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You will blow the fuse if you spend too much time with the key down.
I used to run RTTY, reducing the power to 60 watts or so. You would be safe tuning up in TUNE position, but need to go CW for the full power touchup. There should be no reason to lean on it for more than 5 seconds at a time. Nutralization is easy. Adjust bias for 55 ma. no drive, then tune up the radio normally on 28 MHz. and switch the screen grids off on the back panel and adjust neut cap for minimum output on a receiver. Use an insulated screwdriver or you will burn out the plate choke. When you are through, plate dip and maximum RF output should be very close (but not usually exactly coincidental) and maximum RF output should occur at 225-250 ma. IP. Always tune rig for maximum RF output for cleanest signal and reduce drive for your needs. ac6tk "Dick Suhar PE CMfgE" wrote in message ... Fuse value depends upon what line voltage the unit is set up for. The TS830S can be either the 110VAC or 220VAC....you know.. higher voltage lower amperage. Neutralization need is not indicative of a power supply problem.. look at the rectifier unit assembly and check for a problem there.. ripple , hum, wrong primary winding wiring set up. 73 Dick _____________________________________________ "Gary" wrote in message ... I bought a TS-830 from a ham friend that buys estates etc. He couldn't get more than 30 watts out of the '830. I tried it and by putting the drive control at a low level then dipping the plates and adjusting the load control and finally increasing the drive control I was able to get 100 watts out. Then the rig went dead. I checked the fuse on the back and it was blown. It was a 3 amp fuse but right underneath the fuse holder in white lettering it said 6A I'm wondering if the '830 should have a 6 amp fuse instead of the 3 amp fuse that was in there ? Also I noticed that even when the plates were dipped correctly that the plate current meter at 100 W out was almost pinned to the max, maybe it needs neutralization ? Thanks in advance. Gary |
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