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Never know. I understand he will have a some in a few weeks. |
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Dennis is crazed with vacuum tubes ... Ham Radio and Hi Fi! 🤪 He also mentioned that there is a special introductory price for the CJ5 for ‘Inspire Family Members’. You’ll have to inquire direct with him though. |
I wanted to update everyone on the hum issues I was noticing with my Fire Bottle KT88 amp:
Dennis was kind enough to request I send the amp back to him for a full look over. After double-checking everything he determined that it was nothing more than a noisy NOS 6SL7 driver tube. He returned the amp with a Tung-Sol SL7 and the amp is dead quiet! Needless to say I am more than happy with the result. Dennis was very accommodating and understanding of my concerns. Top tier service all around! Now I need to see what the CJ5 will cost so I can complete the Inspire two fer! |
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The last time I checked the CJ5 tube configuration that Dennis was recommending is 6C5 in the input stage and 6J5 in the buffer stage.
Rectifier is 5Y3 or 5U4 |
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I just looked close at the picts of a unit Dennis shipped recently. I posted a shot of the front here on Halloween. Same as you describe except he had a 5AR4 in the rectifier slot. |
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It’s the same unit as in the shot with the ham radio gear. |
I haven't seen that picture bearcity, but It doesn't really matter what rectifier you use because the B+ is regulated.
You should try them all and see what you prefer sonically. |
https://i.imgur.com/TxbQqDX.jpg
Was curious about SS rectifiers, so I got some :) Tube Depot Diodes = sucks. Lifeless sound, closed in stage, diminished transients and detail 5018 = Decent, neutral to tilted slightly warm, a big step above Depot SS 5019 = Really warm and thick. Still better than Depot SS, but behind 5018. All of these are a few tiers below even my worst tube rectifiers. One common factor for all the SS is a massive diminishing of stage presence, width, depth, realism, air. #1 I'm not sure how using a tube socketed SS device compares to a (built to purpose) regular SS supply. I can say tho, when applying SS rectifiers to what is designed to be a tube PSU, they do not perform well. #2 If you have a tube PSU, you can confidently never think about getting an SS tube replacement. Performance isn't there even over a $25 Sovtek gz34. Does make me think about this phrase I've heard thrown around, "It's not a real tube amp without a tube rectifier". |
I’ve been out of the loop for a while, but I like what I’m seeing come out of the toy shop...CJ5!
I’ve got the tube bug again. I have an original 6V6er amp driven by an LP.2. My current favourite driver tube is my Phillips holland 6sn7gt. And my hungry speaker enjoy the drive of the EI KT90’s. I have been looking at the shuguang WE6SN7 Plus tubes as well as the WE KT88 Plus tubes... Has anyone experienced these in an inspire? I have the CV181-T and find its soundstage flat and 2D. But other Chinese tubes like the sophia 274 mesh plate and the TJ full music 6SL7 I have quite liked. Just a little weary to spend good money on Chinese tubes Without knowledge for how they fare in inpire amps. Thoughts? Cheers |
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