| Author |
Message |
    
Captian_radio
Intermediate Member
Username: Captian_radio
Post Number: 376
Registered: 9-2004
| | Posted on Monday, March 17, 2008 - 9:45 pm: | 
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Where is a good source of 8 vdc for the clarifier mod on the TRC 449?I know that it is the same as the Cobra 139xlr but I can't find the diode for the 8vdc,anyone know?
Tnx Bob CEF451/VE1CZ
Robert L. Spicer The days of radio are just beginning!
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Tech808
Moderator
Username: Tech808
Post Number: 15508
Registered: 8-2002
| | Posted on Tuesday, March 18, 2008 - 5:03 pm: |
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Captian_radio,
If I remember correctly you use Pin #1 of IC6 and REMOVE D30.
For more information do a GOOGLE search for:
TRC 449 Clarifier Modification
Hope this help's,
Lon~Tech808
CEF#0808/HAM#001/CVC#0002
Tech808@copperelectronics.com
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Captian_radio
Intermediate Member
Username: Captian_radio
Post Number: 377
Registered: 9-2004
| | Posted on Tuesday, March 18, 2008 - 10:12 pm: |
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Lon I did the google search before I placed my post am seeing 2 different ways to do the mod.One says to cut R117 ,cut D30 and look for a source of 8vdc but I don't see 8VDC on any pins of IC 106.Clarifier wires purple goes to 8 VDC and brown to ground.Tnx for the help I will figure it out sooner or later.Its basically the same as the mod for the 139 XLR.
Bob CEF451/VE1CZ
Robert L. Spicer The days of radio are just beginning!
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Captian_radio
Intermediate Member
Username: Captian_radio
Post Number: 378
Registered: 9-2004
| | Posted on Wednesday, March 19, 2008 - 10:55 pm: |
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Ok I found the IC6 and the mod is done,now to get some extra frequencies done in a few days,it may be an old radio but is one of the better radios with great audio just like the TRC 451 and the 453,good audio chip.
Bob CEF451/VE1CZ
Robert L. Spicer The days of radio are just beginning!
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