Looking for Blue Jewel, or Blue Power ON Light

[dinkyguitar]

Hi All,

Not sure if this belongs here, but I have a blue jewel, but when the amp is powered on, it shines white.

Anyone have this issue?

I was trying to see if i could get a blue light bulb to make it blue, but haven't found one yet.

I'm using these.

https://www.mojotone.com/amp-parts/PilotLights_1/1-2-Lens-Assembly-Blue-Jewel

After looking at this picture...is it supposed to turn white when it's powered on?

dinky

[shooter]

go to the hobby store, pick up a small glass of blue paint for models.  enamel, not sure urethane will like the heat 

[sluckey]

Buy one from Hoffman.

[PRR]

Normal incandescent lamps make very little blue. Mostly red. Even with a blue filter they look white.

Convert to blue LED. It can be fed 6.3VAC through a 330 Ohm series resistor, but will flicker if you move your head fast. Two blue LEDs anti-parallel on one 330r will flicker less, and less reverse-stress on the LED. There are cleverer plans but it's only a pilot light.

[DummyLoad]

https://www.ebay.com/c/1031492460?iid=252495546075

--pete

[Latole]

Hi All,

Not sure if this belongs here, but I have a blue jewel, but when the amp is powered on, it shines white.

Anyone have this issue?

I was trying to see if i could get a blue light bulb to make it blue, but haven't found one yet.

I'm using these.

https://www.mojotone.com/amp-parts/PilotLights_1/1-2-Lens-Assembly-Blue-Jewel

After looking at this picture...is it supposed to turn white when it's powered on?

dinky

On the link one picture show you it come white when power ON

[dinkyguitar]

https://www.ebay.com/c/1031492460?iid=252495546075

--pete

Have you tried these?

@Latole
I did see that pic you are referring to....which is why I'm curious if it's supposed to be like that....

But if you're getting a colored jewel, wouldn't you want it to stay that color when powered on?

[Latole]

But if you're getting a colored jewel, wouldn't you want it to stay that color when powered on?

Not realy, IMO color of jewel is not dark enough to stay blue

[mresistor]

Id say Pete's idea of a blue LED inside a blue jewel is worth a try.

[Latole]

Id say Pete's idea of a blue LED inside a blue jewel is worth a try.

You are right.
We don't know how many Lumens this LED. With this led, amp pilot light may not be very bright in daylight

[sluckey]

Does this give you any ideas?

     https://www.bulbtown.com/44B_Blue_Miniature_Bulb_Ba9S_Base_p/44b.htm

[Latole]

Does this give you any ideas?

     https://www.bulbtown.com/44B_Blue_Miniature_Bulb_Ba9S_Base_p/44b.htm

Great !

[DummyLoad]

https://www.ebay.com/c/1031492460?iid=252495546075

--pete

Have you tried these?

yes. they work fine. i used the dialight brand in red, they were more expensive and now not readily available. LED lamps do last longer than an incandescent lamp.

the seller i linked to is reputable - i have purchased from them in the past.


--pete

[dinkyguitar]

Thanks everyone.....

I like the idea of the LED as well as the colored blue....might try both.

dinky

[acheld]

The LEDs work great.  I've used them exclusively now for the past few years in various forms.   

Achieving a rich blue color, however, is not so easy.   I have used Hoffman's blue jewel with several different blue LEDs, and they work fine as pilot lights, just not a rich blue. 

Using a hard wired LED is simple -- you just have to put a current/voltage limiting resistor in series.  This should be in the range of 180-200k @ 20mA, ie a 1/4 watt resistor is fine.   You can buy these pre-made on eBay (like everything else, it seems) very inexpensively. 

If you have a Fender lamp socket installed, there are pre-made LEDs (with the voltage limiter inside) that fit the sockets.  There are several vendors that are selling these -- frankly they are so cheap that you can't go wrong.  I've had vendors ship from China, Hong Kong and the US.   US shipping is the fastest, but they all work. 

[PRR]

> range of 180-200k @ 20mA

Not "k". Just little Ohms.

[Latole]

Original # 47, 6.3 volts incandescent bulb are cheap. I'll buy blue paint in hobby shop ( very very small can ) tp pint the bulb.

Or blue colored cover for your bulb ;

Cover:
https://www.bulbtown.com/Blue_Colored_Bulb_Cover_For_T3_1_4_Bulbs_p/39-12-5a.htm

Bulb
https://www.bulbtown.com/47_Miniature_Bulb_Ba9S_Base_p/b47.htm