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with capacitive the ### Will... re-read his post. He used a JENNINGS brand HI-POT tester... not brand .."X" I remember reading in the old Jennings engineering application section... that it was

For checking vacuum caps, you really need HV DC to test them with since that's really what they'll be blocking. I'm not familiar with that brand Hipot, but that sounds like the control is for

Jason, I hate to even write this as some joker working with the NEC might take it to heart and have it done, LOL! Anyhow, I have seen times when I did wish a cable did have two bare grounds in it, and

See link below for more details regarding new 2007 NEC wiring amendments: http://n1su.com/tubes/NEC-7-conductor.jpg -- 73 Jason N1SU http://n1su.com/

I enjoyed reading all through this one to see what all the little comments were. I think by all of us comparing notes and adding to each other's knowledge base and laying it out here maybe only 13

Past days I was able to try a Jennings HiPot tester with some vacuum capacitors (all 250 pF, 30 KV; some were Jennings, China made, with ceramic bodies, others of another USA brand which I do not

wrote: posts to

When I worked as an industrial electrician for several years after I moved up here, we had them several places within the plant. However, they were all on circuits that had several motors running. The

wrote: the different

<rbonner@...> wrote: on AMPS regarding POWER ### yes.. that was cheap entertainment... happens every 4 yrs on 'AMPS'. pass me experiences errors. by a common ### agreed. ### I'm not.. but gotta work

Guys, My first job out of my undergrad program was with a building automation (energy) company. We installed PFC caps on buildings all over the place. At that time I wasn't the engineer doing this,

I looked through about every book I have on transformers and power supplies, and never found anything about using a cap for power factor correction. There's plenty about using a cap with an AC motor,

wrote: if used as grounds together. insulation main ### This is correct. Only SUB-panel's are wired for separate grnd/neutral buss's.... via the shorting strap. I installed a 100 A sub panel... and

Hi- I have some NOS TV transmiting tubes FS, FU-720F( Same as 7F71RA),tetrode, Palate dissipation: 3500W filament:4V/78A I ask $500/ea. I can pay the shipping cost(surface mail). JPG and detail specs

a 2.7KHz mechanical filter -- i. e., one that was wide enough to pass a humanoid male voice with minimal loss of lows. Later Collins transmitters used a 2.4KHz filter, which is wide enough for female

Jer: With the aforementioned cooling air-pressure, RTTY would require that the anode PS potential be reduced to c. half of that for SSB. This is semi-easy if the HV-PS is FWD/FWB switchable.

Rich, using a 8171, what specs would you recommend for a mode such as rtty? Jer

Yes, I built an 8170 amplifier, however, the 8171 is the same tube inside but it has a more efficient anode cooler which works ok with a 1700rpm blower instead of a 3400rpm one. Greg -- An 8170 at