Can Anyone Help me wire up db Meter lamp on 1150D amp?

[prophetk]

Hi All
I inherited an 1150 D integrated amplifier circ 1976 from my late father who more or less took good care of it til he accidentally got it waterlogged in the basement flood back in 79' but that's another story entirely.
Luckily enough, he let it dry out & got it professionally tended to by a local technician and brought it back to Life.
Fast Forward til a year ago, I turned it on one day and the vertical, db wattage, meter indicator in the center [ Best way I can describe what I think it is] burned out.
I had the amp cleaned by a technician & replaced some other lamps and he gave me a snipped off, wired lamp that was burnt out which I believe is this particular db meter indicator lamp.
Query: Ive researched & narrowed down to the exact part being a : bi-pin, 8v 20a wired incandescent lamp bulb or LED equivalent {?}
Am I supposed to attach this in series with the power lead+?
I don't want to short out and ruin anything.
Any guidance would be so greatly appreciated very much so!
Kind
Ken K
Des Plaines IL

 

[jdwilker]

I just found this thread because I had the same problem with my 1150D. I was able to fix it with two 8v, 20ma LEDs I got on ebay. To do this I had to:
-Remove the faceplate.
-Remove two screws on a small retaining plate holding the meter in place.
-By bending in the wires and a capacitor on the meter, I was able to pull it out the front.
-There is a small brown mounting board that is slid into the meter housing that can be carefully pulled out. There should be two small lamps soldered to this board.
-After cutting off the two old lamps, I soldered in the two new LEDs which I prepared by cutting the leads very short to fit into this space. On my LEDs, one lead had a heat shrunk lump on one side which you want to leave (it's a small resistor). It takes some work to trim and fit this into place, but even with my big fingers, I was able to do it without much trouble.
-I used this same LED to replace the power light directly above the meter.
-Power up the amp and make sure everything is working OK before reassembly.

To make this all a little easier, I removed the dolby board assembly located directly behind the meter. Remove two screws and the boards unplug from the chassis. This wasn't too hard and now it's nice to actually see that meter in action.

 

[jdwilker]

One thing I forgot to mention. These LEDs are light directional, by that I mean the light is typically focused straight out the tip. Since you want to illuminate the entire meter, it's best if the light is diffused somehow. I did this by using some fine sand paper and carefully sanding the entire bulb so that it appears frosted. Then when it's turned on it glows more evenly.