arts
Addicted Member
You are quite correct about the 6550's being a very suitable valve and as far as ARC's preference for the KT120's you are also spot on. Yep, they both produce some heat but I think the 6550's produced a little more than the KT120's.
Just curious, how much are they asking for that pair near you? You're the second person that has told me the vm220's were made in limited quantities...somewhere around a thousand is what I heard but that wasn't from ARC. Lotta glass is right, 4 octets of KT120's and 2 octets of 6N1P's, somewhere around $1,100 for a retube give or take.
View attachment 1049556
The D400mkII in the middle is used when I can't justify running the AC to cool the tubes and trannys in the summer.
They were originally listed for 4k5 for a couple of months,this ad presently marked sold as of November 1st, and have now been relisted by a different seller for 5k as of November 8th. New ''staged'' photos & talky BSA (see the AK Glossary,post#124,in General Audio Discussion for this definition) seller.Exact same part of town,and certain visual tell-tales lead me to believe these are the same amps.Probably a flipper.They do look in nice shape,but the getters are looking tired (outputs are either 6550's or KT88's),and the filter caps are originals.
As for the quantity produced,I really don't remember where I got the information,but my memory says closer to a couple of hundred pairs.
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