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johnbright
Joined: 14 Dec 2011
Posts: 165
Location: Newport News, VA
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 Posted: Tue May 05, 2020 5:06 pm Post subject: OV push to test button, is there a hack for SB1B |
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Hi Bob,
Seems like a nice feature that SB1B has an annunciatior light that it has come online but unlike LR3C there is not an OV PTT... is there a way to hack into SB1B for an OV PTT button?
Thanks
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_________________
John Bright, RV-6A, at FWF, O-360
Z-101 single batt dual alt SDS EM-5-F.
john_s_bright@yahoo.com, Newport News, Va
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kenryan
Joined: 20 Oct 2009
Posts: 426
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| Posted: Wed May 06, 2020 2:06 pm Post subject: OV push to test button, is there a hack for SB1B |
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Bob, you say "they worked good and lasted a long time." What was the eventual failure mode? How did one know when they did fail?
On Wed, May 6, 2020 at 12:42 PM Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
| Quote: | | Quote: | If you never tested the thing, you risk for
failure to perform is exceedingly low. |
A follow up: I've worked on dozens of
TC aircraft. I forget how many products
I've designed and qualified into OV
management systems. Not one has ever
included or required a press-to-test
feature.
The very first OV management module I designed
went into the single engine Cessnas back
in the 70's. This was a three-wire potted
assembly that was ultimately manufactured
by the tens of thousands. Worked good, lasted
a long time.
Bob . . .
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