Carey, it appears from your description the TR4 is working fine in AM mode. That mode is a suppressed carrier AM, meaning the carrier level or power output is very low on idle and when modulated the power out varies with the modulation. The 6JB6 tubes are not rated for high level constant power output, and would quickly be destroyed if that was done. Like SSB carrier modulation, in AM mode its a suppressed carrier AM modulation used to protect the final tubes from being destroyed. Ron / WB4HFN Check out my Drake Website http://www.wb4hfn.com _____
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Carey Lockhart Sent: Monday, September 24, 2007 12:27 AM To: Drake List Subject: [drakelist] tr-4 no am carrier this is my first post. and my first drake. so here it goes. i have a early model tr-4. i have been slowly working the bugs out of it. i was going to try it out on am but no carrier. is this normal? when i spoke the relative output moves upward. thanks for any help Carey Lockhart, KC5GTT [EMAIL PROTECTED]
