Photos
Status: left channel only producing sound because of issue that burned the right channel led which components might have been affected?
Hum is still there more like a loud noise and can be heard even with the amplifier off, still louder when amp is on, thru loudspeakers. Checked power supply and is ok. Shall appreciate any ideas. Thanks.
N
Status: left channel only producing sound because of issue that burned the right channel led which components might have been affected?
Hum is still there more like a loud noise and can be heard even with the amplifier off, still louder when amp is on, thru loudspeakers. Checked power supply and is ok. Shall appreciate any ideas. Thanks.
N
Attachments
Well, it’s working. No hum or noise. I have it connected to my F4, no gain issues, volume control is at 3 o'clock with my 94 db efficient Spatial M4’s TM.
Soundstage is enormous and very dimensional. Even with only 30 minutes on, I do not
hear any sort of analytical artifacts very smooth and musical. The issue was one of grounding. I will redress the wiring with better wire and do it more neatly. The wiring I had on hand and used is too rigid.
Soundstage is enormous and very dimensional. Even with only 30 minutes on, I do not
hear any sort of analytical artifacts very smooth and musical. The issue was one of grounding. I will redress the wiring with better wire and do it more neatly. The wiring I had on hand and used is too rigid.
mouser bom:
Mouser Electronics, Inc. Europe
note R15/30 has changed to 47k
no build guide yet, but its painting by numbers
cheers A.
Mouser Electronics, Inc. Europe
note R15/30 has changed to 47k
no build guide yet, but its painting by numbers
cheers A.
Hello,
Got me some boards from the store for this winging it to me and i was wondering would a 25k alps pot be suitable for volume control for this ?
Thanks
That's what I used, 25k ladder pot from ebay.
Russellc
Larry - yes, the guide is forthcoming. I’m actually working on a very simple version right now, but the guide will cover more than one way to do it. But don’t wait for it (since I’ll be assembling it version by version slowly...)
It really is a paint by numbers project, build a PSU, wire the chassis inputs and outputs, stuff the board, attach it all together, adjust offset, done.
It really is a paint by numbers project, build a PSU, wire the chassis inputs and outputs, stuff the board, attach it all together, adjust offset, done.
Quick little project using up some parts and pieces laying around. (The benefits of a well-stocked parts closet.)
Mean Well has a small selection of bipolar PSU bricks, this one is +/-15v (and also has +5v that will be unused for now) and I'm greatly looking forward to trying it. GP25A14E-R1B EDIT: I'm not having good luck with this PSU. Hold off from buying this for the time being.
Build will be the 'large outputs' version since I have an headphone jack to use up.
More photos as I progress.
Mean Well has a small selection of bipolar PSU bricks, this one is +/-15v (and also has +5v that will be unused for now) and I'm greatly looking forward to trying it. GP25A14E-R1B EDIT: I'm not having good luck with this PSU. Hold off from buying this for the time being.
Build will be the 'large outputs' version since I have an headphone jack to use up.
More photos as I progress.
Attachments
Last edited:
- Home
- Amplifiers
- Pass Labs
- Wayne's BA 2018 linestage