|Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum|
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|13th August 2006, 09:53 AM||#1|
Join Date: Aug 2006
Musical Pre-amp topology needed. Interstages please apply!
Rather than buying a pre-amplifier, I'm going to pay a local old timer Valve repair guy to teach me how to build a valve pre-amp.
Since I have an expert to teach me (and correct mistakes), I want to go straight for something beyond Level 1 type kits. Im expecting it to take a two month's or more to complete.
Phono in Phase 2 (in box or in seperate 3rd box? Ideally to accomdate 3 turntables with different arms/carts)
Line stage for 8 sources
I like Interstage transformers
High gain exciting sound
Pultec EQ type tone-controls (all valve)
Mono button type feature
Remote control volume a possibility for Phase 3 if it won't compromise the design
1) Can anybody recommend a valve compliment and any designs?
2) Ive read that Pultec style EQ system is much better than that commonly found in amplifiers, and also came across this... http://www.rane.com/pdf/acceler.pdf Could this be accomplished with valves?
3) Does anyone know of a design to create a "mono" button effect. I like to use this on mono recordings which were later converted to stereo.
Audio Innovations P2 phono stage, modified to passive outboard valve regulation
Audio Innovations S1000 monoblocks (EL34 x 4 per channel ultra-linear)
VPI w/Tri-Planar and Koetsu Rosewood Signaure
Quad 2709 Electrostatic speakers
|13th August 2006, 10:45 AM||#2|
Join Date: Aug 2006
I've also been reading that many believe that a phase inverter switch is required, since 1/3 of LP's are pressed 180 out of phase. Does that really make a difference?
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