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Old 28th May 2007, 07:11 AM   #1
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Default Advice for retubing VTL Ichiban`s

Hi all of you.

I recently bought a pair of VTl Ichiban mono amps. These are 200W triode amps using 12! EL34 / KT90 /6550C pr. channel. I bought them as projects. They have not been used for several years and needs going over with new tubes, sockets ect. Bying 24 output tubes is quite an investment so I would like to get it right the first time. These amps are only operated in tiode mode and the current in each tube is quite modest. (about 25mA)
I am considering The EH KT90, the amps were sold with EI KT90 when new. What difference in sound should i expect from these compard to svetlana 6550C in the same circuit.
I neet a base that is as tight as posible as i am driving a pair of Quadral Titan MK III transmisionline speakers. For the rest of the fq. band i like "Telefunken " sound a lot. Anny input is welcome.
Thanks - Peter Jensen, Denmark.
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Old 28th May 2007, 07:15 AM   #2
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they are probably best sounding with KT90 ;
if you need replacement (test them!) your man is probably just Jim McShane
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