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Old 29th July 2012, 01:32 AM   #4241
mhouston is offline mhouston  Australia
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Quote:
Originally Posted by triodes4ever View Post
Here an older pic of the current project, monoblocks with 813 in P-P. Driven by (Full Music) 300B, in turn driven by the respected 27. All (amorph.) iron from Tribute Audio.

Currently all brushed-anodized in black/silver, Xfrms in metallic dark red.
Sick as!
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Old 3rd August 2012, 03:42 PM   #4242
Steve Cresswell is offline Steve Cresswell  United Kingdom
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Here is my latest project.

Click the image to open in full size.

It uses British valves all the way through, and puts out a whole three quarters of a watt.
Input valves (grey glass) are Osram MH4 triodes whilst the outputs are late 1930s Mazda Globe AC/P1
Sounds lovely.
A British Darling amplifier.
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Old 3rd August 2012, 03:47 PM   #4243
Steve Cresswell is offline Steve Cresswell  United Kingdom
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Here is the underside,

Click the image to open in full size.

Very very simple, not a lot in there.
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Old 3rd August 2012, 04:13 PM   #4244
mhouston is offline mhouston  Australia
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Mate 3/4W you must be mad. But admire your GUTS!. I have just designed and prototyped a 1.2W SS amp but have not yet built it thinking it to "weak". Tell me how does your amp sound. I have Fostex FE206 back loaded horns (96db efficient) so your amp and mine should work well.

So how does it sound and in what speakers???????
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Old 3rd August 2012, 04:47 PM   #4245
Steve Cresswell is offline Steve Cresswell  United Kingdom
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It sounds great actually.
Speakers are large 5ft Metronome quarter wave pipes with Fostex F225WK wide-range drivers plus horn tweeter helper. Efficiency is around 96dB/W.
Room size is 12ft x 13ft with a 9ft ceiling.

It throws a huge soundstage with plenty of micro dynamics and has a big, full-bodied presentation. I love it!
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Old 3rd August 2012, 04:54 PM   #4246
head1962 is offline head1962  Switzerland
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Default 1.5W

Quote:
Originally Posted by mhouston View Post
Mate 3/4W you must be mad. But admire your GUTS!. I have just designed and prototyped a 1.2W SS amp but have not yet built it thinking it to "weak". Tell me how does your amp sound. I have Fostex FE206 back loaded horns (96db efficient) so your amp and mine should work well.

So how does it sound and in what speakers???????
Hi there,
I've build plenty amps with 1 to 1.8 (max, max, max) output.
more then enough....
I never open them more then 3/4
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Old 3rd August 2012, 06:49 PM   #4247
dady is offline dady  Europe
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Quote:
Originally Posted by Steve Cresswell View Post
Here is my latest project.

Click the image to open in full size.

It uses British valves all the way through, and puts out a whole three quarters of a watt.
Input valves (grey glass) are Osram MH4 triodes whilst the outputs are late 1930s Mazda Globe AC/P1
Sounds lovely.
A British Darling amplifier.
Its a green peace SE, conservationism to maximum expression.
They looks funny and beautiful. Good work.
__________________
Esteban Bikić
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Old 4th August 2012, 01:18 AM   #4248
mhouston is offline mhouston  Australia
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Steve, appear to big tubes for such a low output. I guess it is just the tube characteristics which predict power output.
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Old 4th August 2012, 08:03 AM   #4249
jim is offline jim  Belgium
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Quote:
Originally Posted by Steve Cresswell View Post
Here is my latest project.

Click the image to open in full size.

It uses British valves all the way through, and puts out a whole three quarters of a watt.
Input valves (grey glass) are Osram MH4 triodes whilst the outputs are late 1930s Mazda Globe AC/P1
Sounds lovely.
A British Darling amplifier.
That's a nice one! Love the green color, fits perfectly with your wallpaper!
Guitar amp enclosure?
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Old 4th August 2012, 08:21 AM   #4250
Steve Cresswell is offline Steve Cresswell  United Kingdom
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Yes it is a guitar amp enclosure, intended for a Marshall 100 watt.
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