I agree you are going past the ALC meter limit, I always set mine to about 3/4 on the scale also when you are tuning it for full power output on CW your meter should be on RF not IP., I have never seen this process done exactly how you are doing it. hopefully you haven"t fried your tubes LOL 73, from United States
Very helpful video. You method is much faster than the method that I have been using. Sadly, I discovered that I am only putting out 40W on 20M if I tune the plate to 225 ma. I guess I need to start shopping for new tubes.
Got my Ts820 up and running too. It had the following issues Q14 on PLL board-2sc741 was open- replaced by 2n2222 PLL out of adjustment, tuned to 3.1v midband Display had an open via -cutting power to the display inverter. Via below 100uf/10v capacitor next to L23 12by7 screen resistor had drifted to 9k from 3.9k ab2xf
I have a TS520 and once you get into the swing of plate and load you have a fair idea where the settings should be for the band you are on and then just peak the plate and load for maximum out put on your power meter.
ALC what. Kind of rushed through that. Could you explain? Drive is up full when you start your tune up. How is that done. Do you need to check idle current for these tubes
hi mtae lovely rig,ive got a trio ts 830,can i say that u done the alc bit wrong,u peaked it right past the alc mark,ur supose to have it on the end of the alc meter,u had it way past,u turn drive down so the needle wont go past the alc mark on meter,u want it to reach the end of alc meter,not well past it as u did,try that mate its the proper way to tune it.keep up the vids mate,oww im not having a go at u just try to help kev
wrong ur going past ur alc,u drive control so ur not going past ur alc,strange. just wondered why u keep saying ok ok ok we can answer back lol classic kev
I agree you are going past the ALC meter limit, I always set mine to about 3/4 on the scale also when you are tuning it for full power output on CW your meter should be on RF not IP., I have never seen this process done exactly how you are doing it. hopefully you haven"t fried your tubes LOL 73, from United States
Very helpful video. You method is much faster than the method that I have been using. Sadly, I discovered that I am only putting out 40W on 20M if I tune the plate to 225 ma. I guess I need to start shopping for new tubes.
@morseman4 Thanks for the heads up! I'm about to purchase one of these lovely rigs tomorrow, and I would have done it wrong!
Got my Ts820 up and running too.
It had the following issues
Q14 on PLL board-2sc741 was open- replaced by 2n2222
PLL out of adjustment, tuned to 3.1v midband
Display had an open via -cutting power to the display inverter. Via below 100uf/10v capacitor next to L23
12by7 screen resistor had drifted to 9k from 3.9k
ab2xf
I have a TS520 and once you get into the swing of plate and load you have a fair idea where the settings should be for the band you are on and then just peak the plate and load for maximum out put on your power meter.
ALC what. Kind of rushed through that. Could you explain? Drive is up full when you start your tune up. How is that done. Do you need to check idle current for these tubes
Thank you.
hi mtae lovely rig,ive got a trio ts 830,can i say that u done the alc bit wrong,u peaked it right past the alc mark,ur supose to have it on the end of the alc meter,u had it way past,u turn drive down so the needle wont go past the alc mark on meter,u want it to reach the end of alc meter,not well past it as u did,try that mate its the proper way to tune it.keep up the vids mate,oww im not having a go at u just try to help
kev
wrong ur going past ur alc,u drive control so ur not going past ur alc,strange.
just wondered why u keep saying ok ok ok we can answer back lol classic
kev