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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Motor\s+drives\s+for\s+vacuum\s+caps\s*$/: 6 ]

Total 6 documents matching your query.

1. [TowerTalk] Motor drives for vacuum caps (score: 1)
Author: K7FL@arrl.net (Dennis Ashworth)
Date: Sat Jul 26 12:14:31 2003
Has anyone discovered a reliable scheme for remote adjustment of vacuum variables? I have two antennas with vacuum variables at the base and would very much like to tweak them from the shack. I'd nee
/archives//html/Towertalk/2003-07/msg00414.html (7,334 bytes)

2. [TowerTalk] Motor drives for vacuum caps (score: 1)
Author: jimlux@earthlink.net (Jim Lux)
Date: Sat Jul 26 13:11:46 2003
what sort of adjustment speed do you need. A 8 or 16 pulse per rev disk and an optical encoder driving a suitable low impedance device (open collector type scheme) or even 8 magnets and a reed switch
/archives//html/Towertalk/2003-07/msg00419.html (9,212 bytes)

3. [TowerTalk] Motor drives for vacuum caps (score: 1)
Author: on4kj@skynet.be (on4kj)
Date: Sat Jul 26 13:17:57 2003
Dennis, What should you think using some old stepper motors from shugar 7 inch FD we called that the washing machines. That old stuff is very reliable but need some hard and soft adaption The way I s
/archives//html/Towertalk/2003-07/msg00420.html (8,688 bytes)

4. [TowerTalk] Motor drives for vacuum caps (score: 1)
Author: sentek@sprintmail.com (Floyd Sense)
Date: Sat Jul 26 13:35:24 2003
Yes. I bought some gearhead motors from All Electronics (www.allelectronics.com). You can buy one to provide the rotational speed you need directly, or you can gear them up or down further with inexp
/archives//html/Towertalk/2003-07/msg00421.html (10,627 bytes)

5. [TowerTalk] Motor drives for vacuum caps (score: 1)
Author: k4oj@tampabay.rr.com (Jim White, K4OJ)
Date: Sat Jul 26 22:04:01 2003
...a week ago I would have pointed you to some that were on eBay - but that was then! GL Jim, K4OJ
/archives//html/Towertalk/2003-07/msg00426.html (8,389 bytes)

6. [TowerTalk] Motor drives for vacuum caps (score: 1)
Author: k4oj@tampabay.rr.com (Jim White, K4OJ)
Date: Sat Jul 26 22:16:28 2003
Ya know... I think someone has already solved this problem... A few years back someone did this with mobile antennas - "screwdrivers" - because they used the guts of an electronic screwdriver... do n
/archives//html/Towertalk/2003-07/msg00427.html (7,267 bytes)


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