Mmm..looks like you know what you are doing...so I can hardly give any advice.. ;-(
Do you have a hum-pot on the filament of 300b? (AC/DC)..
Did you ground the outside of transformers/chokes/caps etc?
I use indirectly heated triodes..so I have very little hum even with AC filaments..
Do you have a hum-pot on the filament of 300b? (AC/DC)..
Did you ground the outside of transformers/chokes/caps etc?
I use indirectly heated triodes..so I have very little hum even with AC filaments..
Yes, there's a hum-balance pot on the 300B heaters.
Grounding the outsides of the trannies ? Do you mean the steel cases they're in or the transformer itself ? I use a powertransformer with a static shield and that's grounded but maybe it's a good idea to ground the cases as well... Where's my soldering iron....The cases of the capacitors share a groundplane (see picture)
Grounding the outsides of the trannies ? Do you mean the steel cases they're in or the transformer itself ? I use a powertransformer with a static shield and that's grounded but maybe it's a good idea to ground the cases as well... Where's my soldering iron....The cases of the capacitors share a groundplane (see picture)
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RED OCTALS
Tomatito,
You're spoiling yourself rotten.
Doei,
Tomatito,
5692 red bases arrive. Can't wait to hear !
You're spoiling yourself rotten.
Doei,
RED OCTOBER
Hi,
At 50USD each that is not even all that expensive.
I've seen prices at quite a bit more than that.
Trouble with stuff like this is what you're going to pay in a couple of years.
So better start saving,you're never want to go back to the regular stuff after the Red Octobers!
Oh well,
Hi,
At 50USD each that is not even all that expensive.
I've seen prices at quite a bit more than that.
Trouble with stuff like this is what you're going to pay in a couple of years.
So better start saving,you're never want to go back to the regular stuff after the Red Octobers!
Oh well,
Hello Tomatito,
Very nice indeed. Thanks for the underside pic. I am the one who emailed you earlier this month about your meter you have installed in your amp. Glad you joined this board. There, as far as I know, are two of us who are currently working on the JE labs 300b amp, Ciscokid and myself. CK is alot further along than myself. Anyway, don't hesitate to chime in when I post a question, I will need a lot of serious, thoughtful, insightful and humorus help in the very near future.
Very nice indeed. Thanks for the underside pic. I am the one who emailed you earlier this month about your meter you have installed in your amp. Glad you joined this board. There, as far as I know, are two of us who are currently working on the JE labs 300b amp, Ciscokid and myself. CK is alot further along than myself. Anyway, don't hesitate to chime in when I post a question, I will need a lot of serious, thoughtful, insightful and humorus help in the very near future.
Very good job!
I would put a copper plate over the chassis for the looks.
look at my amp.
Regarding the hum issue,do you have dc filament in the 300b?
I have a AudioNote kit one, and hum is there also. I think these babies can't live without some hum.
Is it audible when music is on? In my setup I can only hear it in the tweeters at total silence.
I would put a copper plate over the chassis for the looks.
look at my amp.
Regarding the hum issue,do you have dc filament in the 300b?
I have a AudioNote kit one, and hum is there also. I think these babies can't live without some hum.
Is it audible when music is on? In my setup I can only hear it in the tweeters at total silence.
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