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Has anyone tried the Sun Valley 211/845 amp kit?

I'm considering constructing this kit. It is made in Japan, and looks very well done. They are available from Wall of Sound, in Vancouver, Canada. I would be glad to hear any information, be it positive or negative.

Thanks, and regards,
Dan 
islandmandan

Showing 4 responses by noromance

noromance's avatar
noromance
1,780 posts
 
So you want to build AND get some big triode sound?! If you can solder and know the basics of electronics AND how to discharge a power supply with a wooden stick and a 100k 25 watt resistor, you should be all set (sic)!
noromance's avatar
noromance
1,780 posts
 
Dan, have you seen this?
noromance's avatar
noromance
1,780 posts
 
Even a small pentode power amp is going to have dangerous voltages. But maybe it's a place to start. Bottlehead?
noromance's avatar
noromance
1,780 posts
 
Check and double check and then check again all connections and layout before you power it up. Power it up with a variac.
Safety from when I used service CRTs many years ago.
  • When prodding around checking voltage, ensure your meter probe handles are designed for high voltage.ALWAYS keep one hand behind your back.
  • After you’ve powered it down AND let it discharge, ALWAYS keep one hand behind your back. Never let yourself become part of the circuit.
  • Discharge the power supply caps with a high wattage resistor. Measure B+ with meter to ensure it is discharged.
  • Ground your equipment
  • Tell your wife/friend what you are doing and to keep an eye out and do not work alone.
  • Have a safety procedure e.g. check and double check power is off and supply is discharged before working on unit etc.

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