To All, Looking at an old 1958 ARRL handbook, the 4-400A is listed in the tube data pages. Can't go back further. This is the oldest in the library, besides I was but a mere lad at that date.
73's wd8kdg Craig ______________________________________________________________ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
