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Transistor Amplifiers Pill Boxes

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  #1  
Old 07-25-2010, 06:49 PM
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lonestarbandit lonestarbandit is offline
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Default whoopsie!

Well boys....question if in the midst of transmitting I say I may have lost my ground wire on my 6 pill 2879 lipzipper and now its dead as a hammer......well it turns on but wont key.....whats the chances I smoked the pills? Was working great prior to my whoopsie....

Nothing smells "kooked" so maybe I just had a meldown on the input circuitry??
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Old 07-26-2010, 09:19 PM
555 BigHorn Mobile 555 BigHorn Mobile is offline
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hook the ground wire back up????
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As such the device is not protected against interference and the parties operating such a device can not seek redress from parties operating radio communication services. In other words they do not get protection from interference and thus must accept interference. Because of this, any part 15 device should be designed to operate robustly under all conditions
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Old 07-26-2010, 09:21 PM
555 BigHorn Mobile 555 BigHorn Mobile is offline
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take the lid off and post some pics of the inside
might be something in the keying circuit that couldnt take the amps the ground wire was providing
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As such the device is not protected against interference and the parties operating such a device can not seek redress from parties operating radio communication services. In other words they do not get protection from interference and thus must accept interference. Because of this, any part 15 device should be designed to operate robustly under all conditions
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Old 07-26-2010, 10:02 PM
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lonestarbandit lonestarbandit is offline
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haha hook the ground wire back up lmao. I AM an ex aircraft electrician lol
give me some credit. Theres nothing to see on pics. Nothing is smoked burned melted or otherwise molested....My best guess is i took out the NPC transistor that controls the keying
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Old 08-21-2010, 05:02 PM
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all fixed.... as I had hoped all I did was pop the diode on the input but I replaced the triac too since I was in there since I found some time last nite with nothing to do so I repaired it. Thanks guys for the help.

73s
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Old 08-22-2010, 07:56 AM
toby321 toby321 is offline
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hey we all mess up once in a while good to hear your back up and running
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