Cooper Smith amp

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acorn
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Cooper Smith amp

Post by acorn » Fri Sep 21, 2018 3:28 pm

Good day all

Has any one constructed the Cooper Smith amplifier Type BP1 useing 12AU7 and EL84 valves if so I would like to hear about there experience of this amp and how good or bad they think it is.

Acorn

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pre65
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Re: Cooper Smith amp

Post by pre65 » Fri Sep 21, 2018 3:30 pm

Like this ?

http://www.r-type.org/articles/art-120.htm

Sorry, that's EL34,

Must be this one ?

http://www.r-type.org/articles/art-163.htm

Is W.Holmes any relation to our Mike H ? :)
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Re: Cooper Smith amp

Post by acorn » Fri Sep 21, 2018 3:37 pm

Pre

No its not those, I must clarify its the Push- pull version circa 1957.

Acorn

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