Subnormyle
New Member
First off I apologize if I should have posted this in the DIY Section, I debated with myself and chose to post it here.
Moved to Oklahoma in 1995 and a friends dad had a pair of Norman Labs Model 10. I fell in love and vowed to own a pair one day. They were built less than 10 Miles from the first house I lived in when I moved here, In fact I will be driving past the factory they were built in tomorrow morning on the way to work.
Well last weekend I finally picked up a set of what i believe are late 70s Model 9s. Part nostalgia and part saving a local legend. The cabs are a little bit rough but not bad at all. They have the paper cones with rubber surrounds. They sound fantastic and played great the first day I had them home. Second day I started having issues with the breakers. Read on here a bit and decided to temporarily bypass the breakers by stripping the jacket off some old speaker wire, wrapping it around the breaker terminals and twisting it tight. I'm sure some won't approve but like I said its just temporary.
I plan on freshening them up a bit but have a few questions.
1. Has anyone used the automatic reset speaker circuit breakers from Parts Express? Would these be OK to add internally in place of the push button breaker. I want to leave the push button installed but disconnected. Specifically I'm looking at the 2.0A 150W units. I read in an old thread here the breakers were rated at 2.0A.
2. I am a little confused on what Caps to buy to replace the originals. There are 2 caps in each speaker. The large cap reads 15uF-75VAC, and the second cap which is about a quarter its size reads 15UF100VNP. Now are both of these caps the same value? can I just get 2 15uF Solen caps to replace them?
3. Should I replace the light bulbs in the tweeter protection circuit? They do not light up while the speaker is playing. Is there enough voltage that they should light up, or would they be so dim i wouldn't be able to tell. I haven't grabbed by multimeter to check them yet but I almost feel replacing a 30+ year old light bulb is a good idea.
Thanks a lot guys, I would appreciate and input or advice you are willing to provide. Here are a few pics of the 9s.
Moved to Oklahoma in 1995 and a friends dad had a pair of Norman Labs Model 10. I fell in love and vowed to own a pair one day. They were built less than 10 Miles from the first house I lived in when I moved here, In fact I will be driving past the factory they were built in tomorrow morning on the way to work.
Well last weekend I finally picked up a set of what i believe are late 70s Model 9s. Part nostalgia and part saving a local legend. The cabs are a little bit rough but not bad at all. They have the paper cones with rubber surrounds. They sound fantastic and played great the first day I had them home. Second day I started having issues with the breakers. Read on here a bit and decided to temporarily bypass the breakers by stripping the jacket off some old speaker wire, wrapping it around the breaker terminals and twisting it tight. I'm sure some won't approve but like I said its just temporary.
I plan on freshening them up a bit but have a few questions.
1. Has anyone used the automatic reset speaker circuit breakers from Parts Express? Would these be OK to add internally in place of the push button breaker. I want to leave the push button installed but disconnected. Specifically I'm looking at the 2.0A 150W units. I read in an old thread here the breakers were rated at 2.0A.
2. I am a little confused on what Caps to buy to replace the originals. There are 2 caps in each speaker. The large cap reads 15uF-75VAC, and the second cap which is about a quarter its size reads 15UF100VNP. Now are both of these caps the same value? can I just get 2 15uF Solen caps to replace them?
3. Should I replace the light bulbs in the tweeter protection circuit? They do not light up while the speaker is playing. Is there enough voltage that they should light up, or would they be so dim i wouldn't be able to tell. I haven't grabbed by multimeter to check them yet but I almost feel replacing a 30+ year old light bulb is a good idea.
Thanks a lot guys, I would appreciate and input or advice you are willing to provide. Here are a few pics of the 9s.