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Old 10th January 2014, 09:06 AM   #831
bkevin is offline bkevin  United Kingdom
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Default Kudos!

Quote:
Originally Posted by Harry3 View Post
OS not only are you a great amp designer but you’re willing to assist others.
Big thanks from all of us who appreciate your work!
Just want to jump in and 2nd that.
I finished my HB build about 8 months ago now but still follow this thread to see what others are up to. My Honeybadger gets used for several hours most days, often at a slightly obscene volume levels and for a wide variety of music from classical through to jazz, blues and rock. I gotta say it rocks! Brilliant clarity, low end grunt and that wonderful, airy soundstage. It never ceases to put a grin on my face! Kudos to Ostripper!
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Old 27th January 2014, 12:09 AM   #832
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Can someone confirm that 0V and IN on the lower right side of the board is my RCA input from pre-amp and OUTPUT and SPK/GND is the output for the speaker? I've gone through the build and setup of R17/R7/R30, everything looks correct, yet I only hear very faint sound from my speaker if I turn the pre-amp to nearly full volume.
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Old 27th January 2014, 02:34 AM   #833
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Quote:
Originally Posted by bigkraig View Post
Can someone confirm that 0V and IN on the lower right side of the board is my RCA input from pre-amp and OUTPUT and SPK/GND is the output for the speaker? I've gone through the build and setup of R17/R7/R30, everything looks correct, yet I only hear very faint sound from my speaker if I turn the pre-amp to nearly full volume.
Confirmed !

"everything looks correct" ? 7-8 V across R14 ? 0V at output ?
30mv (or close) between TP 1/2 (or...15mv between tp1/2 and 0V)?

Photo's + more details = more ideas to come to a resolution.

OS
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Old 27th January 2014, 02:49 AM   #834
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Last edited by bigkraig; 27th January 2014 at 02:52 AM. Reason: dupe
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Old 27th January 2014, 02:52 AM   #835
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Quote:
Originally Posted by ostripper View Post
Confirmed !

"everything looks correct" ? 7-8 V across R14 ? 0V at output ?
30mv (or close) between TP 1/2 (or...15mv between tp1/2 and 0V)?

Photo's + more details = more ideas to come to a resolution.

OS
yes, yes, and yes..

please excuse my solution to not having the right size fuses, they are 4A 250V..

Click the image to open in full size.
Click the image to open in full size.

i've also checked for any shorting on Q13-21, all good. i have nylon bushings in the mail but that keratherm sheet is doing its job
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Old 27th January 2014, 02:57 AM   #836
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Quote:
Originally Posted by ostripper View Post
Confirmed !

"everything looks correct" ? 7-8 V across R14 ? 0V at output ?
30mv (or close) between TP 1/2 (or...15mv between tp1/2 and 0V)?

Photo's + more details = more ideas to come to a resolution.

OS
specifically, 8.24v on r14, 0.01-2mv or so at output, 28-30mv (depending on temp) between TP 1/2
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Old 27th January 2014, 03:01 AM   #837
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Make sure hot and ground aren't reversed on the RCAs. Did that once it drove me nuts searching.
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Old 27th January 2014, 03:06 AM   #838
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Originally Posted by BobEllis View Post
Make sure hot and ground aren't reversed on the RCAs. Did that once it drove me nuts searching.
Just tried turning it around, made no difference. Maybe I need to ground my boards better?
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Old 27th January 2014, 03:11 AM   #839
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Disconnect input .....
Touch "in" with your finger - is there loud hum ?

If you are using a large capacitor, is the jumper NEXT to C1 bridged ?


OS
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Old 27th January 2014, 03:18 AM   #840
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Quote:
Originally Posted by ostripper View Post
Disconnect input .....
Touch "in" with your finger - is there loud hum ?

If you are using a large capacitor, is the jumper NEXT to C1 bridged ?


OS
I get some static and some hum if I touch the input. the jumper isn't bridged, so it looks like my cap isn't wired up!

can i hook this up and get going or will I need to go over all of the other trimmers again?

Last edited by bigkraig; 27th January 2014 at 03:21 AM.
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