JLM AUDIO

Hi Joe, Can the DI or it's ribbon cable have something to do with it? I looked at the ribbon and it seems kind of tight in there between the VTX and the back of the DI pcb... There seamed to be a tiny tiny hole pierced in the ribbon by the slightly protruding capacitor legs at the back of the DI pc...

Hi,... I hope that picture are with better resolution. OK looks right. But are you using the same box and woofers and tweeter as described a few pages back on this thread as this will only work for that exact configuration. Volume control can be done with normal dual 1k to 10k log pot. I can draw h...

Hi,.. Few weeks ago i repair a Active Speaker from a friend. The amp is a 3xlm3886. Two for the woofers and one for the tweeter. I like to make one pair or two for me. I gone by some of your pcb´s, but the shipping cost,.. :( No sure what you mean about shipping cost as it should only be about $10 ...

no2 wrote:Alright, thanks so much Joe!!!

I'll definitely recommend this experience to other audio nerds I run into.

It sounds great too.

Hi Joe, Thanks for your response. The 51R next to output pin of 99V is looking burnt(brownish tint) but still measures 51ohm(in circuit). Ok there there is either a occasional short after the 51R or the BA out or transformer output was shorted while high audio level was on the output. I also notice...

OK I see you order your owns part and yes there was typo of 3 x 15k which should have been 6 x 15k and 3 x 1k8 should be 4 x 1k8. Sorry. Parts list now fixed. Regurgitator Parts list 1 x Regurgitator PCB 1 x DIP8 machined pin socket 1 x 3 way terminal block 1 x 2 way terminal block 4 x 100uF 25v ele...

OK I tried my other interface and I get 1.28vac on the output TS cable. I plug that in to DAC and I get -18dBFS on the DAC. So 0 VU = -18dBFS as it should . On the la500, with both threshold and makeup pots fully CCW the VU meter reads -20 dB with no tone and it reads 0db with tone. with both pots ...

Is the capacitor between the +/- on the VU`s to reduce defeletion time possible on other meters, or is it only possible on the Flashstar VU? I tried it on the Simpson meter that I own and I had lost all movement. I used the same value cap, except for the voltage rating (which was higher). Any info ...

Hello, I'm confused about the parts list above. I ordered the parts listed and ended up with half the 15k resistors that I needed to fully populate the boards (8 pak). I'm assuming (as per the pics) that the boards should be fully stuffed for all configurations. Are there any differences besides th...

Hi, I have a BA2 "everything kit" with 99V and VTX trany. It worked fine for the first few weeks and then one channel stopped working and fried the 99V. (I thought the problem was caused by a faulty power supply at first). The 99V was replaced and it worked for about a year. Now, it seems to have d...

mento wrote:Hi there!

I have a question regarding the 10uF bi-polar output caps.

there's no indication how they go in on the pcb. do I fit these the same way like the 100uF ones?

thanks a lot!
matthias

Hi Matthias

BI Polar or NON polar caps have no polarity so can go in either way around.

Hi all, I'm thinking about building either the 1272 or Dual99v 2 channel kit. Does anyone here no what the noise specs of each kit are? Sorry if this has been discussed before, I can't find anything on it. Cheers, Michael Both 1290 and Dual99v can perform to the noise spec of EIN -129dB as long as ...

Hi Joe, just a quick question on the schemo in the first post of this thread (LA500 PCB). The nice yellow connection signs do refer to the card edge connector,no? If so:Shouldn´t the link pin be #6 instead of #5 (#5 is used for audio gnd on the connector)? Also the psu 0V at the bottom of the page ...

OK it's real close. But I cannot get 1.23 vac. I get 2.1 vac at all times on the XLR output. Ok something wrong in the measuring there. So may be easier to plug the LA500 output into your A/D. If you know the input level your A/D clip or hits 0DFS is +18dBM for example. Then when the software meter...

OK adjusting the meter 0vu trim pot has made the makeup gain pot read 0 vu on the analog meter when further CCW than before. So that works.[ Ok did you set the pot to 1kohm roughly? the lunchbox XLR pin reading is 0.4vac when nothing connected and is 0 vac when la500 is connected. You have to send ...