[TowerTalk] Rotor control line MOV's

[Steven Katz]

They appear to be V10H40P (Littelfuse P/N) MOVs or equivalent, which cost about $0.35/ea.   Capacitor value unknown, but I'd use .01uF/1kV like the Vishay 75-562R5HKMS10RR or similar, which are about $0.70/ea.

-WB2WIK

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of James Gordon Beattie Jr
Sent: Thursday, September 2, 2021 9:45 AM
To: john at kk9a.com; towertalk at contesting.com
Subject: Re: [TowerTalk] Rotor control line MOV's

John,
>From the photos, each lead has an MOV and capacitor in parallel shunted to ground.  The Array Solutions boxes are really nice and convenient, but in a few hours I could fabricate that with a grounding buss bar,  NEMA box and some stainless hardware.

What values would you recommend for the MOV and capacitor?

73,
Gordon Beattie, W2TTT
201.314.6964

Get Outlook for Android<https://aka.ms/ghei36> ________________________________
From: TowerTalk <towertalk-bounces at contesting.com> on behalf of john at kk9a.com <john at kk9a.com>
Sent: Wednesday, August 25, 2021 8:46:58 AM
To: towertalk at contesting.com <towertalk at contesting.com>
Subject: Re: [TowerTalk] Rotor control line MOV's

I have been using these for years:
https://www.arraysolutions.com/surge-and-rf-protection/as-12sp

John KK9A


R. David Eagle kb8nnu wrote:

Im looking to add some surge protection on my rotor control wires and was wondering if anyone has any input as to which ones work the best? Source and part numbers would be appreciated!
Thanks,
DaveKB8NNU

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