Search found 4 matches

by kp4xb
Tue May 14, 2013 2:50 pm
Forum: Modification Maddness
Topic: Problem Rolling the OP AMPS in the RP533
Replies: 8
Views: 17940

Thanks Guru for your help. Definitively was a counterfeit OP AMP. The new OP AMP arrived from Newark and this one are very different. Here is a picture of them. The one on top is the counterfeit and the one in the bottom is the original. The imprint information in the original OP AMP is dark gray. I...
by kp4xb
Thu May 02, 2013 8:15 pm
Forum: Modification Maddness
Topic: Problem Rolling the OP AMPS in the RP533
Replies: 8
Views: 17940

Hello Guru:

Excellent. I placed an order with Newark just a couple of minutes ago. I'm convinced that I bought a counterfeit OP AMP from China on Ebay and that cause my problem. Next week is going to be here the new ones. Thanks for the recommendation.

73 from

Carlos

KP4CA
by kp4xb
Thu May 02, 2013 5:59 am
Forum: Modification Maddness
Topic: Problem Rolling the OP AMPS in the RP533
Replies: 8
Views: 17940

Hi Guru: I think that it is. Sadly I bought them from Ebay and I think that they are the counterfeit one because of the price. 10 for $17.50... I didn't know that detail when I bought them. Could you recommend me a good supplier here in the US? Been not the originals, I think that they are going to ...
by kp4xb
Tue Apr 30, 2013 7:51 am
Forum: Modification Maddness
Topic: Problem Rolling the OP AMPS in the RP533
Replies: 8
Views: 17940

Problem Rolling the OP AMPS in the RP533

Hello Voodoo audio brothers. Yesterday I rolled out the old OP AMPs on the RP533 and the RP562. I installed a AD823AN on them. The RP562 is ok but the RP533 is acting weird. Now the RP533 is without signal randomly. When that happens, I crank up and down the Output level on the RP533 and it fix the ...