Search found 8 matches
- Mon Aug 27, 2012 9:57 pm
- Forum: JLM Audio Kits
- Topic: JLM99*MB Kit documentation
- Replies: 26
- Views: 57019
Re: JLM99*MB Kit documentation
Hi Guys, I know this thread is a bit old....but it's relevant to my current build. I have the JLM99*MB kit and am putting it together with a pair of Fred Forssell fet992 DOA's... Looking to use an OEP on the board, so Joes schem for the dual 99v with the OEP provides a great starting point. also fou...
- Tue Aug 25, 2009 9:26 pm
- Forum: JLM Audio Kits
- Topic: Valve Preamp & Compressor Kits- AT Interview
- Replies: 11
- Views: 31816
Re: Valve Preamp & Compressor Kits- AT Interview
Is someone going to start a valve BA beta testing line up thread???
Also, does anyone know if Mr Malone a bourbon or red wine drinker ? - just getting my bribes organised now so i can jump the queue....
Mac..
Also, does anyone know if Mr Malone a bourbon or red wine drinker ? - just getting my bribes organised now so i can jump the queue....
Mac..
- Tue Aug 25, 2009 9:14 pm
- Forum: JLM Audio Kits
- Topic: JLM small 34mm VU - QUESTION
- Replies: 9
- Views: 23216
Re: JLM small 34mm VU - QUESTION
Cool, thanks heaps Joe. And thanks for taking the time on such a simple noob question... cheers, Mac. P.S. how far away are your new tube kits I have been hearing about?? I might hold off on building a Gyraf G9 if I know you might have something available in the next few months... DONT WORRY - just ...
- Tue Aug 25, 2009 3:43 pm
- Forum: JLM Audio Kits
- Topic: JLM small 34mm VU - QUESTION
- Replies: 9
- Views: 23216
Re: JLM small 34mm VU - QUESTION
Thanks Joe,
Series Resistor value = (Power rail voltage - Led voltage {2v or 4v}) / o.o1
30v rail - 4v/0.01= 2600 (one 2.6K resistor)
Shouldnt I use two resistors to spread the heat??
Mac.
Series Resistor value = (Power rail voltage - Led voltage {2v or 4v}) / o.o1
30v rail - 4v/0.01= 2600 (one 2.6K resistor)
Shouldnt I use two resistors to spread the heat??
Mac.
- Thu Aug 20, 2009 5:18 pm
- Forum: JLM Audio Kits
- Topic: JLM small 34mm VU - QUESTION
- Replies: 9
- Views: 23216
Re: JLM small 34mm VU - QUESTION
I'd suggest connecting them in parallel to your supply, rather than in series. Yeah, thanks Chris. I thought about that after I posted. But I figure if one goes down I will open the unit anyway :) I might email Joe and find out from the horses mouth what the voltage and draw of these things are. I ...
- Thu Aug 20, 2009 10:20 am
- Forum: JLM Audio Kits
- Topic: JLM small 34mm VU - QUESTION
- Replies: 9
- Views: 23216
Re: JLM small 34mm VU - QUESTION
also,
I had planned to connect both in a string, since i have so much input voltage at my disposal.
Mac
I had planned to connect both in a string, since i have so much input voltage at my disposal.
Mac
- Thu Aug 20, 2009 10:16 am
- Forum: JLM Audio Kits
- Topic: JLM small 34mm VU - QUESTION
- Replies: 9
- Views: 23216
Re: JLM small 34mm VU - QUESTION
Thanks Chris,
So do you know that the led in the 34mm VU is 12volt, or are you assuming it is?
I used the online calculator at http://led.linear1.org/1led.wiz and assumed the values, ahead of actually finding out what i was dealing with.
regards,
Mac
So do you know that the led in the 34mm VU is 12volt, or are you assuming it is?
I used the online calculator at http://led.linear1.org/1led.wiz and assumed the values, ahead of actually finding out what i was dealing with.
regards,
Mac
- Thu Aug 20, 2009 8:59 am
- Forum: JLM Audio Kits
- Topic: JLM small 34mm VU - QUESTION
- Replies: 9
- Views: 23216
JLM small 34mm VU - QUESTION
Hey, Does anyone know the voltage required for the little led's inside the small round 34mm VU's that Joe sells??? http://www.jlmaudio.com/VU%20Buffer.htm I have bought two of them, but cant find the answer to this question anywhere. Also, can you open them up to replace or change the LED? I wanted ...