ART MPA Gold preamp VU meter bulbs???

markophonic · 18th September 2011

I need a bulb for the VU meters on my preamp. It is a fuse type bulb but I can't find any info on the specs of the bulb...no markings on the bulbs that are in there now. Anyone one know what bulb this takes and where I can find some? Thanks! Mark

Mixermend · 18th September 2011

If ART cannot help with the lamp specification - measure the voltage present across the lamp and take it from there.......

Do consider an LED conversion - there is plenty of information available on the Web regarding the most appropriate types to use - they can look really good, don't generate heat that can damage plastic meter mouldings - and will last a very long time!

Old Goat · 18th September 2011

If a schemo will help you...

http://www.harmoniccycle.com/hc/imag...-schematic.pdf

LeeYoo · 19th September 2011

Going from the schemo, I would guess 12volt, 100mA. (-15volt+27ohm resistor)

markophonic · 21st September 2011

I ordered some bulbs from a couple different dealers that were mentioned in similar threads.

I've got some coming from AudioMaintenance.com, had to have a minimum order of $25.00 USD. these were listed as 12v 1.2 watt and the bulb size seemed right. These apparantley worked for someone else...we'll see...

and some from Vintage electronics, these are 12v 150ma and look like the right size.

I am going to consider the LED conversion.

Thanks for the schematic!

LeeYoo · 21st September 2011

12volt 1.2watt = 100mA..

150mA bulbs will make the light "warmer", because of more volt-drop over the 27ohm series resistor.

markophonic · 21st September 2011

Quote:

Originally Posted by LeeYoo

12volt 1.2watt = 100mA..

150mA bulbs will make the light "warmer", because of more volt-drop over the 27ohm series resistor.

Thanks LeeYoo, You made my day!

markophonic · 21st September 2011

I just received an email from ART. They said that they will send me a few bulbs...FREE no shipping charges or anything! Two thumbs up for their customer service. Too bad I've already shelled out about $35.00 to get some bulbs from a couple of electronics vendors... Well at least I'll have a bunch of spares... So if someone stumbles upon this thread because you are trying to find some bulbs I may have a few to sell.

s.d.finley · 22nd September 2011

Quote:

Originally Posted by markophonic

I just received an email from ART. They said that they will send me a few bulbs...FREE no shipping charges or anything! Two thumbs up for their customer service. Too bad I've already shelled out about $35.00 to get some bulbs from a couple of electronics vendors... Well at least I'll have a bunch of spares... So if someone stumbles upon this thread because you are trying to find some bulbs I may have a few to sell.

ART sent me some bulbs for my pro VLA. They are nice guys!

markophonic · 25th September 2011

A little customer service goes a long way with me. I have had issues with other companies that weren't satisfactory. They sent me 2 bulbs for free. Couldn't be happier!

Studio192 · 24th January 2012

Quote:

Originally Posted by s.d.finley

ART sent me some bulbs for my pro VLA. They are nice guys!

Same here. Had a lamp go out on one of my VLA's, contacted ART and before I knew it 3 showed up in the mail! Great customer service.

Lamps are slightly different than the one that came out but fit and work just fine.

18th September 2011	#1
markophonic Gear interested Joined: Aug 2011 Posts: 11 Thread Starter	ART MPA Gold preamp VU meter bulbs??? I need a bulb for the VU meters on my preamp. It is a fuse type bulb but I can't find any info on the specs of the bulb...no markings on the bulbs that are in there now. Anyone one know what bulb this takes and where I can find some? Thanks! Mark

18th September 2011	#2
Mixermend Gear maniac Joined: Jan 2006 Location: Exeter UK Posts: 166	If ART cannot help with the lamp specification - measure the voltage present across the lamp and take it from there....... Do consider an LED conversion - there is plenty of information available on the Web regarding the most appropriate types to use - they can look really good, don't generate heat that can damage plastic meter mouldings - and will last a very long time! __________________ http://www.orchid-electronics.co.uk Audio Engineers Helping To Make Music!

18th September 2011	#3
Old Goat Lives for gear Joined: Apr 2007 Location: Eastern Ozarks Posts: 3,692	If a schemo will help you... http://www.harmoniccycle.com/hc/imag...-schematic.pdf __________________ singer/songwriter Soundclick Cdbaby Better a crust in peace than a banquet in a house of contention If they want any more today, they'll have to beat it out of me.

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19th September 2011	#4
LeeYoo Lives for gear Joined: Feb 2010 Location: New Zealand Posts: 754	Going from the schemo, I would guess 12volt, 100mA. (-15volt+27ohm resistor)

21st September 2011	#5
markophonic Gear interested Joined: Aug 2011 Posts: 11 Thread Starter	I ordered some bulbs from a couple different dealers that were mentioned in similar threads. I've got some coming from AudioMaintenance.com, had to have a minimum order of $25.00 USD. these were listed as 12v 1.2 watt and the bulb size seemed right. These apparantley worked for someone else...we'll see... and some from Vintage electronics, these are 12v 150ma and look like the right size. I am going to consider the LED conversion. Thanks for the schematic!

25th September 2011	#10
markophonic Gear interested Joined: Aug 2011 Posts: 11 Thread Starter	A little customer service goes a long way with me. I have had issues with other companies that weren't satisfactory. They sent me 2 bulbs for free. Couldn't be happier!