At 12:11 AM 6/18/97 +1000, you wrote:
>Hi All,
> I just got me a good second hand Heathkit SB220, wow.!!!
>and I HATE to turn it on, because it all turns on at once.
>
>The Filaments and the HT all together, those poor 3500z dont know whats
>hitting them
>when I throw the on switch.
>
>Has anyone some info on the hows and why's of this amp please, or should I
say
>Mod's for it, especially a STAND/BY Switch.
>
>
>Tnx David.
>
>
>
Why screw up a near-perfect circuit? The filament transformer is specially
designed to be self-limiting on inrush current. The 3-500Z has instant-heat
filaments. You are not hurting a thing when you turn it on and off. You are
eliminating a major source of failure...HEAT.
(((73)))
Phil, K5PC
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