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General Discussion / Re: Interesting Post from Audio Karma
« Last post by Mucker on April 13, 2024, 03:13:27 PM »I wonder if a positive review would have resulted in a fat juicy check for the reviewer .... LOL
Recent Posts
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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by Paul Birkeland on April 13, 2024, 06:54:19 AM »Those little yellow caps are a preventative component and even if that one was completely shorted, it would only potentially cause some noise problems on that specific input.
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General Discussion / Interesting Post from Audio Karma
« Last post by Cary on April 13, 2024, 06:00:05 AM »24
Moreplay / Re: Timothy C’s Moreplay Build
« Last post by Paul Joppa on April 12, 2024, 06:38:13 AM »Four reasons for a balance control:
1) amplifiers without feedback may vary in gain by a few dB due to varying tube parameters.
2) room acoustics may enhance one speaker's loudness over the other
3) for diagnostic purposes you may want to listen to one channel alone
4) typical volume controls can deviate from matched gain, especially at low-level settings
I'm sure there are more, these are just what comes to mind this morning.
1) amplifiers without feedback may vary in gain by a few dB due to varying tube parameters.
2) room acoustics may enhance one speaker's loudness over the other
3) for diagnostic purposes you may want to listen to one channel alone
4) typical volume controls can deviate from matched gain, especially at low-level settings
I'm sure there are more, these are just what comes to mind this morning.
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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by Karl5150 on April 12, 2024, 06:25:44 AM »They looked kind of like the yellow ceramic caps from the Eros, but yes that is what I was referring to. Again I don't know if that is a possible cause, Doc or the Pauls would know. BTW, the top plate and tranny bell finish/color look great.
Karl
Karl
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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by [email protected] on April 12, 2024, 05:09:55 AM »Hey Karl
wow, I didn´t even see that, but you are also absolutely right! Could this (broken) resistor cause the hum? You mean the little yello one on the RCA´s that has a crack? should I just replace it?
Thanks
Jens
wow, I didn´t even see that, but you are also absolutely right! Could this (broken) resistor cause the hum? You mean the little yello one on the RCA´s that has a crack? should I just replace it?
Thanks
Jens
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Moreplay / Re: Timothy C’s Moreplay Build
« Last post by timmieec on April 12, 2024, 04:37:09 AM »The input wiring section was intense!
Managed to complete it though. All the resistance and voltage values checked out so I hooked it up to my Roksan K3 amplifier and started playing music through it
Thank you everyone for the guidance throughout and helping me make my first tube amp kit a success!
May I ask what the balance knob is for? In what instances, besides DJ-ing, would one use it to make one channel louder than the other? This is the first time I've had a balance control at my disposal and it's giving me anxiety because I don't know if I've balanced it perfectly equal between left and right channels
Managed to complete it though. All the resistance and voltage values checked out so I hooked it up to my Roksan K3 amplifier and started playing music through it
Thank you everyone for the guidance throughout and helping me make my first tube amp kit a success!
May I ask what the balance knob is for? In what instances, besides DJ-ing, would one use it to make one channel louder than the other? This is the first time I've had a balance control at my disposal and it's giving me anxiety because I don't know if I've balanced it perfectly equal between left and right channels
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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by Karl5150 on April 12, 2024, 04:33:53 AM »I didn't see if this had been mentioned earlier in the thread, or know if it is related, but the cap (?) to ground on the inboard, left ch RCA input looks damaged.
Karl
Karl
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General Discussion / Re: Need help with an unusual problem
« Last post by Paul Joppa on April 11, 2024, 02:47:48 PM »I don't have a better suggestion at this point. I wish I did!
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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by [email protected] on April 11, 2024, 11:29:02 AM »Hi Paul
you were absolutly right with the H-terminals! the red wire on H3 was just cut off for some reasons? I replaced it because when I dismanteled it I cut to deep with the cutterknife. The black wire is connected, it just looks disconnected. And the twisted wire doesn´t touch the terminal, its just a bit long I guess and not very good laid. But both tubes are glowing and the music plays just as beautiful as before! I still have the grounding problem, that I mentioned in my first post. But for now I am very happy and grateful for your and Dr. B´s help!!!
thanks
Jens
you were absolutly right with the H-terminals! the red wire on H3 was just cut off for some reasons? I replaced it because when I dismanteled it I cut to deep with the cutterknife. The black wire is connected, it just looks disconnected. And the twisted wire doesn´t touch the terminal, its just a bit long I guess and not very good laid. But both tubes are glowing and the music plays just as beautiful as before! I still have the grounding problem, that I mentioned in my first post. But for now I am very happy and grateful for your and Dr. B´s help!!!
thanks
Jens