My labour of love - a serious bass amplifier.

Started by milky, March 31, 2017, 10:44:03 AM

Previous topic - Next topic

milky

Having grown up in the valve (tube) era, I always had a love of the warmth they can impart to music. These pictures are V2 of a 200 watt bass amp I built for my talented bassist son. We are about to embark on V3, which will include some effects and interesting things.
OtsDJ           PDI = PAAA-BHVP,  PBQN-3658
S & L               PDI = PAAA-BK27 x 2
Studio             PDI = PAAA-BL38

milky

OtsDJ           PDI = PAAA-BHVP,  PBQN-3658
S & L               PDI = PAAA-BK27 x 2
Studio             PDI = PAAA-BL38

clover-leaf-productions

Dang Milky that is a beautiful thing!  Are those the high performance tubes that come out of Europe, that have a blue glow when they are energized?  I understand the blue glowing tubes are quite expensive, but worth the financial investment for the true audiophile.
Cheers,
Brian
Dayton, Ohio, USA

www.clover-leaf-productions.com

milky

Yes, CLP, these are Russian tubes from Electro-Harmonix. They glow with a bluish tinge which darkens as the volume increases.
OtsDJ           PDI = PAAA-BHVP,  PBQN-3658
S & L               PDI = PAAA-BK27 x 2
Studio             PDI = PAAA-BL38

Jigger

Ah Milky memories of valve amps takes me back.
Ron
PDI PAAA-BE42 x 2 OtsAV Pro
PDI PBQ4-BH3P x 1 OtsAV Pro

LASER558

Just beautiful, love valve amps and that's a fantastic example  :thumbsup:

clover-leaf-productions

The Russians really worked very hard to perfect tube technology, even into the 80's, and 90's, because they believed it far superior for military purposes, and felt it had a better chance of surviving an EM pulse from a nuclear blast.
Cheers,
Brian
Dayton, Ohio, USA

www.clover-leaf-productions.com

DJ Nikki

Dee Sallee-formerly known as DJ Nikki

markebenson

Looks like north Korea is still using tube technology for their military.

milky

Not too sure what to read into that comment. If it was politically motivated, I will not make a response. I just posted because I am proud of what I have built, and was trying to encourage others to respond with whatever they may have built or thought about designing.
OtsDJ           PDI = PAAA-BHVP,  PBQN-3658
S & L               PDI = PAAA-BK27 x 2
Studio             PDI = PAAA-BL38

clover-leaf-productions

Nothing interesting to read, or see here Dr. Milky.  I was just endeavoring to give folks an understanding of why these cool looking blue tubes came into existence.  It is unfortunate to say, but many of the great technologies that we enjoy today had their developmental roots on some military build up drawing board.
Cheers,
Brian
Dayton, Ohio, USA

www.clover-leaf-productions.com

Dj Buik

AWESOME!

What circuit diagram you used?
I saw you even built your diode bridge with standard components.


I built back in de 70s/80s AM transmitters with the famous 807 tube:
https://en.wikipedia.org/wiki/807_(vacuum_tube)

Also i built a Amplifiers with the EL34 tubes.
https://en.wikipedia.org/wiki/EL34

Great times !
Dj Buik, Netherlands (PAAA-BFAJ, PADQ-QAAN, PAES-37QS and PB7S-AD6J)

milky

Quote from: Dj Buik on May 05, 2017, 04:02:19 PM

EH)What circuit diagram you used?
I saw you even built your diode bridge with standard components.


I have a book "Principles of Power" by Kevin O'Connor. It has many, hand-drawn circuits, mainly early Fender guitar and Hammond organ designs. I tried to keep it as authentic as possible, but I did use a printed circuit kit for the EQ section. I intend to replace that with a five stage EQ circuit based around a single 12AX7 (6922 EH).
OtsDJ           PDI = PAAA-BHVP,  PBQN-3658
S & L               PDI = PAAA-BK27 x 2
Studio             PDI = PAAA-BL38