Eimac specified 8.3 volts for the 6C21 in pulse service. 7.5 volts is the correct voltage in non-pulse service.
73, Barrie, W7ALW ----- Original Message ----- From: "Geoff Edmonson" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, January 29, 2004 5:06 PM Subject: Re: [AMRadio] request for info on using the 6C21 > > This is at the expense of tube life. If the tube is run at 7.5 volts it > > will do just fine in modulator or rf power amp service, and will last much > > longer. Essentially, Eimac said run a 450T's filament voltage up, and it > > will deliver incredible peak power while it lasts, but will have a short > > life. > > Was it you, Don, who also said (at one time) that running too little of voltage > on filaments can have the same undesireable effect on tube life? > > 73 = Best Regards, > -Geoff/W5OMR > > _______________________________________________ > AMRadio mailing list > [email protected] > http://mailman.qth.net/mailman/listinfo/amradio >
