looking for replacement for Ampeg Gemini pwr indicator lamp

[pula58]

I am working on a mid 1960's Ampeg Gemini G12. The power indicator lamp is blown. It is powered from 120V DC (yep, DC). It fits in a 1/2" hole on the front of the chassis.

1) Does anyone know where I can get a replacement part (I know this is a long shot)

--- or ---

2) Anyone know of an alternative lamp fixture I can mount in a 1/2" hole (since the amp is vintage I do not want to enlarge the hole).

Any help apprecited!

P.

[Dr-Joned]

From the schematic I have seen, the indicator is a 120 vac lamp. It is tied across the primary of the power transformer. I would think that mouser or Allied would have something very similar.


EDIT http://drtube.com/schematics/ampeg/g12-jp.gif

[pula58]

thanks...but..the version of the Gemini that I have looks like this:

http://www.el34world.com/charts/Schemat ... eg_G12.pdf

See how the indicator bulb/lamp is connected to the DC power supply? **
** see power supply node labeled "H".

I could extend the heater wires to bring them to the bulb. So I was thinking that if I could find a lamp fixture that needs a 1/2" chassis hole, and could find a 6.3V bulb that could be mounted in the socket I'd be good.

[M Fowler]

What does the pilot light look like? 120vdc verses 120vac what's the difference?

www.turretboards.com has lots of pilot choices.

Mark

[pula58]

Unbelievably I may have stumbled onto what I need. A website that sells parts for vinatge ampeg amplifiers:

http://www.fliptops.net/catalog/product ... cts_id=394

Isn't the internet amazing!

I'll let you guys know what I find out.......

[rdjones]

It's probably just an NE2H neon bulb.
Can you get the bulb out ?
Is the 270k dropping resistor OK ?

rd

[Luthierwnc]

Pula58,

Fliptops is a great place to do business. The one caveat is that the replacement trem bug they sell is for the Gemini II or VI. The Gemini I uses a little square one with different electronic specs. Be sure to ask if you need to replace it. sh

[M Fowler]

Flipflop sells everything but the chassis where do you get the chassis?