> > National decided in the HRO50 design to use a 4.3 Ohm resister in series with the fil of both 6H6 dual diodes, ( noise blanker and detector) dropping the fil to about 5 v.............
================================== Perhaps it is for this reason, a method that is used in some other diode circuits. The resistor in series with the filament reduces the no-signal d-c level on the output. The no-signal d-c level is caused by the tube contact potential. If not reduced it may cause a delay voltage to be present. Maybe, maybe not. My WAG. Back to spending my wife's inheritance. K7DFW ..._._ ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: [email protected] To unsubscribe, send an email to [email protected] with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
