The SA-KI Ruby and PM-KI Ruby celebrate Brand Ambassador Ken Ishiwata’s 40th anniversary with the company. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...
The circuit has been enhanced from another version of battery-powered amplifier where an input buffer feeding the inverting input and the volume control changed from the output rheostat to the type ...
Couples celebrating their ruby (40-year) wedding anniversary might renew their wedding vows or throw a ruby red-themed party, while the very few hardy folk that make it to 40 years in one company's ...
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