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Help needed with amp power indicator bulb
Posted: Mon Jul 04, 2022 5:40 pm
by Tiga
The bulb in this Fender Princeton 65 SS is out. It doesn't look like the bulb is removable or is it? Do I have to source the whole bulb/harness assembly? Thanks for any help!
Re: Help needed with amp power indicator bulb
Posted: Wed Jul 06, 2022 1:27 pm
by jtcnj
Hard to tell from pics, does the wire and socket maybe push out from the plastic bracket?
Re: Help needed with amp power indicator bulb
Posted: Wed Jul 06, 2022 1:39 pm
by mickey
Measure the voltage & replace it with an LED & resistor in series (size of resistor depends on voltage) either AC or DC supply will work. It will last as long as the amp.
Re: Help needed with amp power indicator bulb
Posted: Wed Jul 06, 2022 2:28 pm
by glasshand
It looks to me like it already is an LED, although I could be wrong. It's rare for LEDs to die, but I suppose it's not impossible.
Re: Help needed with amp power indicator bulb
Posted: Fri Jul 08, 2022 12:46 pm
by Tiga
Well I pushed on the bulb a bit and now it's working. Not sure if it just wasn't seated correctly or what. I guess we'll see how long it lasts.
Re: Help needed with amp power indicator bulb
Posted: Mon Aug 01, 2022 12:37 pm
by andrewsrea
According to the schematic, it is a T-47 'bayonet' type bulb. These are the typic Fender indicator blulb and are notorious for needing to be 'nudged' to make contact. They are pressure fit by a spring and held in place by two nubs and corrode in that position. Moving them around and reseating them usually fixes them, although I have one with an old 60's socket that I constantly need to rap the top of to get it back on.
To replace: push in, turn it left and it should pop out. To install one: push in, turn right until it stops and let it pop up into place. Easy-peasy.