[ARC5] SCR-274N RX NE-9 Bulbs

Tom Lee tomlee at ee.stanford.edu
Wed Oct 12 00:54:06 EDT 2022


As someone pointed out, these kinds of bulbs don't blow. The reason is 
that they are neon (hence the NE part number), not incandescent. No 
filament = nothing to blow.

The usual failure mode is that the bulb fails to light up reliably, or 
even at all, as it ages. The only cure is to replace them.

In the unlit state, a neon bulb appears as an open circuit.

-- Cheers,
Tom

-- 
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
350 Jane Stanford Way
Stanford University
Stanford, CA 94305-4070
http://www-smirc.stanford.edu

On 10/11/2022 16:19, Mark K3MSB wrote:
> When these blow, do they blow open or short?
>
> I'm referring to V1 and V2 on the receivers.
>
> Mark K3MSB
>
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