Search found 2949 matches

by Ray P
Sat Aug 17, 2019 10:14 pm
Forum: Speakers
Topic: Fane 12-250TC Retro Speaker.
Replies: 256
Views: 27588

Re: Fane 12-250TC Retro Speaker.

Also the string recording played by Ray was badly affected by them, I’ll wager. Indeed Steve. The Pachelbel I played at Owston was a bit disappointing, being quite 'edgy'. I was talking with someone aferwards who commented that it wasn't a very good recording but the reason I wanted to play it was ...
by Ray P
Sat Aug 17, 2019 9:32 am
Forum: Buying and Selling
Topic: Le cleach Horns
Replies: 6
Views: 939

Re: Le cleach Horns

You could just add the horn to BLH speaker, it will focus and boost the forward sound wave. There was an interesting design that had a second driver in the BLH to boost the bass response to match the extra dB a front loaded horn gave. Personally I got the best from these horns with a Lowther by hav...
by Ray P
Sat Aug 17, 2019 6:39 am
Forum: Everyones Projects
Topic: Inverted OTL with 6SN7/6AS7
Replies: 93
Views: 4138

Re: Inverted OTL with 6SN7/6AS7

Nick wrote:
Fri Aug 16, 2019 10:45 pm
Mike did something similar (Without rectifier) some years ago.
Are you thinking of his 'E-Choke'?
by Ray P
Fri Aug 16, 2019 10:37 pm
Forum: Everyones Projects
Topic: Inverted OTL with 6SN7/6AS7
Replies: 93
Views: 4138

Re: Inverted OTL with 6SN7/6AS7

Looks like the HV version isn't quite as high as I recalled, 200VAC input. Anyway, here are some links;

https://www.diyaudio.com/forums/group-b ... er-gb.html

https://evotronix.eu/
by Ray P
Fri Aug 16, 2019 9:45 pm
Forum: Everyones Projects
Topic: Inverted OTL with 6SN7/6AS7
Replies: 93
Views: 4138

Re: Inverted OTL with 6SN7/6AS7

Nick wrote:
Fri Aug 16, 2019 8:03 pm
They should be fine with any current requirement we're likely to ask of them for audio projects.
But not voltage.
Isn't that what I said?
by Ray P
Fri Aug 16, 2019 5:56 pm
Forum: Everyones Projects
Topic: Inverted OTL with 6SN7/6AS7
Replies: 93
Views: 4138

Re: Inverted OTL with 6SN7/6AS7

A bit fell off the end of my post. Was wondering if anyone had played around with this type of rectification or any other diyaudio modules like this? People seem to rate the approach on DIY Audio. I bought a few bare PCBs, a mixture of surface mounted and through hole, from a group buy on DIY Audio...
by Ray P
Fri Aug 16, 2019 5:46 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 10616
Views: 716332

Re: Nothing In Particular

I bought some railings on ebay to complete our sun terrace that sits atop our garage (we live on a slope and the garage is semi-buried); a real bargain, exact size I need and unused - all for £80 instead of the £700-800 quotes I've seen. Today I hired a van and went to collect them from Gillingham i...
by Ray P
Fri Aug 16, 2019 6:50 am
Forum: Assorted Stuff
Topic: The Audio-Talk Motorcycling thread.
Replies: 478
Views: 42219

Re: The Audio-Talk Motorcycling thread.

Here's some more hot Nimbus action... Would have been so much nicer if the springs uner the seats had been wound in opposite directions for left and right. I suppose that springs wound in this way might have an appeal to notions of aesthetic symmetry but there is no technical reason for having them...
by Ray P
Thu Aug 15, 2019 9:53 pm
Forum: Everyones Projects
Topic: Inverted OTL with 6SN7/6AS7
Replies: 93
Views: 4138

Re: Inverted OTL with 6SN7/6AS7

Looks like... Yes, that's essentially it, nothing fundamentally new but a very nice implementation. I've got a couple of the dual rail boards that I originally bought for a Hiraga build but also two single rail ones for a MoFo project. I think the dual rail boards will now be destined for the parts...
by Ray P
Thu Aug 15, 2019 9:15 am
Forum: Everyones Projects
Topic: Inverted OTL with 6SN7/6AS7
Replies: 93
Views: 4138

Re: Inverted OTL with 6SN7/6AS7

IslandPink wrote:
Thu Aug 15, 2019 8:18 am
Umm... what's an 'SLB' ?
https://www.diyaudio.com/forums/group-b ... ly-gb.html
by Ray P
Thu Aug 15, 2019 6:36 am
Forum: Everyones Projects
Topic: Inverted OTL with 6SN7/6AS7
Replies: 93
Views: 4138

Re: Inverted OTL with 6SN7/6AS7

Good result Wolfgang. As you know, I've started collecting parts with a view to building one myself sometime so I'll be interested in how you configure the SLB - in your earlier picture it looked like you had just done a standard build with respect to the CRC element of the SLB.
by Ray P
Mon Aug 12, 2019 10:49 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 130
Views: 9507

Re: The Other 13E1 SE-OTL

Showed the value of checking before soldering today; I had four resistors all look identical and all clearly labelled as 10K, the problem is that only three of them measured as 10K, the other is 1K! Something went wrong somewhere in the factory :roll:
by Ray P
Mon Aug 12, 2019 10:45 pm
Forum: Everyones Projects
Topic: The Other 13E1 SE-OTL
Replies: 130
Views: 9507

Re: The Other 13E1 SE-OTL

Another step forward, I soldered up most of the parts for the driver PCBs today (sorry, not a great quality picture).

Image
by Ray P
Mon Aug 12, 2019 9:59 am
Forum: Everyones Projects
Topic: DHT Heater using VCCS - PCB or Kit (Possible Group buy)
Replies: 1092
Views: 103042

Re: DHT Heater using VCCS - PCB or Kit (Possible Group buy)

I can get some boards done. I was hoping there might be a few takers to help cover costs, you need to order a decent amount to make it worthwhile. 5 US dollars for ten boards (as long as you don't want anything special like 2oz copper but even that isn't that much more) plus shipping. Probably abou...
by Ray P
Sun Aug 11, 2019 10:01 pm
Forum: Everyones Projects
Topic: Inverted OTL with 6SN7/6AS7
Replies: 93
Views: 4138

Re: Inverted OTL with 6SN7/6AS7

Have you tried the SLB yet Wolfgang?

Ray