GuitarPCB | Oscar Lamas | Activity https://guitarpcb.com/members/olamas/activity/ Activity feed for Oscar Lamas. Fri, 15 May 2026 22:48:48 -0400 https://buddypress.org/?v= en-US 30 hourly 2 527b23e5b4bdc561cc91c0306a57f043 Oscar Lamas replied to the topic Maelstrom Drive in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/maelstrom-drive/#post-29556 Thu, 24 Aug 2023 03:57:45 -0400 Thanks, I did read the instructions about the 470K and 470R, great point thought I will check resistors tonight and get back to you. I appreciare the quick response from both.

 

]]> 0 dca50113bb42baf65f49261fce26fa47 Oscar Lamas replied to the topic OKF Pedal issue in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/okf-pedal-issue/#post-28567 Tue, 09 May 2023 22:51:36 -0400 Here is something you may want to try. Just last week I had this issue, and 3 months ago I encountered it for the first time.
After lots of troubleshooting I found that the solution was to change the 3PDT wiring board. In both cases I had over soldered the foot switch to the board. I changed the board and it worked. I would rule out everything…Read more

]]> 0 137fa83af65bb5fed3e3b3daa088ec56 Oscar Lamas replied to the topic Dr. Phybes low volume (solved) in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/dr-phybes-low-volume-when-engaged/#post-27655 Sun, 12 Feb 2023 02:54:32 -0500 Solved.

Hi Billy, I appreciate your help. I found one of the Q5 socket pins was not soldered at all. This fixed the issue.

Thanks so much. Sounds great.

]]> 0 83b4357bf0af845bd5a8f59135d9f2ff Oscar Lamas replied to the topic Dr. Phybes low volume (solved) in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/dr-phybes-low-volume-when-engaged/#post-27507 Mon, 30 Jan 2023 06:31:14 -0500 Thanks, here is what I have.

]]> 0 05eb166f90e63f264b40b278210acb7b Oscar Lamas started the topic Dr. Phybes low volume (solved) in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/dr-phybes-low-volume-when-engaged/ Sat, 28 Jan 2023 19:51:36 -0500 I am wondering if anyone has encountered this issue. I built a Dr. Phybes, got the paired quad set of transistors and the pedal does phase. The issue is that when engaged, the volume drops by quite a bit. I know that is is an inherent issue with some older phase pedal designs, but it is quite a drop. Has anyone experienced this? Any thoughts at…Read more

]]> 0 b04d7e8bc9b406dbf5054e578127e1e9 Oscar Lamas replied to the topic Blues Buster w/rotary switch mod in the forum Show Off Your Build https://guitarpcb.com/community/topic/blues-buster-w-rotary-switch-mod/#post-24558 Tue, 10 May 2022 23:25:40 -0400 Great post. Thanks for sharing.

]]> 0 5d9c1538fce68e413fc0d53bcc608786 Oscar Lamas replied to the topic T-Drive Switch Problems in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/t-drive-switch-problems/#post-23575 Tue, 08 Mar 2022 22:33:14 -0500 Hi there, sorry for the late response, I put a 20K trimmer on the R5 position as suggested by Cybercow, that was genius. Here is an image I got

got from        https://wiraelectrical.com/potentiometer-vs-rheostat/.

You can use a trim-pot by just using the A and B connections to dial in the desired ohms.

Rheostats

potentiometer vs rheostat

]]> 0 0aef60a2007e24ff3c1c2422f63b59ec Oscar Lamas changed their profile picture https://guitarpcb.com/activity/p/13350/ Wed, 01 Dec 2021 08:36:21 -0500 0 5503b456a62d0e0b1ee09b2580530464 Oscar Lamas replied to the topic T-Drive in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/t-drive-2/#post-21776 Wed, 01 Dec 2021 06:19:48 -0500 Thanks so Much. You are a genius. Just did what you suggested. Amazing, what a difference. i was able to adjust it perfectly. Wow. Thank you. My favorite build so far. AND I learned what “rheostat” is. Trully appreciate it.

 

]]> 0 3664f6fc464dda36d78cdf85e67195c3 Oscar Lamas started the topic T-Drive in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/t-drive-2/ Tue, 30 Nov 2021 20:58:47 -0500 Love, love, love the T-Drive I just finished. Truly the most satisfying build in a while. I have a question for those who have built it. I cannot seem to get anything different from the “Hot Mode” switch. No difference at all. Has anyone experimented with varying R5? Has it made a difference? Would love some comments. I’m playing through a…Read more

]]> 0 1b111337969e662de803d2bd8cff0e50 Oscar Lamas replied to the topic DPDT Wiring Board for a circuit with hard clipping (Klone). in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/dpdt-wiring-board-for-a-circuit-with-hard-clipping-klone/#post-21270 Wed, 20 Oct 2021 20:26:41 -0400 Thanks very much. I truly appreciate your help.

]]> 0 cb1c5a499bc5a64e470253b00ac29aae Oscar Lamas replied to the topic DPDT Wiring Board for a circuit with hard clipping (Klone). in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/dpdt-wiring-board-for-a-circuit-with-hard-clipping-klone/#post-21261 Wed, 20 Oct 2021 00:26:00 -0400 It is on off on. It would be just the Op-amp clipping. You are 100% correct.

]]> 0 922fe5339617d9164b06ffdc52d603b3 Oscar Lamas replied to the topic DPDT Wiring Board for a circuit with hard clipping (Klone). in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/dpdt-wiring-board-for-a-circuit-with-hard-clipping-klone/#post-21258 Tue, 19 Oct 2021 23:05:32 -0400 Barry, thanks so much for your reply. Here is what I have.

]]> 0 a1b4e471cfe154a94ceeb93b72fb2ec7 Oscar Lamas started the topic DPDT Wiring Board for a circuit with hard clipping (Klone). in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/dpdt-wiring-board-for-a-circuit-with-hard-clipping-klone/ Mon, 18 Oct 2021 03:57:41 -0400 I want to use the  DPDT Wiring Board for a circuit with hard clipping (Klone). I am lost as fat as being able to make it work. In relation to the wiring board, where shall I place my diodes? as you can tell I have socketed where the Diodes go. I just want to use 2 other diodes with the mod board.

Thanks for the help.

]]> 0 aba9d20d86c91b6210d5f241a48c971f Oscar Lamas became a registered member https://guitarpcb.com/activity/p/12947/ Thu, 07 Oct 2021 03:22:09 -0400 0 aba9d20d86c91b6210d5f241a48c971f Oscar Lamas became a registered member https://guitarpcb.com/activity/p/12946/ Thu, 07 Oct 2021 03:22:09 -0400 0