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Re: NOS cermic-metal tube burn in
What is the screen PS V? What is the anode PS V? What Class? R L Measures, AG6K, 805.386.3734 r@..., rlm@..., www.somis.org
By R L Measures · #1037 ·
Re: Inrush filament current protection
My building inspector did not want the ground wire in the meter socket. I ran conduit off the breaker panel to the rods. I also ran #4 over to the water main both sides of the meter. Then I showed him
By FRANCIS CARCIA <carcia@...> · #1036 ·
Re: Inrush filament current protection
By Robert B. Bonner <rbonner@...> · #1035 ·
Re: 3-500Z socket.... Johnson vs Eimac
Rich, it says 0.082" at sea level and 500W dissipation 73 Peter
By Peter Voelpel <df3kv@...> · #1034 ·
Re: Inrush filament current protection
210-250v depends on the utility company... My experience and I am not certified.... read any basic book on it..... I have done most of the wiring around my house.. a well and the pool and the 24x30
By KR4DA <kr4da@...> · #1033 ·
Re: 3-500Z socket.... Johnson vs Eimac
The Eimac spec sheet says 0.82" at sea level. Opinions count way less than manometer measurements.
By R L Measures · #1032 ·
Re: "Father Measures"
Hardly, Jim. I know too much about history to ever join any organized religion. cheers R L Measures, AG6K, 805.386.3734 r@..., rlm@..., www.somis.org
By R L Measures · #1031 ·
Re: Inrush filament current protection
Is not 240v standard in the United States? If they connect together in the breaker box, is this really safe? ... ... > R L Measures, AG6K, 805.386.3734 r@..., rlm@..., www.somis.or
By R L Measures · #1029 ·
NOS cermic-metal tube burn in
Hi, There are two Chinese FU-251F(4CX250B) cermic-metal tubes, they are new but storge for very long time. The output power only 200-250W( a pair), Could someone cal tell me how to solve this
By Hsu <Jbenson@...> · #1030 ·
Re: Inrush filament current protection
Jim, I know several years ago a friend sent me some copies of the posts on AMPS when I wasn't a member. There were comments rather heated regarding POWER SERVICES and AC wiring to amps. I will end
By Robert B. Bonner <rbonner@...> · #1028 ·
Re: "Father Measures"
make a good priest. Maybe they were joking?... ### I can just see it now.... "Father Measures" ... up on the mound.. preaching a fire and brimstone lecture about..."parasitic hell"....to us globar
By pentalab <jim.thomson@...> · #1027 ·
Results of removing grid fuse + cathode fuse
OK, here's the deal. I had my buddy with the 3x6 remove the fast 750 ma grid fuse from the 3agc fuse holder... then try and apply 800w of drive. INPUT SWR on the big amp goes sky high.... and then the
By pentalab <jim.thomson@...> · #1026 ·
Re: Can a ..power factor correction cap be used on the input of a Plate Xfmr ??
### Yes.. pse do. It would be much appreciated as I have hit a dead end here. That value though seems way to much at 35 uF for this. Placed across the primary leads, it will start looking like a short
By pentalab <jim.thomson@...> · #1025 ·
Re: ARRL - Political - was: Filament Voltage regulator
In West Hollywood, this would be considered a perquisite. Correct, Frank, which is why they adopted the priestly vow of not to do women 9-centuries ago. Right, and Bernard Law gets an allowance of c.
By R L Measures · #1024 ·
Re: 3-500Z socket.... Johnson vs Eimac
requires a high-pressure centrifugal blower, and Ham amps used an ordinary centrifugal blower. pressure. RICH SEZ... Correct, but Eimac's 0.82" water column spec is the pressure differential across
By pentalab <jim.thomson@...> · #1023 ·
Re: 3-500Z socket.... max current ratings
wrote: them XX% design, filters, manufacturers
By pentalab <jim.thomson@...> · #1022 ·
Re: Inrush filament current protection
<rbonner@...> wrote: RIGHT NOW that had me thinking the same thing. ### huh ? AS long as you have a relay/contactor/ ckt breaker that opens OFF BOTH sides of the 240v line... anything beyond that is a
By pentalab <jim.thomson@...> · #1021 ·
Re: ARRL - Political - was: Filament Voltage regulator
My next door neighbor growing up wanted to be a priest. In the late 60s he spent 3 years going to school then all of a sudden dropped out. I asked him why he changed his mind a couple years later. He
By FRANCIS CARCIA <carcia@...> · #1020 ·
Re: Inrush filament current protection
For the life of me, I can't figure out why you would need one for each line lead? If the voltage drops, the current rises making the same output power from the transformer. The same amount of power
By craxd <craxd@...> · #1019 ·
Re: Can a ..power factor correction cap be used on the input of a Plate Xfmr ??
Jim, I've seen these used, but they were used in smaller DC supplies. I have several books on the subject and will look it up. That value though seems way to much at 35 uF for this. Placed across the
By craxd <craxd@...> · #1018 ·