Re: Henry 3 k disaster... here's why u need a HV fuse !
ohm 25 all be able to withstand the full anode V. This is why Henry Radio amplifiers need circuit improvements before they are fired up -- sometimes quite literally. ### Point well taken !! I drew it
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pentalab <jim.thomson@...>
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#916
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Re: New Group!
Good to be HERE.
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renn0vati0 <renn0vati0@...>
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#915
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Re: Capacitance
ORIGINAL MESSAGE: wrote: ------------ REPLY FOLLOWS ------------ The plural of typo is typos. Sorry, couldn't resist. :-) Bill, W6WRT
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Bill Turner <dezrat@...>
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#914
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Re: Capacitance
So, is the equation wrong? Jim's answer implies an inverse square equation. -J
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jmltinc
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#913
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Re: Henry 3 k disaster... here's why u need a HV fuse !
Not only that, but the filament transformer must to be able to withstand the full anode V. This is why Henry Radio amplifiers need circuit improvements before they are fired up -- sometimes quite
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R L Measures
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#912
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Re: Capacitance
Correctomundo, Jim. Congrats R L Measures, AG6K, 805.386.3734 r@..., , rlm@..., www.somis.org
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R L Measures
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#911
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Re: Capacitance
Guffaw!! R L Measures, AG6K, 805.386.3734 r@..., , rlm@..., www.somis.org
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R L Measures
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#910
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Re: Capacitance
More taurine feces, John, Cheerz R L Measures, AG6K, 805.386.3734 r@..., , rlm@..., www.somis.org
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R L Measures
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#909
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Henry 3 k disaster... here's why u need a HV fuse !
Gent's Some poor fellow on the 'other' amp reflector smoked the 25 ohm 25 watt wire wound glitch R on his Henry 3K . What was not mentioned was that Henry installs the glitch R in the B-..... NOT the
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pentalab <jim.thomson@...>
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#908
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Re: Capacitance
wrote: used, What's up? ########### Congrat's... u just found ur 1st mistake. If this is orr's latest blue book..... which page is it on ??? I found 38 mistakes in it so far.. mainly typo's.... have
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pentalab <jim.thomson@...>
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#906
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Re: Capacitance
Transceivers , the between them. ### You double the spacing between any two plates... and C drops to just 1/4 of the original. [ V rating doubles]. ### conversely... u reduce the spacing by 1/2 the
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pentalab <jim.thomson@...>
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#905
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Re: TWO TONE TESTING. .... help !
wrote: <zerobeat40@> envelope varies from zero to full pep. So, if your two tones are, say, 3Hz apart, then the power supply is having to feed out current that varies at a 3Hz rate. Not a prob with a
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pentalab <jim.thomson@...>
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#902
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Re: Capacitance
Hey Jim, No, the book is ARRL's VHF/UHF Handbook. The formula is correct, as it is found elsewhere, including Orr's book (p 2-6, 23rd Edition). He includes the term for inclusion of a dielectric. He
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jmltinc
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#907
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Re: TWO TONE TESTING. .... help !
--- In ham_amplifiers@..., "pentalab" <jim.thomson@...> wrote: > > --- In ham_amplifiers@..., "zerobeat40" <zerobeat40@> > wrote: > > ###> The 2 tone test is flawed, and isn't
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zerobeat40 <zerobeat40@...>
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#901
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Capacitors
I wrote: In the VHF/UHF Handbook, chapter Receivers, Transmitters And Transceivers , section, 'Tuned Circuits'; the author writes: "If discs are used, the capacitance varies in a very non-linear
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jmltinc
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#904
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Capacitance
In the VHF/UHF Handbook, chapter Receivers, Transmitters And Transceivers , section, 'Tuned Circuits'; the author writes: "If discs are used, the capacitance varies in a very non-linear manner with
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jmltinc
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#903
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Re: TWO TONE TESTING. .... help !
--- In ham_amplifiers@..., "zerobeat40" <zerobeat40@...> wrote: ###> The 2 tone test is flawed, and isn't used anymore in the > > commercial world. By juggling the spacing of the 2 x
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pentalab <jim.thomson@...>
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#900
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Re: IMD (was 3XYC156)
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R L Measures
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#899
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Re: IMD (was 3XYC156)
wrote: mis- seem to it grid the #### well, I just tried it on one of my 3 x L4B's.... I get ZERO grid current with no drive applied.... whether both 3-500Z's installed... or jus
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pentalab <jim.thomson@...>
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#898
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Re: IMD (was 3XYC156)
Both. but not with a uA meter.
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R L Measures
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#897
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