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#1
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On Mar 24, 11:45�am, "bob.martin" wrote:
Dear All, My kenwood TL922 has developed a strange fault. *When I switch it on (via an Ameritron Soft Start module) I get a negative reading on the Ig meter of -50mA and a positive reading of around +100mA on the Ip meter with no key down. Keying the amp has no effect and the relay does not energise. *I have checked the ALC and relay connectors and the coaxial cables I've tried starting it directly bypassing the soft start box and this has made no difference. * Obviously I do not leave it on for more than a few seconds as there is clearly a fault. *I have had the covers off and can see nothing untoward in terms of burnt components and there is no burning smell and the fuses don't blow. *Also both valves (3-500zs) light up. Any suggestions as to what may be up before a trip over to Castle, has anyone else seen similar thanks Jim G7NKS |
#2
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On Mar 24, 12:05�pm, wrote:
On 24 Mar 2007 09:00:52 -0700, "Dloyd Lavies" wrote: On Mar 24, 11:45?am, "bob.martin" wrote: Dear All, My kenwood TL922 has developed a strange fault. *hen I switch it on (via an Ameritron Soft Start module) I get a negative reading on the Ig meter of -50mA and a positive reading of around +100mA on the Ip meter with no key down. Keying the amp has no effect and the relay does not energise. * have checked the ALC and relay connectors and the coaxial cables I've tried starting it directly bypassing the soft start box and this has made no difference. *Obviously I do not leave it on for more than a few seconds as there is clearly a fault. * *have had the covers off and can see nothing untoward in terms of burnt components and there is no burning smell and the fuses don't blow. lso both valves (3-500zs) light up. Any suggestions as to what may be up before a trip over to Castle, has anyone else seen similar thanks Jim G7NKS that was certainly an insightfull reply Dloydhttp://kb9rqz.blogspot.com/ Mark, Your desperate pathetic plea for attention is not granted. -- Posted via a free Usenet account fromhttp://www.teranews.com- Hide quoted text - - Show quoted text - Jim, I agree with Antonio's diagnosis of a shorted tube. However, you can also post at http://groups.yahoo.com/group/ham_amplifiers/ The Yahoo amps board is a good place to ask for info about improvement mods for the TL 922. Dloyd |
#3
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Dloyd Lavies wrote:
Jim, I agree with Antonio's diagnosis of a shorted tube. However, you can also post at http://groups.yahoo.com/group/ham_amplifiers/ The Yahoo amps board is a good place to ask for info about improvement mods for the TL 922. I'd also recommend the amps reflector. There are a lot of very knowledgeable people on there. http://lists.contesting.com/mailman/listinfo/amps -- ARRL membership = $39 (~£20) RSGB membership = £44 Don't let them rip you off any more. Do the right thing, resign from the RSGB today. The RSGB said Radio Amateurs were a threat to national security! Is this the type of organisation you want to represent you? |
#4
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On Mar 24, 12:00 pm, "Dloyd Lavies" wrote:
be adivised this a areply to known theif and cyber stalker |
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