audio-talk

Think we can agree those aren't very nice then!

Is vintage silver mica good? Good question. I bought some big Russian silver mica caps years ago when Russian caps were still dirt cheap on ebay. The only time I found a use for them was in a high pass filter in front of the 45SET I'm using now and they were pretty horrid, the sound seemed broken s...

Impressive Ray, looks like a commercial unit.

I can't remember, did you use Front Panel Express to 3D print the front cover?

Nuts. Or rather great!

Cressy Snr wrote: ↑Sat Mar 30, 2024 11:10 am You knew I wouldn’t be able to resist didn’t you!

And could you hear any difference? I'm guessing not as you didn't comment?

Happy 70th Mike! Hope you've had a good day.

Cressy Snr wrote: ↑Fri Mar 29, 2024 8:44 pm Good job I like messing about.

Very odd things happening Steve, good you've sorted it.

I don't think I'd be able to resist trying the 80uF after the stacked lytics, to see if it sounds better than the electrolytics as the last cap in the audio circuit.

Paul Barker wrote: ↑Sun Mar 24, 2024 10:45 am Unless youre happy with Quad 57’s which I am.

Absolutely. DIY audio, particularly, is a deeply personal thing with lots of compromises.

Indeed Paul.

I wouldn't use MoFo over 45s if I had just one choice. But I use 45s for mid and treble, MoFo for bass and class D for sub. Seems to be the best of all worlds. So far.

I was surprised how close the MoFo sounded to the SET. The 45s have a bit more tone for me, triode love as Andrew L used to describe it, but the MoFo is nice and clean in the bass.

I agree with a lot of that Nick, particularly the Land Rover :-). I've ended up with a 45SE direct coupled to 96dB widebands above 300Hz, a MoFo direct coupled to 18" 96dB bass drivers, and a class D amp with subs. Really works for me. The crazy bit is the relative costs of the amps. It's diffi...

I've also been playing with another all-in-one PCB for the phono itself in KiCAD, but I've done a few layouts and I'm not really very happy with any of them. And there's a risk I make it worse. So I've drafted a smaller version of the RIAA filter board back in Eagle, hoping this might improve the sm...

For power I was going to use 9V batteries, but I think I'll go with 4 no. 4R25 6V torch batteries. They should last for a very long time and allows me to use +12V and -12V for the TubeCAD, and +12V up to +24V for the Boozehound. I'm still thinking about how I'll implement this, but I'm thinking a bo...

I've done a great deal of prevaricating with this. I've been back and forth with single and parallel versions of PCBs for the Boozehound, even considered just building it point to point on perf board. Anyway I'm going to get a parallel version fabbed which I can use as a single first, then add a sec...