audio-talk

Almost finished the power supply chassis for the 6C33C amp today.

pre65 wrote: ↑Sun Jun 28, 2020 7:02 pm Might this be a better place to discuss mortality, and how to avoid it ?

You can't avoid it Phil, the best you can do is to try and delay it.

Can I also point out Ray that for all we know the idea of bike riding as you mentioned in the letter may also be a upsetting topic for his family as they may regard that as contributory factor. Nick, I know. Mike's cycling isn't an issue for the family, in fact it's been mentioned positively a numb...

Great news about landing the job Dave and hopefully something longer-term will fall into place in the meantime.

Audio systems are for listening too, aren't they!

Can I respectfully suggest that this thread is not the place for these posts. We have lost a frend and this should be about him, not us.

Ray

steve s wrote: ↑Sat Jun 27, 2020 1:03 pm Sorry ray.. didn't mean to sound like that..

No prob Steve

I've been working on my second room heater project this morning - hooked up a couple of 120W Mean Well SMPS and powered up a pair of 6C33C filaments. I was actually a bit disappointed that I only measured a temperature of 126deg C - I was expecting higher based on the reputation of the 6C33C but the...

I was just expressing a preference, not criticising, Steve...

Give me passive cooling everyday, it's simple, it works, it's silent and there's nothing to go wrong.

pre65 wrote: ↑Sat Jun 27, 2020 12:34 am That's the thought for today (it's Sunday now)...

My, how time flies when you're having fun.

pre65 wrote: ↑Fri Jun 26, 2020 11:54 pm Yes, in general I appreciate all that, and I have at least 5 different options to think about.

I just wondered if YOU had settled on a particular way to go in that direction.

If not, don't worry.

No, not got that far with thinking about it.

I saw your post on the DIY Audio MoFo thread,,, You should keep R6 as it gives an easy way to measure your standing current - Ohms law again, handy little beggar! If you omit it you must put a link in its place otherwise your MoFo will not be connected to the power supply. Regarding the MOTs, these ...

If on the other hand you're asking about the sizing of the heatsinks, you need to be more specific as the amount of heat to be dissipated will depend on your power supply voltage and what standing current you'll be using. If you read Michael Rothacher's original document he tells you his recommendat...

pre65 wrote: ↑Fri Jun 26, 2020 10:07 pm Just out of interest Ray, what were your thoughts on the heatsinks ?

They're essential Phil!

I have been in touch with Gwenda, Mike's wife and passed on our condolences. I was going to send her a link to this thread so she could see how well regarded Mike was here but on reflection I decided not too as I thought some of the posts might be upsetting for her. Instead I cut and pasted excerpts...