What have you built lately?

[Wavebourn]

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.

 

[phase]

Wow, a lot going on in there^. Cool that it’s 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.

 

[nigelwright7557]

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.

 

[vdi_nenna]

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.

 

[soundbrigade]

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.

 

[chrisb]

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.

 

[Mrcloc]

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.

 

[Mrcloc]

And now after a few weeks (I should actually say months), I have completed this (the carport).

An externally hosted image should be here but it was not working when we last tested it.

 

[Cal Weldon]

48" Cornucopya's.

 

[Mrcloc]

That's pretty cool, but WAF is about 0.

 

[globalplayer]

4th order BP using Kenwood KFC-PS3016W.

 

[TheGimp]

Mrcloc, you can cover them to make art deco works of them. It is possible to make them into quite pleasing wall coverings.

 

[Mrcloc]

Mrcloc, you can cover them to make art deco works of them. It is possible to make them into quite pleasing wall coverings.

I know, but not in my house.

 

[chrisb]

That's pretty cool, but WAF is about 0.

If you're referring to Cal's latest Cornus - I'm guessing you've not met his wife