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Old 26th January 2018, 11:38 PM   #21
Wavebourn is online now Wavebourn  United States
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Location: Pleasant Hill, CA
What have you built lately?
Testing new power supply. No hum at all audible when all faders are up on +10 dB, headphone amp all the way up. Only noises from microphone preamps. Oscilloscope on 5mV/div shows no ripples at all.
I am satisfied. Time to mount the PS. New holes have to be drilled, it is thicker now, so old holes do not fit. However, one wire had to be soldered outside, I forgot about +42V anode power for UV meters.
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Old 5th February 2018, 11:46 PM   #22
phase is offline phase  United States
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Wow, a lot going on in there^. Cool that itís working nicely with any unexpected hiccups.

I have been entertaining myself hotrodding an old bgw 250 amplifier, sounds nice now with better decoupling, and ditching the funky caps in the signal path for better quality parts.
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Old 5th February 2018, 11:54 PM   #23
nigelwright7557 is offline nigelwright7557  United Kingdom
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Location: Carlisle, England
Been working on triac controlled soft start unit for an amplifier up to 2000Watts.
Been working on a TDA7294/12au7 amplifier module.
Been working on a USB scope for windows pc.
Been working on USB LC meter for windows pc.
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Old 6th February 2018, 12:42 AM   #24
vdi_nenna is offline vdi_nenna  United States
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Location: PA, USA
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Some interesting projects here.

Just working on a couple of things.
Amp cases for MoFo Power Follower.
Was making a prototype for a balanced power unit.
Decided to not pursue the venture.

Just remembered I need a high gain preamp for the MoFo.
Red boards in the background are for a BA-3 frontend.
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File Type: jpg MoFoCase_00.jpg (579.3 KB, 142 views)
File Type: jpg BPU_00.jpg (729.3 KB, 138 views)
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Last edited by vdi_nenna; 6th February 2018 at 12:48 AM. Reason: More info
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Old 6th February 2018, 06:41 AM   #25
soundbrigade is offline soundbrigade  Sweden
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Soldered all pieces together and have (almost) finished a Noise Toaster from MFOS.

Also, got a TPA3116 installed in my favourite plastic boxes.

The amp works great, but the microsynth has to be debugged.
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File Type: jpg IMG_4769.jpg (116.8 KB, 124 views)
File Type: jpg IMG_4776.jpg (114.2 KB, 123 views)
File Type: jpg IMG_4759.jpg (73.5 KB, 41 views)
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Old 6th February 2018, 11:00 PM   #26
chrisb is offline chrisb
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Join Date: Aug 2002
Location: victoria BC
Wooden sleeve for a vintage Fisher 202T tuner-pre rescued from an old console.

Tight fit - not a lot of overlap on the front panel to achieve any fancy bevel detailing, so just went simple. QC Sapele veneer on BB ply.

and yes, I definitely subscribe to the "tidy workbench is a sure sign of OCD" philosophy - although whenever I do clean up, I find a couple of extra Olfa knives and tape measures.
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File Type: jpg IMG_1734.JPG (414.6 KB, 40 views)
File Type: jpg IMG_1733.JPG (525.7 KB, 45 views)
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Last edited by chrisb; 6th February 2018 at 11:19 PM.
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Old 11th February 2018, 09:44 AM   #27
Mrcloc is offline Mrcloc  South Africa
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Location: Pretoria
Got a bass guitar, so I built a little 45W 4x6". Two are in a small 4th order bandpass, isobaric, and two provide the mids. Sounds quite nice. I used bits and pieces I already had. I only put together a small 10x gain preamp buffer extra.
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File Type: jpg WP_20180211_10_29_57_Pro (2).jpg (840.5 KB, 34 views)
File Type: jpg WP_20180211_10_29_25_Pro (2).jpg (677.0 KB, 30 views)
File Type: jpg WP_20180211_12_32_33_Pro (2).jpg (522.3 KB, 31 views)
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Old 25th February 2018, 12:32 PM   #28
Mrcloc is offline Mrcloc  South Africa
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And now after a few weeks (I should actually say months), I have completed this (the carport).

Click the image to open in full size.
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Old 25th February 2018, 04:27 PM   #29
Cal Weldon is offline Cal Weldon  Canada
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Location: Near Vancouver
What have you built lately?
48" Cornucopya's.
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File Type: jpg IMG_1092.jpg (143.8 KB, 34 views)
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Old 26th February 2018, 06:37 AM   #30
Mrcloc is offline Mrcloc  South Africa
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That's pretty cool, but WAF is about 0.
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