[AMPS] 8877 3 min time delay

[measures]

>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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