2 Months ago, after un discution with a friend of mine i decided to build with his help a Bosoz to drive my DIY-amp (in construction to). The Amp will be connected later to 2 Back Horn speakers (with Fostex drivers).
The first i made is reading the Nelson Pass PDF concerning the Bosoz as all topics i can find on diy audio to.
Than i begun to drawing on my computer some schemes from it while my friend build my the 2 Pcb : power supply and main board (both are modified to own BC056 and munforf Mcap capa)
I purchase to Digikey teh parts i need. Mundorf and BC056 came for germany and france as the tansfomater.
The mainbord and the power supply board without Mcap capa.
The main board with Mcap soldered
This the past 2 week i began the housing
I needed to modify the implantation because i wanted to have the same cable length for +/-/ground. The two board will be separated with a 3mm thick steel plate.
The next step his finishing the house by varnishing the wood front and rear faces........
Marc
The first i made is reading the Nelson Pass PDF concerning the Bosoz as all topics i can find on diy audio to.
Than i begun to drawing on my computer some schemes from it while my friend build my the 2 Pcb : power supply and main board (both are modified to own BC056 and munforf Mcap capa)
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.
I purchase to Digikey teh parts i need. Mundorf and BC056 came for germany and france as the tansfomater.
The mainbord and the power supply board without Mcap capa.
An externally hosted image should be here but it was not working when we last tested it.
The main board with Mcap soldered
An externally hosted image should be here but it was not working when we last tested it.
This the past 2 week i began the housing
An externally hosted image should be here but it was not working when we last tested it.
I needed to modify the implantation because i wanted to have the same cable length for +/-/ground. The two board will be separated with a 3mm thick steel plate.
An externally hosted image should be here but it was not working when we last tested it.
The next step his finishing the house by varnishing the wood front and rear faces........
Marc
Netlist said:Fantastic work Marc
What power amp will you build?
/Hugo
Thanks Hugo.
The first step for amplification is a 5x50W Zenquito evolution from Jean Marc Plantefève ("the french Nelson Pass). It's a class AB amp. base on Hitachi transistor. Here are somme pics of my amp in build process (It's not yet finished) :
The Pcb :
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.
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.
An externally hosted image should be here but it was not working when we last tested it.
The capa are BC C154 22000µF/40V, i have 14 of them in the amp
An externally hosted image should be here but it was not working when we last tested it.
Marc
It all looks very neat.
Did you see there are some threads discussing the Zenquito on this forum too?
They are current feedback amps, no?
I tried something for the AlephX with CF but due to lack of time and knowledge it has to rest for a while.
/Hugo
Did you see there are some threads discussing the Zenquito on this forum too?
They are current feedback amps, no?
I tried something for the AlephX with CF but due to lack of time and knowledge it has to rest for a while.
/Hugo
I continued my work on my Bosoz. I rebuilt the front and the back face plate with exotic wood
Marc
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.
Marc
Banned
Joined 2002
Banned
Joined 2002
promitheus said:Very good work.
I really like your cases with the wood and everything.
what is that small blue transformer behind the toroid for in the preamp?
Really cool .
Le little blue transformer is for Pulse Power Switch
Marc
New work this few days : wood tinting befor glossy varnishing
Marc
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.
An externally hosted image should be here but it was not working when we last tested it.
Marc
He buys these lovely heatsinks by www.seem-semrac.fr!
For the price and model , Idefixe will ask you about.
Alex
For the price and model , Idefixe will ask you about.
Alex
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