1

AB528 Microphone preamplifier / Re: part J1a damaged

« on: December 12, 2024, 10:16:39 PM »

I got everything working, I was able to solder the pins on both sides to the PCB and get the pre amp working, Thanks!

2

AB528 Microphone preamplifier / Re: part J1a damaged

« on: December 08, 2024, 01:26:56 AM »

Thank you for the part #, I just installed the new part and when I power it up the clip light stays red. No controls do anything. Before I installed the new J1a part everything appeared to work, the only thing that didn't work was the output potentiometer. Your help would be greatly appreciated. Thanks 

3

AB528 Microphone preamplifier / part J1a damaged

« on: December 01, 2024, 03:31:11 AM »

Hello, 
When assembling the mic pre I accidentally soldered the part J1a in backwards and damaged it when I got it out, where would i be able to get that part at? 

4

MU524 Vari-Mu Tube Compressor / Fried Resistors

« on: October 18, 2024, 10:49:24 PM »

Hello, While I was setting up my Varimu with a voltmeter i accidently fried two resistors, R35 & R36. I was wondering if you could send me a part number for those resistors so I can replace them. 
Thank you! 

5

EQ573 Equaliser / Re: Part missing and a few broken ones.

« on: December 30, 2023, 11:46:15 PM »

I checked the bridge connectors and I forgot to solder the pin highlighted in green, oops! I soldered it and put everything back together, it works great and sounds fantastic, thanks Jean-Pierre! 
When I get money, I'll be buying more. 

6

EQ573 Equaliser / Re: Part missing and a few broken ones.

« on: December 29, 2023, 03:43:21 AM »

I've checked the solder joints on C19 and C20 and the L1 inductor, all look good. I do have signal when the low pass in in the 160 Hz position, it is very quiet though, compared to the other positions. 

7

EQ573 Equaliser / Re: Part missing and a few broken ones.

« on: December 25, 2023, 01:40:50 AM »

Hey Jean-Pierre! I got the kit put together and everything is working great except for the high pass filter doesn't work on the 160 Hz position, I'm curious as to where I should start trouble shooting.

Thanks! 

8

EQ573 Equaliser / Re: Part missing and a few broken ones.

« on: December 19, 2023, 12:29:52 AM »

Thanks for the response and information Jean-Pierre! 

I ordered the capacitors from Mouser using the Digi keys you provided, I'll let you know if everything works. 

Again, thanks for the top-quality builds at affordable prices! 

9

EQ573 Equaliser / Part missing and a few broken ones.

« on: December 16, 2023, 06:52:48 AM »

Hello Jean-Pierre! 

I just got done soldering and putting together my EQ573-II and accidentally soldered the ceramic capacitors C62 and C70 to the wrong spot and had to cut them out destroying them, is there any way you guys could point me in the right direction on where to get the right capacitors so I can finish this build? Also, the capacitor C28 you guys sent me was supposed to be rated at .022 or 22n, but the one I got was rated .22, there was also an extra Resistor Network (9 instead of 8. Thanks again for the quality build I really enjoyed my last one, the AB528, it sounds great!