"DW Harms" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Hi Garey,
Sounds really plausible, about the potmeter's on/off switch. Someone told me earlier about that "safety-requirement" and I always doubted that a little. Some people have a great fantasy hi! My R7 suffers this very much more then my TR7 by the way. But the R7 fortunately has a speaker on/off switch... 73, Dick PA2DW -----Oorspronkelijk bericht----- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens Garey Barrell Verzonden: woensdag 2 november 2005 4:44 Aan: Floyd Sense CC: drake Onderwerp: Re: [drakelist] TR7 AF gain control Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Floyd - Well, a lot of answers, but no one seems to have come up with the "real" reason the AF gain on the TR-7 doesn't turn the audio completely off. No big plot to prevent the ops from turning the audio down "accidently" so they can sleep, no quirk of solid state, or any of the other reasons that have appeared over the years. The reason, plain and simple, is that the ON-OFF switch mechanism has to have travel room to operate the switch. Result? You can't turn the pot all the way to zero without turning the radio OFF! Any radio that has the On-Off switch on the AF Gain control has the same problem, depending upon how much AF gain is after the volume control. This is why most receivers/transceivers have the power switch on a Function switch, or sometimes on the RF Gain control. Easiest way to kill the audio is to back off on the RF Gain control by grabbing both concentric knobs together as you turn it down. When the unobtainium AC power switch on the TR-7 dies, (which they all do if you use them enough,) and you wire across it and use an external power strip or other external switch, (like you shoulda been doing all along,) THEN you will be able to turn the AF Gain all the way down. If that "click" at the end bothers you, you can take out the switch actuator! 73, Garey - K4OAH Atlanta Drake C-Line Service Manual <http://www.k4oah.com> Floyd Sense wrote: > > "Floyd Sense" <[EMAIL PROTECTED]> made an utterance to the drakelist > gang > ---------------------------------------------------------------------- > Finally got around to listening to my newly acquired TR7, and notice > that setting the AF gain control to minimum does not reduce the AF > output to zero. Haven't dug into it yet, but wonder if this is a > common problem in the TR7? Not likely a pot problem since it adjusts > very smoothly down to the minimum, but just doesn't reduce the output > to zero. > > K8AC > ---------------------------------------------------------------------- Submissions: [email protected] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ---------------------------------------------------------------------- ---------------------------------------------------------------------- Submissions: [email protected] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
