The parts quality is very good, the documentation is truly excellent, the bottlehead forums provide fantastic peertopeer assistance, and construction is very easy. I tried the very popular tungsol 6as7g and the rare gec 6as7g brown base in. Little hours on all four tubes, as well as the crack itself. A tung sol 5998 output tube got a deal, they are expensive with bin on ebay and a 1952 6sn7gta chrome dome tube with a garage1217 adapter. Hi all, as an avid tube roller and owner of a bottlehead crack speedball.
I bought a tung sol 7236 on ebay after looking for a decent priced 5998. Jordan retro,jordan retro 11,599873003 air jordan 1 retro 89 black fire red cement grey,get discount price and best deal on the latest styles of products. I just sold my hd600dt990 for an hd700 but havent opened and used it yet im home for winter break. Jordan 1 retro 89 black 599873003 following the whitecement greyblack version we saw last month. Its probably a long shot that anybody has used the 7236 but ive read that it sounds similar to the 5998. Sold bottlehead crack w speedball and attenuator upgrade and. So i convinced my roommate to pair his hd650s with a bottlehead crack, but he cant afford the speedball upgrade right now, so hell be saving up for it. Atticushd650ssotl1967 telefunken smooth 12au71965 tung sol 2 points 3 years ago edited 3 years ago.
I really cant find any consensus regarding the ultimate input tube. Some tubes labeled 2399 may also be exactly the same no complete consensus on this. A 12au7 input tube serving as a voltage amplifier, directly coupled to a 6080 power tube as a cathode follower output. Upgrading the bottlehead crack headphone amplifier. Tube rolling with the bottlehead crack general dacampdap. The bottlehead crack is an outstanding first project for the novice audio diyer.
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