[MRCA] MX-991\U “Moonbeam” Flashlight Flicker

Christopher Bowne aj1g at sbcglobal.net
Wed Jan 4 08:28:51 EST 2023


Just the bulbs, they are drop in plug and play replacements!

Sent from my iPhone

> On Jan 4, 2023, at 08:27, comcast <kg2bz at comcast.net> wrote:
> 
> what parts are needed to do the led conversion?  jeff
> 
> Sent from my iPhone
> 
>> On Jan 4, 2023, at 7:56 AM, Christopher Bowne <aj1g at sbcglobal.net> wrote:
>> 
>> Yes doing the LED bulb conversion really
>> makes them shine!  I’ve been using the ones sold at Home Depot, think they were about 10 bucks last time I bought some.  If you want a really bright portable LED light, the Ryobi 18V battery tool line’s  spotlight is hard to beat.  Seven small parabolic reflected LEDs focused on a single large parabolic backplane.  Wonder how far a pair of them used as Morse signal lamps could work!
>> 
>> Sent from my iPhone
>> 
>>>> On Jan 4, 2023, at 06:09, Anthony Clare <n3kcb at usa.net> wrote:
>>> 
>>> I have had more trouble with the switch portion than anything else. Of course,
>>> you cannot get into the switch. 
>>> 
>>> I like to spray a bunch of de-oxit around the switch so that it can flow into
>>> the switch assembly and then exercise the switch a bit. That seems to take
>>> care of any problems I have.
>>> 
>>> I also upgraded to led bulbs. They are super bright now.
>>> 
>>> ------ Original Message ------
>>> Received: Tue, 03 Jan 2023 10:20:54 PM EST
>>> From: Christopher Bowne <aj1g at sbcglobal.net>
>>> To: mrca at mailman.qth.net
>>> Subject: [MRCA] MX-991\U “Moonbeam” Flashlight Flicker
>>> 
>>> Just wondering if anyone on the reflector has any suggestions on curing the
>>> more than annoying propensity of the classic military 90 degree angle head
>>> flash lights to go into flicker mode, almost every one of them
>>> I’ve ever had or currently have will often go intermittent.  I’ve taken
>>> them apart, cleaned and adjusted the contact spring and spring tabs.  Most
>>> will work ok for a little while but then go intermittent again, typically
>>> while outside on a dark night.  Short of soldering in jumper wires and
>>> connectors around the spring tab contacts, any other ideas?  It seems to me
>>> that the weakest and moist troublesome link is the spring tab that contacts
>>> the back side of the reflector bowl.
>>> I tried a general Google this subject, didn’t find much, did find someone
>>> ask the same question on what appeared to be a flashlight forum, but there
>>> were no replies.
>>> 
>>> 73 de Chris AJ1G Stonington CT
>>> 
>>> 
>>> 
>>> Sent from my iPhone
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