jamato8
Headphoneus Supremus
The attenuator adds the extra bit of refinement and transparency and so do the caps. Hard to say but I guess a slight edge to the caps.
Originally Posted by WittyzTH /img/forum/go_quote.gif Is that really hard to try to mod the amp? I'm completely noobie for DIY, but this thread really drive me crazy of modding the WA6. |
Originally Posted by WittyzTH /img/forum/go_quote.gif Is that really hard to try to mod the amp? |
Originally Posted by peanuthead /img/forum/go_quote.gif What's a more significant upgrade in terms of overall sound quality for the WA6: Sophia Princess rectifier or PDPS upgrade? Thanks. |
Originally Posted by takezo /img/forum/go_quote.gif hi danny, you should wait to see what's inside your stock wa6SE. the blackgates are verygood but not essential... i'd save the money and just upgrade several areas like the bypass caps (220uf/16v), bypass resistors and resistors between pins 2 and 6 with 0.5 watt carbon resistors. you can always change the values by going up but don't go down, especially with the voltage of the caps. (except the bypass where it should be fine to go to 6.3v instead of 16v. i get only 2+v thru the bypass section) for the power filter caps 150uf is insufficient imo... you may want to go parallel to get near 300uf... but that'll just add to your budget. jamato recommended panasonic as being very good filtering caps. or i'd just ask jack what he'd recommend for you to use in place of the blackgates. good luck. *the 6de7 and 6ew7 and not in high demand, which is probably why it's not seen on eebay alot... ask website tube dealers for them and more often than not, they'll have hundreds in stock for $3 to $5 each... i got most of my output tubes at vacuumtubes.net |
Originally Posted by sclamb /img/forum/go_quote.gif ...Although I am sure Jack is correct, I would like to get more opinions from the experts here before I stick a needle into the socket and risk getting what could be a fatal shock. Will Jack's suggested way drain all the current and make the sockets safe? Is there any way of testing to ensure that all the current is drained from the amp and sockets? Is this sort of tool useful/necessary to test things... |
Originally Posted by takezo /img/forum/go_quote.gif yes, it's a very safe way to make sure all the caps are drained. if you're still unsure, leave the amp off for several hours, use an electrically insulated glove or take it in to a specialist. one piece of advise: try not to twist and turn the tubes excessively when pulling them out of the socket. this is why the socket becomes loose. it's difficult, but try to pull the tube straight out with minimal twisting and gyrating. |
Originally Posted by sclamb /img/forum/go_quote.gif Thanks! I think twisting the tube a bit is what may have caused this, although the right channel socket was always looser than the left one. What does leaving the amp off for a few hours do after draining the current? Should I leave the phones connected or just leave it to sit? I suppose using something plastic or wooden (such as a toothpick) rather than something metallic would avoid shocks too. Simon |