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  #4841  
Old 08-15-2018, 08:44 PM
Breakdown7 Breakdown7 is online now
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Did some listening today do different rectifiers in my SEP FireBottle, and have found that with KT-88's, I like my old Blackburn Mullard 5AR4 best with my speakers (Green Mountain Audio Chroma HX).

Next I plan to try some 6L6GC RCA black plate tubes. Anyone know which rectifier would be best suited to start with? I was thinking a 5U4?... I assume the 5AR4 would be too much voltage drop for the 6L6GC tubes, but that's an ignorant guess. What do you guys run for rectifiers with 6L6GC's?

Thanks again for all the help and suggestions! I really enjoy this forum.
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  #4842  
Old 08-15-2018, 09:48 PM
Musica Amantem Musica Amantem is online now
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Originally Posted by Breakdown7 View Post
Did some listening today do different rectifiers in my SEP FireBottle, and have found that with KT-88's, I like my old Blackburn Mullard 5AR4 best with my speakers (Green Mountain Audio Chroma HX).

Next I plan to try some 6L6GC RCA black plate tubes. Anyone know which rectifier would be best suited to start with? I was thinking a 5U4?... I assume the 5AR4 would be too much voltage drop for the 6L6GC tubes, but that's an ignorant guess. What do you guys run for rectifiers with 6L6GC's?

Thanks again for all the help and suggestions! I really enjoy this forum.
You can never go wrong with 274 (A or B, depending on your socket configuration). IMHO, it is the most versatile of them all and sounds great, especially with output tubes smaller than KT88's (i.e., ideal for 6L6 or 6p3se, and smaller ones like the 6V6 GT). Sophia Electric Mesh Plate is highly recommended. YMMV.
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  #4843  
Old 08-17-2018, 07:16 AM
FloridaBoy FloridaBoy is online now
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A multitude of post's have been mayflies, fluttering for barely a day or two, yet Dennis stands triumphant in the front rank for decades. I've just gotta have some Had amp action myself now.
There is a used amp and LP3a preamp from the same seller, not me, on the auction site for a very good price.
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  #4844  
Old 08-17-2018, 10:15 AM
Breakdown7 Breakdown7 is online now
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Originally Posted by Musica Amantem View Post
You can never go wrong with 274 (A or B, depending on your socket configuration). IMHO, it is the most versatile of them all and sounds great, especially with output tubes smaller than KT88's (i.e., ideal for 6L6 or 6p3se, and smaller ones like the 6V6 GT). Sophia Electric Mesh Plate is highly recommended. YMMV.
Thanks so much. I have an NOS Tung-Sol 274B put away that I need to dig up. Those Sophia Mesh Plates look so nice aesthetically...one of those is in my future at some point. I'd like to run one of those Sophia 274B Mesh plates in the back of my PSE. It would look good back there. Beings its an IIPS edition, I don't think the rectifiers matter much at all in the circuit, from what I understand.
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  #4845  
Old 08-17-2018, 11:51 AM
Musica Amantem Musica Amantem is online now
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Beings its an IIPS edition, I don't think the rectifiers matter much at all in the circuit, from what I understand.
Sure, I was just answering your original question based on my own experience.
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  #4846  
Old 08-17-2018, 04:04 PM
Breakdown7 Breakdown7 is online now
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Originally Posted by Musica Amantem View Post
Sure, I was just answering your original question based on my own experience.
Yes, I realized that and very much appreciate it. I'm having fun listening to all these different tubes. Just didn't want to cause any damage to my FireBottle or PSE by running the wrong rectifier with certain output tubes. You guys have all been so helpful.
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  #4847  
Old 08-17-2018, 06:30 PM
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BearCityUSA BearCityUSA is online now
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Originally Posted by Breakdown7 View Post
Yes, I realized that and very much appreciate it. I'm having fun listening to all these different tubes. Just didn't want to cause any damage to my FireBottle or PSE by running the wrong rectifier with certain output tubes. You guys have all been so helpful.


Stick with direct heated Rectifiers in your PSE (or any amp with IIPS and ss rectification). Indirect will not hurt but it does raise the noise floor per Dennis.
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  #4848  
Old 08-17-2018, 07:45 PM
Breakdown7 Breakdown7 is online now
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Stick with direct heated Rectifiers in your PSE (or any amp with IIPS and ss rectification). Indirect will not hurt but it does raise the noise floor per Dennis.
Thank you for mentioning this. I did not realize this was Dennis' recommendation. Although I've never tried any rectifier that wasn't a direct heated design in that amp.
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