ddd said:Very inventive! And very useful for me!
Is seems like you have at your disposal a fantastic crew of designers, mechanics, turners, dryers to achieve such a magnificent result
In fact this is truly a "one man's show..."
I do everything myself and I am fortunate to have a friend's wood working shop, a high level one: there is a good amount of tools and special machines I use to get the needed precision in cutting, driling, painting, etc, to have a decent job done.
Without it I would have not dared to face this kind of work.
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Ricardo
Sure!
Actually the tubes are ECC83, KT88 and 5U4G.
I used this chema:
http://www.bonavolta.ch/hobby/en/audio/kt88_1.htm
That toroid feeds ECC83´s and KT88´s filaments. There is a bigger toroid underneath for B+ and 5U4G´s filaments.
Chokes are Hammond 193G and OPT´s Hammond 1627SE.
I will post picture of inside later...
Oh, and it sounds very nice
Actually the tubes are ECC83, KT88 and 5U4G.
I used this chema:
http://www.bonavolta.ch/hobby/en/audio/kt88_1.htm
That toroid feeds ECC83´s and KT88´s filaments. There is a bigger toroid underneath for B+ and 5U4G´s filaments.
Chokes are Hammond 193G and OPT´s Hammond 1627SE.
I will post picture of inside later...
Oh, and it sounds very nice
Here's my just finished line preamp
I have put in all the gadgets I could think of like
- a single contact touch switch to turn it on & off
- remote controlled volume and inputs (dear couch, here I come)
- an EM83 'magic eye' to play to the music - really beautiful to watch. I made it switchable so I can turn it off at will
As most of the fuss in building a preamp is the peripherals, the main circuit is housed on an removable epoxy board so I can try several tubes/circuits in the future
Currently I am using 6H30p in a srpp configuration but I have already started building a board with 76 / 6SN7 (CF)
It drives beautifully my 4-year old 6C33 OTL which I had presented here
I have put in all the gadgets I could think of
like- a single contact touch switch to turn it on & off
- remote controlled volume and inputs (dear couch, here I come
)- an EM83 'magic eye' to play to the music - really beautiful to watch. I made it switchable so I can turn it off at will
As most of the fuss in building a preamp is the peripherals, the main circuit is housed on an removable epoxy board so I can try several tubes/circuits in the future
Currently I am using 6H30p in a srpp configuration but I have already started building a board with 76 / 6SN7 (CF)
It drives beautifully my 4-year old 6C33 OTL which I had presented here
Attachments
Valhalla, AB2, 2x75W amplifier, with separate power.
Valhalla, AB2, 2x75W amplifier, with separate power.
The amp and power is so ugly that it's a sort of beautiful. The camouflage paint scheme is not easy to spot at the picture.
Many will call this "kitsch"; I’ll call it a very good amplifier
The red wine on the right hand side is '04 Masi, Modello Delle Venezie, actually not that good...
Valhalla, AB2, 2x75W amplifier, with separate power.
The amp and power is so ugly that it's a sort of beautiful. The camouflage paint scheme is not easy to spot at the picture.
Many will call this "kitsch"; I’ll call it a very good amplifier
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
The red wine on the right hand side is '04 Masi, Modello Delle Venezie, actually not that good...
Thanks Giaime
Here is some other pics from other angles.
Mapletree Audio Design (MAD) driver board and Sowter UN70 custom made OPTs. The VU-meters are Sifam AL20SQ "vintage" VU-meters. The bias meter is pulled out from a WWII german radio transmitter.
Here is some other pics from other angles.
Mapletree Audio Design (MAD) driver board and Sowter UN70 custom made OPTs. The VU-meters are Sifam AL20SQ "vintage" VU-meters. The bias meter is pulled out from a WWII german radio transmitter.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
807 Amp
The latest project is finally complete. 2 X 26W; Class AB(1) 807's.
This turned out very well. Looks good; sounds great.
The latest project is finally complete. 2 X 26W; Class AB(1) 807's.
This turned out very well. Looks good; sounds great.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
