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MHDT Orchid TUBE ROLLING

Interested in hearing about tube rolling experiences with the Orchid and other MHDT dacs, namely, the specific comparative sonic characteristics of the various 396a, 5670 and other compatible tubes used in the output buffer. My only experience is with the WE396a that Linear Tube Audio installed in my new Orchid.
pmboyd
pmboyd OP
391 posts
 
But not just any 6922. The early Siemens is sublime.
pmboyd OP
391 posts
 
Best 5670 to 6922 tube adapter is made by Garage 1217 (garage1217.com).  Superior to every other adapter that I have seen. However, please note: the pin holes are tight and therefore the tube pins must be straight in order to facilitate placement. 
gelle
79 posts
 
@pmboyd   do you have a link to a Siemens 6922? Thanks. 
pmboyd OP
391 posts
 
gelle... Siemens made valves are from German and the European 6922 (American designation) equivalent is the e88cc. Many tube dealers, such as Brent Jessee, carry them. Top of the Siemens line is the CCa, followed by the e188cc (American 7308), the e88cc and the ecc88. Does that answer your question?
pmboyd OP
391 posts
 
PS, Generally speaking, the earlier production Siemens valves -- like many other brands -- are superior to the later production.
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