I have a Delta II that I am refurbing, and it appears that the internal speaker has some sort of issue or short. After a few minutes the audio gets very distorted, and the audio amp module gets very
I would say just use the external speaker. They sound better to my ears anyway. -- Original Message -- From: "Bill Acito W1PA" <w1pa@hotmail.com> To: <tentec@contesting.com> Sent: Friday, October 03,
Hello Bill: Look at the remote speaker jack. It probably needs replacing. They get bent w/ age and/or break inside. I've replaced several of them. The tongue in the jack looses it's tension and arcs
re: external jack I will take a look.... thank you for the suggestion. It would make sense considering the internal speaker still works. I agree that an external speaker does sound better, but if I e
Denton, The internal speaker may have picked up metal particles which short circuit the air gap between the magnet and coil causing the cone to drag and distort sound. A gentle vacuuming of the insid
Ooops it was Bill asking about the speaker for the Delta. -Stuart _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinf
Ah!! Good thought!! One real old timer told me that he avoids any and all internal speakers in hf rigs like the plauge....the vibration from the speaker can cause the tweekable coils to move out of a
But that would not account for the audio output module getting very hot using the internal speaker? Bill W1PA _______________________________________________ TenTec mailing list TenTec@contesting.co
The hot audio output stage says to check for partially shorted coupling capacitor, or a by pass capacitor on the speaker output line. Sometimes there is a resistor in series with a cap, and if the ca
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Mon, 06 Oct 2008 15:02:53 -0600
And your cat may be leaving for other territories because when that series RC isn't there the amplifier will oscillate at ultrasonic frequencies. Its a parasitic suppressor. 73, Jerry, K0CQ _________
Yeah, I looked at the schematic last night, and it has to one of three things -- the speaker itself, or the wiring to it, or the head phones or external speaker jacks -- the audio line goes through
Bill: I sent you an e-mail suggesting the external speaker jack could be suspect. You can short the tounge<sp> and the ground and see if your internal speaker works. You can proceed from there. If th
Issue closed. Not sure who it was, who mentioned they had been in their Argonaut II recently, but upon closer inspection the entire top deck of these rigs is hinged, and swings up. (I am so disappoin
Bill, Glad to hear your speaker swap worked. The old one may have had a metal fragment in the voice coil gap or it may have just warped on its own. (Was the radio ever set on a window shelf or desk n