Search found 1545 matches

by Joe Malone
Tue Aug 20, 2019 12:20 pm
Forum: JLM Audio Kits
Topic: MAC Rack kit Build Thread from October 2016 with slow attack led
Replies: 25
Views: 14926

Re: MAC Rack kit Build Thread from October 2016 with slow attack led

Hey again Joe, Got to the calibration stage - the first side went well. Then got to the second side and had 1.67v output... after some investigation, I noticed I somehow missed installing a 100k resistor on the dingo :roll: That side is reading around 1.25v output now with 1.23v input (I assume thi...
by Joe Malone
Sat Aug 17, 2019 10:30 am
Forum: JLM Audio Kits
Topic: POWER PLANT BUILD THREAD
Replies: 19
Views: 17465

Re: POWER PLANT BUILD THREAD

Concerning the spot marked "case," I'm assuming this is the one and only connection to chassis from the power supply board. Can the AC mains earth ground still connect to chassis right by the IEC input connector like usual, or do I have to route it to this "case" spot on the pow...
by Joe Malone
Fri Aug 16, 2019 10:34 am
Forum: JLM Audio Kits
Topic: Go Between RC Build Thread
Replies: 0
Views: 21

Go Between RC Build Thread

Go Between RC Build Thread Below is the 2 most common wiring diagrams. With all relays operating on 48v or +/-24v max current draw is 18mA per GO between RC pcb + any LED or lamp current. Control voltage can be changed to 5v to 52v or +/-2.5v to +/-34v by 3 resistor changes and the 2 relay changes ...
by Joe Malone
Mon Aug 12, 2019 11:35 am
Forum: JLM Audio Kits
Topic: VUPPM500 KIT Build Thread
Replies: 12
Views: 925

Re: VUPPM500 KIT Build Thread

Both have been built and calibrated successfully! The build is pretty simple, even without step by step instructions. Ran into a few snags on the first build but the 2nd one was much faster to assemble. A couple of pointers: Display PCB 1. Long lead of the LEDs go through the pad with a square. 2. ...
by Joe Malone
Mon Aug 12, 2019 11:27 am
Forum: JLM Audio Kits
Topic: VUPPMGR40v3 kit (40 Led PPM/VU/GR Meter kit) BUILD THREAD
Replies: 18
Views: 36025

Re: VUPPMGR40v3 kit (40 Led PPM/VU/GR Meter kit) BUILD THREAD

wave wrote:I really need some further guidance. I am just not seeing how to jump for full brightness. Can someone please elaborate?


Fit shunt jumper to first position of header as shown on attachment
by Joe Malone
Thu Aug 08, 2019 9:25 pm
Forum: JLM Audio Kits
Topic: VUPPMGR40v3 kit (40 Led PPM/VU/GR Meter kit) BUILD THREAD
Replies: 18
Views: 36025

Re: VUPPMGR40v3 kit (40 Led PPM/VU/GR Meter kit) BUILD THREAD

Hello, I've put one of these together for a client and I'm trying to calibrate. Is there a procedure for calibration using a standard function generator? Preferably one that I can count LEDs to align with as I don't have the purpose made JLM meter scale. Also, I'm not understanding how to jumper th...
by Joe Malone
Thu Aug 08, 2019 8:38 am
Forum: JLM Audio Kits
Topic: VUPPM500 KIT Build Thread
Replies: 12
Views: 925

Re: VUPPM500 KIT Build Thread

Success! Now I just need to calibrate it. Also with respect to passing through audio and have it have both input & output. Is it possible to do this on a normal VPR Rack like a CAPI 511-VPR? Thanks for your help! Cool great to hear you got it working CAPI rack only has XLR in and out so needs r...
by Joe Malone
Thu Aug 08, 2019 8:37 am
Forum: JLM Audio Kits
Topic: VUPPM500 KIT Build Thread
Replies: 12
Views: 925

