smeggy
Member of the Trade: ThunderpantsTP1
- Joined
- Feb 9, 2004
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Heh, it just needs that teeny bit more power...
Honest
Honest
Originally Posted by smeggy /img/forum/go_quote.gif Heh, it just needs that teeny bit more power... Honest |
Originally Posted by Bleuburd /img/forum/go_quote.gif No ideas on why volume is so low? The pot is maxed out and I can barely hear a faint sound. |
Originally Posted by Logistic /img/forum/go_quote.gif Do you have cathode bypass caps in your amp? Adding those will give you more gain. |
Originally Posted by smeggy /img/forum/go_quote.gif I have no idea what a cathode bypass cap does or where it goes. I just followed the standard circuit design. Looking at the diagram.. I'm thinking maybe the caps would run parallel to R5 and R11, the 2k resistors? I know nothing of electronics so this is a wild guess based on some other diagram I just looked at with bypass caps. |
Originally Posted by zkool448 /img/forum/go_quote.gif Yes, I think it's C7 & C8 (new BOM), have a look at this 'revised' schematic I did from a previous post. |
Originally Posted by Swingtops /img/forum/go_quote.gif hey guys I am having a problem with getting my amp to work, nearest I can tell the inputs and outputs are wired correctly, the signal is getting to the tubes but I have no sound whatsoever coming out of the headphones. No buzzing clicking - nothing. I have had a few people look over the schematic and we think that everything is in the right places, I did have a blown mosfet to start out with that is now replaced. All the DC voltages that are listed on the schematic match within about .2 v. The mosfets seem to be getting pretty hot but no sound. |
Originally Posted by smeggy /img/forum/go_quote.gif Thanks! did this ever get verified by anyone? |
Originally Posted by smeggy /img/forum/go_quote.gif Thanks! did this ever get verified by anyone? |
Originally Posted by smeggy /img/forum/go_quote.gif I have no idea what a cathode bypass cap does or where it goes. I just followed the standard circuit design. Looking at the diagram.. I'm thinking maybe the caps would run parallel to R5 and R11, the 2k resistors? I know nothing of electronics so this is a wild guess based on some other diagram I just looked at with bypass caps. |
Originally Posted by Logistic /img/forum/go_quote.gif Yes that is correct. It will give you quite a bit more gain, maybe more than you need or want. |
Originally Posted by smeggy /img/forum/go_quote.gif Heh, maybe some of this stuff is sinking in after all we'll see how it goes. If I decide not to go the full hog re: the new layout, is the 220uF 16V specified there still applicable? |