I built a Mars Limited Edition just before the festive season:
Tabula Rasa
The amp was destined for Singapore, and should also have 110V option for USA. The vintage Partridge was chosen to do the Power Transforming:
The chassis was measured out and drilled:
https://lh3.googleusercontent.com/-
XdwxcslbmA4/Tw1BBtD_UNI/AAAAAAAABz0/ocU07LGPaaM/s640/image654.jpg
Transformers are mounted. A view of the Mains connectors on the Partridge:
I used a small coil for RF suppression after the diodes:
Detail of the EL34 socket. Cathode resistor and bypass cap:
The job is finished:
This amp sounds good. You can turn it all the way up without weird things happening. The low gain of the 6SN7's and the separate EL34 cathode resistors helps. The feedback loop also stabilizes the amp nicely and the speakers sound more controlled. It should be loud enough for a party at home
Tabula Rasa
The amp was destined for Singapore, and should also have 110V option for USA. The vintage Partridge was chosen to do the Power Transforming:
The chassis was measured out and drilled:
https://lh3.googleusercontent.com/-
XdwxcslbmA4/Tw1BBtD_UNI/AAAAAAAABz0/ocU07LGPaaM/s640/image654.jpg
Transformers are mounted. A view of the Mains connectors on the Partridge:
I used a small coil for RF suppression after the diodes:
Detail of the EL34 socket. Cathode resistor and bypass cap:
The job is finished:
This amp sounds good. You can turn it all the way up without weird things happening. The low gain of the 6SN7's and the separate EL34 cathode resistors helps. The feedback loop also stabilizes the amp nicely and the speakers sound more controlled. It should be loud enough for a party at home
