GuitarPCB | Robert | Activity https://guitarpcb.com/members/robertjay/activity/ Activity feed for Robert. Thu, 30 Apr 2026 07:22:33 -0400 https://buddypress.org/?v= en-US 30 hourly 2 b2af301ca56b0226b7629b350ff007b4 Robert started the topic Boogie 57 R11 Discrepancy... in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/boogie-57-r11-discrepancy/ Tue, 28 Nov 2023 18:02:51 -0500 Hi hey hello. I have been building the Boogie 57’s for a bit now and noticed a new V1. How can there be more than one V1? But there is. R11 was at one time made sure we all knew was changed to 39k!!! But now I see it’s back to 3k9. Is this a mistake?

]]> 0 1302acf61759a45ced4df5ed8a81ce19 Robert posted a new activity comment https://guitarpcb.com/activity/p/16819/#acomment-16903 Tue, 06 Sep 2022 17:24:09 -0400 I may message you with the latest. … yes

In reply to - Barry replied to the topic Buff n Blend and a Loud Pop from Foot switch in the forum GuitarPCB Build Support The BnBlend circuit does not have a blocking capacitor installed on the SEND line from the J113.  This […] ]]> 6c7cd15669ea7c6268ba011fa085d97e Robert posted a new activity comment https://guitarpcb.com/activity/p/16819/#acomment-16897 Mon, 05 Sep 2022 20:46:03 -0400 The popping is gone but there is a low him feedback from the muff when installed in the shell. Out of the shell, no hum. Muff circuit by itself, no hum. When the muff is wired with the buff n blend and is in the enclosure, there is a lie feedback hum when the gain and col are at max and the tone is full bass CCW. Not that dialing in the pedal that…Read more

In reply to - Barry replied to the topic Buff n Blend and a Loud Pop from Foot switch in the forum GuitarPCB Build Support The BnBlend circuit does not have a blocking capacitor installed on the SEND line from the J113.  This […] ]]> e6fa811e7a1e1e9bf96a364bb5513719 Robert replied to the topic Buff n Blend and a Loud Pop from Foot switch in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/buff-n-blend-and-a-loud-pop-from-foot-switch/#post-26031 Mon, 29 Aug 2022 12:13:21 -0400 BOOM. Thanks Barry! YEs all of this came to be and we have a few solutions on hand for if this arises again. For a BYOC, I have to use the pcb integrated footswitch and move the SEND of the BNB to after the 10uF cap. But with most other PCB’s I can use the BnB as intended with its footswitch. Thanks for the confirmation.

]]> 0 53263ea6193652897e78c1c31fdcd3d4 Robert replied to the topic Buffer Question... in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/buffer-question/#post-26000 Fri, 26 Aug 2022 15:40:30 -0400 Hello there, I just saw this. I had a big issue with high gain preamp pcb’s. I had no idea they were so noisy with a high frequency squeal and all kinds of unwanted noise. On my test bench, I play prerecorded loops through a boss pedal. The preamp builds sounded amazing, until we plugged it in at home … No buffer in front!. All attempts to…Read more

]]> 0 2e94bcc3e0c734d21acde391c68ad905 Robert replied to the topic Boogie 57 - Gain issue & Biasing (solved) in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/boogie-57-gain-issue-biasing-transistor-values-2-builds-same-problem/page/3/#post-24921 Tue, 07 Jun 2022 10:11:58 -0400 Hello boys. Joey Z From Life Of Agony Is Also A Very Happy Recipient Of His Own Signature Sound In A Pedal. His Mesa Dual Rec Sound On The Go… Thanks Again!!!

No photo description available.

