Hitachi SR-304 Dial Lamps

[Manitoulin]

Good day.

Anyone have the schematic, or specs or the dial lamps for a Hitachi SR-304 dial lamps?

Not your normal bulb; they are fuse sized, but have pigtals.

Thanks,
Joe

 

[dgwojo]

Maybe 12v/250ma meter lamps? :scratch2:

PS - CAREFULLY get an AC voltage reading to be sure!!

 

[Manitoulin]

Maybe 12v/250ma meter lamps? :scratch2:

PS - CAREFULLY get an AC voltage reading to be sure!!

Thanks for the advice.

Problem is no-load AC voltage readings when all dial lamps are out can be OTL, to say the least. Also, because this unit has a green plastic "cover", the correct current rating will be important, so I do not melt the plastic.

 

[dgwojo]

Thanks for the advice.

Problem is no-load AC voltage readings when all dial lamps are out can be OTL, to say the least. Also, because this unit has a green plastic "cover", the correct current rating will be important, so I do not melt the plastic.

I usually only have no-load problems with FM stereo indicators, Dave.

 

[Manitoulin]

Measured 6 VAC at the input to the board, so, most likely there are 6V bulbs. Now, where can I find fuse sized bulbs with wire leads????

 

[dgwojo]

I'd go with 6.3v/100ma or 6.3v/250ma, a working lamp would need an amperage reading in series with it to determine what the actual existing ones are, both ratings are readily available, 250ma is probably a better choice when going through tints, Dave. :yes:

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[Manitoulin]

Thanks.

None are working, so I am stuck for current rating.

Any idea where to source them?

Joe