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

[Christopher Bowne]

The ones sold at Home Depot generally will work in most any two cell flashlight using the “standard” 3V flashlight bulb type.

Sent from my iPhone

> On Jan 4, 2023, at 08:29, Christopher Bowne <aj1g at sbcglobal.net> wrote:
> 
> 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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>>