Yes, but there are practical issues. This is certainly not a speedy method. Changing tubes out of a working rig puts a good tube in jeopardy of a mis-handling accident. How are results interpreted for a single tube changed into a push-pull final? You have to keep a different transmitter around for each tube type that you want to test (hmmmm, maybe this is an advantage, not a disadvantage....). Etc. Etc.
I think a simple emission checker is more practical--certainly more flexible--and probably tells you just about everything you need to know. If you need to know more, THEN you put it n the rig. 73, Don Merz, N3RHT -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Donald Chester Sent: Tuesday, September 21, 2004 11:56 PM To: [email protected]; [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: [AMRadio] RE: Testing Transmitting Tubes I think the best method would be to try the tube in the final rf stage of a plate-modulated AM transmitter and see if it makes full power on modulation peaks, and shows good linearity on a trapezoid pattern. _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar - get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/ ______________________________________________________________ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] The information contained in this e-mail may be confidential and is intended solely for the use of the named addressee. Access, copying or re-use of the e-mail or any information contained therein by any other person is not authorized. If you are not the intended recipient please notify us immediately by returning the e-mail to the originator.(A)

