The Alpha website shows it as 71 CFM. Same fan they offer for the 8410
but I used a quieter 61 CFM EBM Papst model 4800ZW fan available from
Allied (and other sources).
Bob W6VY
On 1/25/2015 9:32 AM, DGB wrote:
I have an Alpha 91b that I wish to add a fan to the opening on the back.
Is it real critical as to the the size of it, speaking of cfm's, or will
anything help? I have several fans that will fit the hole size.
thanks 73 Dwight NS9I
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