Search found 2525 matches

by Ray P
Wed Dec 12, 2018 8:46 am
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 10041
Views: 584422

Re: Nothing In Particular

pre65 wrote:
Wed Dec 12, 2018 7:41 am
Model railways really don't do it for me, I prefer the real thing.
Ah! Just assumed...
by Ray P
Wed Dec 12, 2018 5:56 am
Forum: Everyones Projects
Topic: Remember These?
Replies: 192
Views: 3497

Re: Remember These?

Don't forget that the different values of the output caps you're experimenting with will be changing the -3dB rolloff point at the bottom end, which might be affecting the results you're hearing.
by Ray P
Wed Dec 12, 2018 5:46 am
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 10041
Views: 584422

Re: Nothing In Particular

Phil, have you been along to this place?

https://www.bbc.co.uk/news/av/uk-englan ... he-country
by Ray P
Mon Dec 10, 2018 10:00 pm
Forum: Assorted Stuff
Topic: The Audio-Talk Cycling thread.
Replies: 1740
Views: 106430

Re: The Audio-Talk Cycling thread.

With a bit of luck Santa's going to get one of these down the chimney in a couple of weeks;

http://www.wiggle.co.uk/vitus-zx1-aero- ... -bike-105/

I filled in the paperwork to get one on the Cycle Scheme through work today so I'll save around 30% on the already significantly discounted cost.
by Ray P
Mon Dec 10, 2018 9:53 pm
Forum: Assorted Stuff
Topic: Owston meet 2019 >1&2 June
Replies: 26
Views: 1229

Re: Owston meet 2019 >1&2 June

I'm thinking it could be a real treat with some of the projects ongoing, like Steve's OTL amp coupled to his Fane speakers. Looking forward to it.
by Ray P
Mon Dec 10, 2018 9:45 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 11
Views: 162

Re: The Other 13E1 SE-OTL

I think I'll do the obvious thing and move the sockets to the top of the chassis. It won't look as nice but the sockets themselves have a nice finish and are fairly thin so it won't be too bad. I'll have a look tomorrow evening.
by Ray P
Sun Dec 09, 2018 11:47 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 11
Views: 162

Re: The Other 13E1 SE-OTL

I've noticed that the bottoms of the 13E1s are much less profiled than the 6C33Cs and that means that, whilst they plug snugly into the sockets, the glass envelope is in contact with the chassis at the seven bolt locations. I'm wondering if this might result in some localised thermal stress to the e...
by Ray P
Sun Dec 09, 2018 11:39 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 11
Views: 162

Re: The Other 13E1 SE-OTL

Thanks for the insight Steve, something to think about and consider as the project progresses. I actually have the CLCLC power supply parts already and mostly assembled so I'll go with that to start with. The 300B SE-OTL and minbeast power supplies are different so I'll put off buying new chokes unt...
by Ray P
Sun Dec 09, 2018 6:44 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 11
Views: 162

Re: The Other 13E1 SE-OTL

Some of the other ingredients; Driver stage uses a Broskie Aikido topology with 6SN7 valves. Power supply for the driver stage will be a Neurochrome Maida regulator. 13E1 B+ supply will be CLCLC, basically re-using the power supply configuration of my Transcendent 300B SE-OTL amps (that have similar...
by Ray P
Sun Dec 09, 2018 6:35 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 11
Views: 162

Re: The Other 13E1 SE-OTL

The 13E1s look rather splendid in the chassis that I had machined for the 6C33Cs;

Image
by Ray P
Sun Dec 09, 2018 6:31 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 11
Views: 162

Re: The Other 13E1 SE-OTL

So here's the starting point - today I received a nice pair of 13E1 valves.

Image
by Ray P
Sun Dec 09, 2018 5:53 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 11
Views: 162

The Other 13E1 SE-OTL

So this is the new thread that branches from my 6C33C build project; taking a lead from Steve C's breadboard 13E1 project I'm going to go down the same route (but leave the door open on the 6C33C project).
by Ray P
Sun Dec 09, 2018 11:30 am
Forum: Buying and Selling
Topic: #26 National Union Triodes
Replies: 5
Views: 41

Re: #26 National Union Triodes

Sold