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Author Topic: Noisy roller inductor  (Read 1530 times)
W5KG
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Posts: 79




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« on: March 15, 2013, 07:29:51 AM »

I build a lot of my owr stuff. Tuners, Amps, and such. What I need to know is what is a good lubricant for inductors and ver. caps that will not effect them electrically? I have a noisy inductor (machanically).
Thanks'
Don, W5KG
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KA4POL
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Posts: 2033




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« Reply #1 on: March 15, 2013, 07:34:30 AM »

I use Ballistol.
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K6AER
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Posts: 3525




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« Reply #2 on: March 15, 2013, 08:05:52 AM »

The problem with any lubricant is it attracts dust.  On roller inductors I keep the contact area as clean as possible. Sometimes you might need to polish the inside contact area. This can also be a problem if the contact area has been silver polished.

Working on a roller inductor is like working on a watch.
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N4CR
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Posts: 1672




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« Reply #3 on: March 15, 2013, 10:55:33 AM »

Clean the moving parts as best you can. If there is a finger on a ball bearing on the end of one of them, there is conductive grease for that.

http://www.mgchemicals.com/products/greases-and-lubricants/conductive-greases/carbon-conductive-grease-846/

I clean the wheel and the shaft on the roller inductor with alcohol and then put a drop of MMO on it. That has to be redone about once a year.

I haven't tried the grease on the shaft and wheel. It might be just the ticket.
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73 de N4CR, Phil

We are Coulomb of Borg. Resistance is futile. Voltage, on the other hand, has potential.
K0CWO
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Posts: 419




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« Reply #4 on: March 15, 2013, 12:17:20 PM »

I use GC Electronics Tunerlub Part No. 10-2610
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WX2S
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Posts: 735




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« Reply #5 on: March 16, 2013, 03:57:08 AM »

Just an idle thought. I wonder why they don't put the whole mechanism in vacuum? it's technically possible now with stepper motors.

73,
Wx2s.
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73, - Steve WX2S.
I subscribe to the DX Code of Conduct. http://dx-code.org/
G3RZP
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Posts: 4726




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« Reply #6 on: March 16, 2013, 04:17:48 PM »

Simple answer. Cost.
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W5KG
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Posts: 79




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« Reply #7 on: March 30, 2013, 07:00:56 AM »

Thanks to eveyone for the info.  Grin
Don, W5KG
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