https://guitarpcb.com/members/jd6string/activity/ Activity feed for jd6string. Sat, 12 Sep 2026 22:38:32 -0400 https://buddypress.org/?v= en-US 30 hourly 2 7093d90288740d0af0f40d3c1abf8570 https://guitarpcb.com/community/topic/nt-preamp-boost-correct-ic/#post-40273 Wed, 12 Aug 2026 16:57:17 -0400 Thanks MathU41. I had the same issue with the preamp boost section of a Rock Hard build. The TL072 would not work, so I changed it out and installed the TL071 and it worked. I noticed in a couple of photos in the “Show your build” thread that a TL061 was used in one build and a TL071 was used in another build. Thanks again for your post about…Read more

]]> 0 9583b98d1d207bc0b1da0d427818771b https://guitarpcb.com/community/topic/nastalgitone-rock-hard-finished/#post-40265 Tue, 11 Aug 2026 21:33:23 -0400 I recently built the Rock Hard project. What I didn’t realize is that the parts list and schematic call for a TL072 IC. I had to trash the first build after trying to trouble-shoot the boost not operating (saved a few parts). I built a second one and the same result with the boost happened. Thank goodness for the forum – I discovered that listing…Read more

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