LNFB loop switch

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Luthierwnc
Posts: 998
Joined: Sat Feb 18, 2006 10:59 am
Location: Asheville, NC

LNFB loop switch

Post by Luthierwnc »

Hi Guys;

I'm building an '80's 50 watter and had this idea for a LNFB switch. There are two series switches in the circuit. The first is a back panel on-off-on mini. The pole is tied to the junction of the 22m resistors. One throw is grounded to disable the loop. The center position keeps it stock. The other throw goes to a relay in parallel (power and grounding-wise) with the OD relay. On the relay switch, ground is the normally open position.

This way, I can turn it on, turn it off or just use it when the OD is kicked in. I already had the mini. I got it to do the 22m, 44m or n/c option but this seems more versatile.

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greiswig
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Joined: Wed Jun 20, 2007 8:19 pm
Location: Oregon

Re: LNFB loop switch

Post by greiswig »

Yup...if I weren't already using that other half of the OD relay to disable the Bright feature in OD, I'd be doing the same thing. As it is, I'm looking for a way to gracefully mount another relay in there to do this.
-g
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Luthierwnc
Posts: 998
Joined: Sat Feb 18, 2006 10:59 am
Location: Asheville, NC

Re: LNFB loop switch

Post by Luthierwnc »

This is a completely separate relay so one half isn't being used. This one has the same ground as the OD so they switch simultaneously. sh
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