>I want to run multiple 8877 amps on a single HV supply, I can't figure a
>way to keep the 3 minute delay if I turned on a second amp. Is there a
>danger to the tube if heater voltage is applied after HV is on, even if the
>tube is in cutoff? HV is on all amps when on.
> Thanks, Dick NY1E
>
Oxide-cathode damage is caused by allowing cathode current to flow before
the cathode reaches operating temp. If you have cutoff bias applied, no
current can possibly flow.
later, Dick
- Rich..., 805.386.3734, www.vcnet.com/measures.
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