Another update on the use of subminiature dual triode vacuum tubes with eight thin flexible leads in the LD amps. IMHO this approach of solderless connections should make it easy for anyone to try these type of tubes.
All you need is 1mm heat shrink tubing and 18 gauge solid copper wire + one 9 pin tube socket saver/extender and a breadboard.. A cigarette lighter can be used as a heat source for shrinking the tubing.
These little submini tubes are not visually appealing, but sound wise they can stand their own against anything we've tried, including the priciest icons. If you haven't heard one yet, give it a try. You may be in for a surprise.....
Mordy, a great tutorial! This is as easy as it gets! And now there is no excuse for anyone not to try these sub-miniatures, either the Raytheon 6832 (I also see Sylvania on eBay), or the Sylvania 7963.
IMHO the 7963 is as good as any tube I have. I would describe it as a "refined" version of the 1940's Sylvania 6SN7W. It has essentially the same sound signature - strong detailed bass, smooth silky mids and airy highs, but a bit more linear, faster, quieter.... and a lot cheaper! :)