12 KW CCS ON 160-15M....USING THE 3CX-6000A7..... PART 23
Here, the 7.0 vac @ 80 amp CCS fil xfmr and the mating 4 amp, 240 vac
variac is installed. Along with the pair of 100 amp CCS
rated....'supercon connectors'. 4 ga wire from supercon connectors over
to RF deck...where another pair of 100 amp connectors will be installed.
The supercon 100 amp connectors use 5/16" studs on the back end. (The
larger 250 amp version uses 1/2" studs They also come in a 50 amp
version, using 1/4-28 studs......and also a 25 amp version, using 10-32
studs). The power supply is progressing slowly due to time constraints.
Fil voltage will be measured at the cathode terminals....via a small RF
choke in each leg. On new / rebuilt tubes, it's run at rated V for the
1st 200 hrs. Emission increases during the 1st 200 hrs, then levels off.
After 200 hrs, the fil V is reduced by 10 %.... like down to 6.3 vac.
https://www.youtube.com/watch?v=5l4bJ3MCfww
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|