Hi Guys,
Thought I'd relate this for anyone experiencing poor results with bedini type experiments and 2n3055 NPN transistors.
My initial bedini circuits all used ST (manufacturer name) 2N3055 transistors. They where not what I considered cheap, but they worked well.
In an attempt to reduce the costs, I purchased 10x 2n3055 of a cheaper brand(will get the brand name) with a big surprise. These cheaper transistors performed very poorly in my opinion allowing around 30% of the current to flow through the circuit when compared to the ST transistors.
For example, one SSG I tested drew 110ma at 12v running an ST transistor. After switching it with one of the cheaper transistors it would only draw 40ma and the neon would not glow. I had to double the voltage to achieve a similar resulsts to the ST transistor.
After looking around the net for a bit it would appear the ST's specs are far higher than the requirement set for the 2n3055 standard. I'll have to attribute it to that for now.
cheers
Thought I'd relate this for anyone experiencing poor results with bedini type experiments and 2n3055 NPN transistors.
My initial bedini circuits all used ST (manufacturer name) 2N3055 transistors. They where not what I considered cheap, but they worked well.
In an attempt to reduce the costs, I purchased 10x 2n3055 of a cheaper brand(will get the brand name) with a big surprise. These cheaper transistors performed very poorly in my opinion allowing around 30% of the current to flow through the circuit when compared to the ST transistors.
For example, one SSG I tested drew 110ma at 12v running an ST transistor. After switching it with one of the cheaper transistors it would only draw 40ma and the neon would not glow. I had to double the voltage to achieve a similar resulsts to the ST transistor.
After looking around the net for a bit it would appear the ST's specs are far higher than the requirement set for the 2n3055 standard. I'll have to attribute it to that for now.
cheers
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