On 3 Dec 2007 at 15:36, budi santoso wrote:
> I got NOS Amperex AX7T69RB trioda
> specification for this tube :
> max dc plate voltage 8 kv
> max dc plate current 2 A
> plate dissipation 4500 W
> freq. of max. rating 110 MHz
>
> Can I use this tube for linear amplifier?
>What is the mu factor? (Amplification factor)
>If it is a high-mu tube, about 200, it would probably be a good
>amplifier. If it is a low-mu tube, about 40 or 50, it would take far
>too much power to drive it.
It has low amplification (21)
>Also, consider the filament power required. It might be much too
>high for amateur use.
filament is 12.6 V 35 A
73
Budi Santoso / YB1BS
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