Hi Barrie... In your HB-3, where exactly is the 4-400 data located? I found mine in the Transmitting volume and the other 4-tubes in last volume of the original set. I was also surprised to find only one (1) sheet of data. Is this consistent with your HB-3?
Thanks, Rick/K5IZ I have an HB-3 here that shows a data sheet for the 4-400A dated 9-62. I also have an Eimac catalog from the early 1950s that shows the 4-400. 73, Barrie, W7ALW ______________________________________________________________ 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:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