Re: VUPPM500 KIT Build Thread

Success! Now I just need to calibrate it. Also with respect to passing through audio and have it have both input & output. Is it possible to do this on a normal VPR Rack like a CAPI 511-VPR? Thanks for your help! CAPI rack only has XLR in and out so needs reverse XLR cable into the out to use i...
by Joe Malone
Wed Aug 07, 2019 7:10 pm
Forum: JLM Audio Kits
Topic: VUPPM500 KIT Build Thread
Replies: 12
Views: 925

Re: VUPPM500 KIT Build Thread

Oops, I think I figured it out. When joining the LED PCB to the MAIN PCB I only soldered together one side. For some reason I wasn't thinking and thought it was for just holding it together, but it actually is to connect all the components and LEDs. Go figure when building it at 1am. Will bridge th...
by Joe Malone
Wed Aug 07, 2019 7:07 pm
Forum: JLM Audio Kits
Topic: VUPPM500 KIT Build Thread
Replies: 12
Views: 925

Re: VUPPM500 KIT Build Thread

Thanks for the add Joe! I'm currently putting together the first of 2 VUPPM500 modules. I've assembled all of the PCB's but haven't put it together yet. A couple of questions: OK cool 1. When connecting the LED PCB to the MAIN PCB, do you recommend using excess leads from resistors to connect it to...
by Joe Malone
Tue Aug 06, 2019 4:26 pm
Forum: JLM Audio Kits
Topic: Go Between and Go Between Plus kit BUILD THREAD
Replies: 29
Views: 40560

Re: Go Between and Go Between Plus kit BUILD THREAD

Can't find any documentation on variable pad kit (DI ??) that I'm using (or trying to) on a GoBetween + card (no xfmr - jumpered signal past xfmr mounting holes). I get signal to the variable pad PCB and ICD connector (pin 3), but nothing to the dual pot pins. There's continuity between IDC connect...
by Joe Malone
Wed Jul 31, 2019 6:31 pm
Forum: JLM Audio Kits
Topic: MAC Rack kit Build Thread from October 2016 with slow attack led
Replies: 25
Views: 14926

Re: MAC Rack kit Build Thread from October 2016 with slow attack led

Hi Joe, Just getting going on the dingo and saw the note about avoiding using the () and [] components when using your 99v opamps. Wanted to verify that I should NOT place R17, R18, R20, C11, C13. You have those installed in the pictures, and you seem to be using the 99v opamps in those photos as w...
by Joe Malone
Mon Jul 29, 2019 10:16 am
Forum: JLM Audio Kits
Topic: Go Between and Go Between Plus kit BUILD THREAD
Replies: 29
Views: 40560

Re: Go Between and Go Between Plus kit BUILD THREAD

As an impulse buyer, I quickly ordered two (2) Go Between kits to use in racking a pair of Langevin AM17 mic pre's. I expect them to arrive by early next week. Some issues I'm now considering include how to include an input impedance switch for the AM17's. Putting the input pad before the mic input...
by Joe Malone
Mon Jul 22, 2019 12:46 pm
Forum: JLM Audio Kits
Topic: ACDC 3 rail power supply with Sound Workshop Series 30 channel modules.
Replies: 1
Views: 50

Re: ACDC 3 rail power supply with Sound Workshop Series 30 channel modules.

JLM ACDC 3 rail power supply with 4 channels of Sound Workshop Series 30 channel modules. Wow that is very nice & super neat build :-) 8) Please if you have any comments and/or photos of your JLM Audio kits or gear in your rack please put them up on our social media page at the links below or s...
by Joe Malone
Sun Jul 21, 2019 11:09 am
Forum: JLM Audio Kits
Topic: BA BA2 BA4 BAD Dual99v Build Thread
Replies: 323
Views: 254347

Re: BA BA2 BA4 BAD Dual99v Build Thread

Yep. That's fixed it. Thanks for your help. Cool great to hear :-) Please if you have any comments and/or photos of your JLM Audio gear in your rack please put them up on our social media page at the links below or send them to us by email as we work completely by word of mouth with no paid adverti...

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