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March 24th 07, 04:00 PM
posted to alt.ham-radio.mods,rec.radio.amateur.boatanchors,rec.radio.amateur.equipment,rec.radio.amateur.misc,uk.radio.amateur
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Question re TL 922 amplifier
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 |
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