redwoodaudio
Responses from redwoodaudio
| Help me diagnose a terrible new noise from my tube amp!!! @minorl I plan to have the designer take it from here. He's a few hours away...I did same thing on both monoblocks, and only one has a problem. I carefully compared the work just now and couldn't find any meaningful differences. But I'm a complete... | |
| Help me diagnose a terrible new noise from my tube amp!!! Interesting. Amp's designer told me to replace 0.22 caps with 0.1, so they're actually smaller value, unless there's a decimal point mixup somewhere. | |
| Help me diagnose a terrible new noise from my tube amp!!! Or alternately, from geofex.com:Sound cuts out or squawks on loud notesFailing coupling capacitorFailing plate resistor, cathode bypass cap, cathode resistor or grid resistorIntermittent ultrasonic oscillationThis is why there are professionals… | |
| Help me diagnose a terrible new noise from my tube amp!!! Or, from same thread:Motorboating can be caused by having resistors of too low a value in the B+ supply. I.e. if you have a 1K5 between two preamp stages’ filter caps, you may get motorboating that could go away if that R was increased to 10K. It ... | |
| Help me diagnose a terrible new noise from my tube amp!!! So I think this is “motorboating”, but damned if I know what that means technically. Fortunately, there is the internet…from a 2008 post on ampgarage.com:This is from the Tube Amplifier Debugging Page: http://www.geofex.com/ampdbug/ampdebug.htm"I... | |
| Help me diagnose a terrible new noise from my tube amp!!! @atmasphere thank you. i may direct message you with a follow-up question. | |
| One box do it all Entry level naim uniti? | |
| Help me diagnose a terrible new noise from my tube amp!!! @fiesta75 - I'll be bringing it to a local tech tomorrow, then designer in San Jose next week if we can't solve it here. | |
| Help me diagnose a terrible new noise from my tube amp!!! @pauly thank you for the advice | |
| Help me diagnose a terrible new noise from my tube amp!!! That's what I was afraid of. I'll hopefully be in touch with the designer soon. | |
| DAC Shootout Starts This Weekend I think a tube dac like a lampizator should be represented too, for extra spice. Have access to one of those? | |
| DAC Shootout Starts This Weekend Interesting and useful exercise. Looking forward to your report. | |
| Full range speaker for rogue 90 or 100 wpc amp. DALI floorstanders? | |
| Your favorite KT 150 based amplifier? @daveyf - do you own it?The new Jadis Mk 2 amps that utilize KT150's are superb. | |
| Your favorite KT 150 based amplifier? Anybody else want to weigh in? There are more and more of these kt150 amps out there now. |