE2U7tZaIyyGgmBJpvfQOTmqZwms8v8CIDZoM7JiSqoq4uj2_89VDFaa5u-nthViwK1bRnNoP3woYMKWXwK7GY0n5OEJYI6EDnTz_ILAT7PI2ZzUAyb3ZRvU5Qk3T-M4J-BYZS5t8HjeUnVH3dRQI4aCzk9iIOWAyfnh3WO8iAiyym2UFNBaivcVgNECBN6Jjdqzo9fUlrv0fCkvDxnr9ph8cxWoVOai56Kh7RfdeqlvXZ-3czlybQuhdoHkO3iwV6tuOT877ZN9Wssh3gbzv0FZ7moqJ3BLzugmYylkJ5LRXQAV7Lu1ZucG6FSBDiqjuzTXxZvmFuBLaU35BrkAtcXl3uEvfnaAFR7qgFFUjHcPOd4VKu7PIsOCSwkeAhaN9KODMAvk3eAtsIXov-Iihr_vKth2YtRO7lrmZQHU5Mz30H2egYIsH37HONG-Zc7gpn85Iwc2W8=w1290-h890-no


https://diyaudiostore.com/collections/newest-releases/products/korg-nutube-b1

and another..the Noir

Though designed as a HPA it works very well as line level pre amp and again a nice build guide and lots of info on the DIYaudio web site.

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https://diyaudiostore.com/collectio...ir-headphone-amplifier?variant=30182425526306
 
Make yourself a Croft clone - no need for any boards, all tag strip.

Several of the countless different circuits used by Glenn are available online.
 
Does anyone design make supply any on here ? or have decent one to sell, like a Grad one ? or recommend one. Cheers Daz . Feel free to pm .
Grad one not 'decent'.. IMHO

What do you want to achieve? Unity gain, or tons of gain? How many inputs? Valves, or SS?
 
I have a couple of B4 boards as well, you can have one if you want to build from scratch

Alan
 
...and please let us know the VA rating as well!
Anything will do - it only draws about 10mA per channel, so even 1VA would work. Transformers don't get much cheaper below say 10VA, so that would be a sensible size, but if you have some other size in the parts drawer, or see a bargain, it really doesn't matter. Bigger does little harm, but is a waste of money.

The little blue encapsulated toroids come in 7VA and 5VA sizes, either would be fine.

I agree, that is a very tidy build.
 


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