yup. Like i said, ZM and Salas had to nurse me through the change from SS to tube and i did not like my efforts. I bought Lundahl chokes and another power transformer for this go around and will probably increase capacitance as well. After seeing what Stajo went through, I definitely am not confident in my results, but I must admit i am intrigued by Bas' SS/damper diode combo. I will try both just as soon as i can get some breathing room. Beautiful bottles are just sitting there waiting to play music.
there are some 100uF Obbligato golds for sell that I am thingking about. About brightness, It is not something I want to clean up, as I dont feel it added anything, but i do not want to speak of it too much until i can confirm that I have a nice clean rail like Stajo ended up with. If it remains then, it is gone. I am not a purist.
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Well. Its just because I'm stupid enough to look behind the curtains. Just build like Salas and you will be happy.🙂
Probably not. I've tuned the Z565s with small caps, but atm I have a small motorboating 😎 so its not measurable at all. But its listenable. I went of from attached and did some tuning. I like it very much.
I should probably not say this but we actually toned it down by putting some glob on the back side of the titanium driver membranes. It helped but not enough so we changed to alu. Titaniums are headache. Also pushed up low mid with a zobel over bass +/-
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You got to sort out the amp stable and passing a smooth HF square. Now you have the TDS 340 to help you.
Yes. I was planning to rebuild it but I havent got around it yet. Right now its in some reused chassie with a completely oversized tranny.
About the 6V6 I'm beginning to think that dual SSHVs might be a stupid overkill in anode follower version. It just adds complexity to next to no benefit. I might go with one instead. Whats your opinion?
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They usually add a bit of spaciousness when double but you got to listen for yourself VS single and decide.
Regarding the amp see about screen stoppers also.
Regarding the amp see about screen stoppers also.
Stajo,
you could also have a look at the baby huey thread regarding your power amp.
Maybe you will find there interesting ideas before you start to rebuilt yours.
you could also have a look at the baby huey thread regarding your power amp.
Maybe you will find there interesting ideas before you start to rebuilt yours.
I cant remember if I have them or not. I have hesitated on putting on the table cause I would probably start to completely rebuild it. But now I have a scope as you say.
Some 100-220 carbons might be a start.
The stupid motorboating just showed up one day. It comes after some playing and doesnt show up without signal in. Its on some half Hz or so and affects the stereo positioning a bit when listening. It goes away if I testchange to ECC81s.
Some 100-220 carbons might be a start.
The stupid motorboating just showed up one day. It comes after some playing and doesnt show up without signal in. Its on some half Hz or so and affects the stereo positioning a bit when listening. It goes away if I testchange to ECC81s.
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Both BH and RLD is planned. I got the gear but not the time (I use it to putting glob on membranes and other fancy stuff😀).
It shouldn t be too difficult, as you have the chassis with the tubes ready.
I think you are going to like the BH.
This is the very reason i doubt my experience. I am thankful for the curtain peaking and all the help provided. Really a wealth of info on PSU testing and tweaking.
Well it wasnt the G2s, 150R carbons in the hornets nest and still 'boating. Search goes on.
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To not glob this thread down further then I have already I putted up a new thread for the PP. Please go there and make silly advices😉
http://www.diyaudio.com/forums/tubes-valves/236527-iso-motorboat.html
http://www.diyaudio.com/forums/tubes-valves/236527-iso-motorboat.html
That 100uF 6V could be doing something along with the 0.1uF couplers and the OPT turning the phase at the same point is another suspicion. Some value changes test in those caps maybe.
I have a 1 k on both halves. I have tried to increase the cathode caps by adding a 470 on the 47 as Artosalo suggested in other thread. Still boating. I just soldered in 2k2s on GNFs but my son wanted some friday movie evening so I didnt have time to test. Later maybe. Thanks.