[Icom] IC 761

Mon, 07 Apr 2003 21:50:09 -0600

Hi,
Only tube rig I have is S-line(winged emblem). Still works/looks new.
Still work on tubes a lot. My guitar playing son has dozen or so tube amps.
SS amp ruins music. None here.  Lots of fun, hi.
73,
Tony, VE6CGX

wjdiamond wrote:

>Hi Tony,
>
>Yep, 12 V sure beats the 1000 VDC in the Collins rigs...
>
>73
>
>        William J. Diamond (Bill)
>        Rogers, Arkansas USA
>        [email protected]
>
>        Ham Radio Operator WR�T
>      Flying The Flag Long Before
>            It Was Popular
>   Please Visit My New Icom Radio Page
>
> http://pages.sbcglobal.net/wjdiamond/index.html
>
>-----Original Message-----
>From: [email protected] [mailto:[email protected]]On
>Behalf Of Tony Hwang
>Sent: Monday, April 07, 2003 10:20 PM
>To: [email protected]
>Subject: Re: [Icom] IC 761
>
>
>Hi,
>That little guy is known weak link. I had to replace it twice on my 765
>B4 I installed heavier one even with
>clip on heat sink. Sorry I had to mention it the first time. I used a
>final power xsistor out of an old CB radio.
>It is working fine since.
>Now you know it inside out, hi. Working on low voltages, there is no
>zapping by HV.
>73,
>Tony, VE6CGX
>
>wjdiamond wrote:
>
>  
>
>>Hi Folks,
>>
>>Well, I am finding out more about the ailing 761. If I follow the proper
>>procedure in the book for setting the driver and final current, ( in SSB
>>not RTTY) they adjust properly.
>>
>>Troubleshooting using a scope reveals there is no RF at J8 on the RF unit
>>board, thus there is nothing at the PA module.  I think someone had just
>>turned the bias wide open so some output would show on a meter to sell it.
>>
>>It would appear that Q14, the broadband amp on the RF unit is open. I am
>>awaiting a replacement now.  Sure glad I have a dual trace scope..
>>
>>More later....
>>
>>       William J. Diamond (Bill)
>>       Rogers, Arkansas USA
>>       [email protected]
>>
>>       Ham Radio Operator WR�T
>>     Flying The Flag Long Before
>>           It Was Popular
>>  Please Visit My New Icom Radio Page
>>
>>http://pages.sbcglobal.net/wjdiamond/index.html
>>
>>
>>----
>>Your Moderator: Dick Flanagan W6OLD, [email protected]
>>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>>Icom FAQ: http://www.qsl.net/icom/
>>
>>
>>
>>    
>>
>
>
>----
>Your Moderator: Dick Flanagan W6OLD, [email protected]
>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>Icom FAQ: http://www.qsl.net/icom/
>
>
>----
>Your Moderator: Dick Flanagan W6OLD, [email protected]
>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>Icom FAQ: http://www.qsl.net/icom/
>
>  
>

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