9090DB bulbs

[jblmar]

Anyone know the rating of the PHONO, AM, FM, AUX bulbs for the 9090DB?
They are the small bulbs housed in white plastic that push into their respective mounts on the plastic panel assembly.
The SM doesn't list their rating.

 

[avionic]

7 volt @ 100ma ... Its printed on the schematic.

 

[dgwojo]

7 volt @ 100ma ... Its printed on the schematic.

Are those 3mm, 4mm or 5mm in diameter?? :scratch2:

 

[avionic]

Are those 3mm, 4mm or 5mm in diameter?? :scratch2:

Yes...



They look to be about 5mm X 3mm dia.

 

[LBPete]

I believe they are 4mm. They are a little larger then the dial pointer or power meter lamps.

- Pete

 

[Sir.Byrd]

Yes...



They look to be about 5mm X 3mm dia.

I believe they are 4mm. They are a little larger then the dial pointer or power meter lamps.

- Pete

I guess we'll never know.

 

[avionic]

I guess we'll never know.

Guess I need to get a new metric rule..

 

[LBPete]

Come to think of it, I replace them with 4.7mm LEDs so they are actually closer to 5mm than 4mm.

- Pete

 

[pogo99]

Pete,

Can you provide further detail on where you source LED replacements? I have a 7070 with mutiple dead bulbs and would like to replace with LED's across the display.

Larry

 

[LBPete]

Before you replace the bulbs, be sure that they have power. Put an AC volt meter across them except for the FM stereo light. That one is DC.

The source I've used for LEDs has gone belly up. I used 4.8mm flat tops with as wide a dispersion angle as you can find. Use white ones not "warm" white.

- Pete