Re: Vernier drive
I have always used thick axle grease when re-lubing them. They DO need some friction to work properly. In any case, it should never be as hard to turn as opening a 2 l bottle. Even the Jackson Drives
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Steve Wedge, W1ES/4
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#75792
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Re: K4DPK VFO Stabilizer
Finished the VFO stabilizer's half-wave PS today.? Image below. Not much room in the underside of the TR-4Cw to shoehorn in the new components.? For connections, a 6-lug terminal strip was added to
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Paul Christensen
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#75791
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Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
Two places to look: See MODS.DK They have manuals from many pieces of ham stuff; radios, accessories, and antennas. Also, the Yahoo groups TOWERTALK may be a good source for antenna info. Just FYI
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Tony Yamin
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#75790
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Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
Good to know. ?Thank you, Jim. 73, Michael, N4KZO
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Michael Smith
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#75789
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Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
Knowing what alloy and what the various diameters of the tubing that make up the eles and also the boom, and also the wall thickness, and also including any double or tripled walled sections ...then
By
Jim VE7RF
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#75788
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Re: Vernier drive
CAREFUL! I don't know about lubing these. I have on my SB-220 those drives on the plate and load caps. NICE. But the Plate cap one was really stiff. Those drives were surplus in the 70's when
By
Joe WB9SBD <nss@...>
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#75787
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Re: Vernier drive
Jackson Brothers (UK) mfg and sold by Mainline Electronics makes friction type planetary reduction drives using balls for the planets STIFF or DRY Vernier Controls are usually due to dried grease.
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Greg W9GB
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#75786
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Edited
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Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
So, a wench is a girl that serves drinks. ?I meant to type winch. 73, Michael, N4KZO
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Michael Smith
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#75785
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Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
Wench not wrench. 73, Michael, N4KZO
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Michael Smith
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#75784
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Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
That tilt-over with a wrench, well, make sure the person doing it is strong like bull..
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Evan
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#75783
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Re: RV75 Issues
Just go slowly and be careful. You will also want to take some ESD precautions. Take pictures of everything before you take is apart. 73 -Jim NU0C "Rick K8EZB" <frboswell@...> wrote: -- 73 -Jim
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Jim Shorney
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#75782
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Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
Hello Rob, Good to hear from you. ?I sense a 50 foot tower, non-guyed, would serve me for antenna performance and ease of use. ?I prefer not to climb, so a crank-up of some kind would be best to
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Michael Smith
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#75781
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Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
Bill, M2 did not have any information on this legacy antenna, but this was a reasonable try. ?I had a response via qth.com with wind load information, but not survival wind speed. Thank you for the
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Michael Smith
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#75780
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Vernier drive
I'm thinking about going ahead and replacing the vernier drive for the plate cap on my L-4B.? I got a pointer from Max-Gain for the vernier.? The new vernier seems a bit tight to me, but I've only
By
Stan Gammons
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#75779
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Re: RV75 Issues
Jim, Thanks for the cap info. Will get an orrder in shortly. Want to do some in-circuit testing first. I am beginning to think I might actually be able to do this! Best, RB
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Rick K8EZB
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#75778
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Re: RV75 Issues
This is the list from my Mouser project file. Note: I usually order extras beyond what I need, especially if I am near a price break. I am also attaching my log of measured values of the old caps if
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Jim Shorney
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#75777
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Re: Outer Coaxial Jacket Removal for a Long Length
That's basically what I said. All that is needed for a vertical "dipole" is a quarter wavelength of wire and a common mode choke a quarter wavelength back down the shield. The outside of the coax
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Jim Shorney
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#75776
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Re: Outer Coaxial Jacket Removal for a Long Length
Michael, You could put a clamp-on choke 1/4-wave down the coax, coil the coax up at that point as a choke, or just slide a 1/4-wave piece of copper tubing over the coax and solder the braid to it. 73,
By
rls19
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#75775
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Re: RV75 Issues
Which Jim? :D Well, if he would quit using the Steve font.... 73 -James "Rick K8EZB" <frboswell@...> wrote: -- 73 -Jim NU0C
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Jim Shorney
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#75774
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Re: RV75 Issues
I do have a list. I'll see if I can dig it up for you a bit later. "Rick K8EZB" <frboswell@...> wrote: -- 73 -Jim NU0C
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Jim Shorney
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#75773
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