John Doty wrote: > On May 22, 2009, at 10:47 AM, Joerg wrote: > >> As for tubes I found that HV-driver tubes for color TVs were the best >> deal. But this was decades ago, today you'd have to take a look at >> which >> current production tubes are available and at what cost. Sovtek, >> Svetlana and so on. > > Still lots of old TV tubes around: repair shops kept large stocks > around, and dealers grabbed them for pennies on the dollar as the > shops closed up when the tube era ended. If you want to build tube > stuff from scratch http://tubesandmore.com/ has lots of stuff: old > tubes, current tubes, sockets, transformers, ... >
Thanks. There are many tube places and prices (or the mark-ups) seem to vary widely. One shop has a certain tube for cheap, but another is a lot better in price for a different tube. These guys even have Chinese 6146 for 20 bucks: http://www.tubedepot.com/index.html But I haven't shopped there yet and also I prefer the mil version with graphite plates, with some luck those can be had for around $30. Then there is stuff you'd be hard-pressed to do with semiconductors, like HV-switching. The GP-5 triode can avoid the white-knuckle ride of a FET-stack and I've seen it for $5 at a few places: http://tubes-store.com/product_info.php?products_id=58 > In Japan, Tokyu Hands (a division of the Tokyu department store > chain) sells tube amplifier kits. > The dream of any electronics engineer, one whole day for an extended stroll through Akihabara, and no budget limits :-) -- Regards, Joerg http://www.analogconsultants.com/ _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