]]> 0 556a4f6369c189a005e1e2d4219984c2 Robert replied to the topic Just a question. Killer SVT PCB in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/just-a-question-killer-svt-pcb/#post-23975 Wed, 06 Apr 2022 00:09:10 -0400 <p style=”padding-left: 40px;”>Hey, that bad boy. 9 gain stages! This thing must overdrive by default. Haha. Killer SVT, literally. Thanks! Can’t wait. This one is going to Alan Roberts, Life of Agony Bassist. His fav sound is rage against the machine evil empire. Gonna have this svt preamp and a cranky Charles in 1 enclosure. That’s supposed to…Read more

]]> 0 cdd9f4d700511482c086e48c4368ee4d Robert replied to the topic Just a question. Killer SVT PCB in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/just-a-question-killer-svt-pcb/#post-23974 Wed, 06 Apr 2022 00:06:26 -0400

]]> 0 cd87b9be344127724c938d2bb684f28f Robert replied to the topic Powered by Boogie 57 Mesa Boogie sound in the forum Show Off Your Build https://guitarpcb.com/community/topic/powered-by-boogie-57-mesa-boogie-sound/#post-23306 Wed, 23 Feb 2022 16:42:08 -0500 It’s out for demos and testing now. I took some flack from the know it alls… But they’re right, this album didn’t have a dual Rec Mesa. OK. But it’s super close and sounds great. If I put the black album cover on the pedal, I’ll get hate for that album instead. Hahaha. More to come.

]]> 0 772e1a8a25d8f3603a02587e8e529751 Robert replied to the topic Boogie 57 - Gain issue & Biasing (solved) in the forum GuitarPCB Build Support https://guitarpcb.com/community/topic/boogie-57-gain-issue-biasing-transistor-values-2-builds-same-problem/page/2/#post-23007 Mon, 07 Feb 2022 13:30:28 -0500 Just keeping you guys in the loop. What a great build./ We are so happy with what we pulled off. The boogie 57 really cranks. Thanks!

]]> 0 fc6c1050f88480e6d93e620c79f2dba6 Robert started the topic Powered by Boogie 57 Mesa Boogie sound in the forum Show Off Your Build https://guitarpcb.com/community/topic/powered-by-boogie-57-mesa-boogie-sound/ Mon, 07 Feb 2022 13:27:27 -0500

]]> 0 0ad1591712907bf79abe1b1a7520e55a Robert replied to the topic Boogie 57 - Gain issue & Biasing (solved) in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/boogie-57-gain-issue-biasing-transistor-values-2-builds-same-problem/page/2/#post-22435 Tue, 11 Jan 2022 11:03:22 -0500 Not much of a plug as much as sharing the link, but if you’d like to see where my GuitarPCB parts and boards go…

https://www.facebook.com/KillDozer-Pedals-By-Robert-Jay-112534230887383

]]> 0 3291a24e8af8d55b03014226cfa7345c Robert replied to the topic Boogie 57 - Gain issue & Biasing (solved) in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/boogie-57-gain-issue-biasing-transistor-values-2-builds-same-problem/page/2/#post-22434 Tue, 11 Jan 2022 11:00:11 -0500 I’m happy. Are WE happy? Yes I noticed The biasing. 8.4 exactly! Sounds great. The A250k pot was the wat to go for the gradual gain. I’m glad I asked in the first place. I feel like family now. Now as far as Version 2.0 is concerned, We can rename it the Robert Jay’s Boogie 57, Right?… Hahahaha. Gentlemen. Thank you. This Boogie 57 is going in…Read more

]]> 0 f779ae0642e2cfe5b5dd94d1a77316a1 Robert replied to the topic Boogie 57 - Gain issue & Biasing (solved) in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/boogie-57-gain-issue-biasing-transistor-values-2-builds-same-problem/page/2/#post-22363 Fri, 07 Jan 2022 17:16:58 -0500 How are we on the Transistor biasing through all of this? I still have Q3 at 8v, that’s as low as it will go with the trim at min.

]]> 0 3bff65e92b064db38eea5df7f950eb08 Robert changed their profile picture https://guitarpcb.com/activity/p/13519/ Tue, 21 Dec 2021 12:33:16 -0500 0 e66aa260a8cdf814cce75b31b627eb18 Robert changed their profile picture https://guitarpcb.com/activity/p/13487/ Sat, 18 Dec 2021 01:11:21 -0500 0 c7458418d7ff2e3496275ed78fe098f3 Robert started the topic Boogie 57 - Gain issue & Biasing (solved) in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/boogie-57-gain-issue-biasing-transistor-values-2-builds-same-problem/ Fri, 17 Dec 2021 17:51:28 -0500 This is the 2nd Boogie 57 in a row and I have the same problem with the second one after not being able to figure out why the 1st one is acting up. IT SOUNDS GREAT. Don’t’ get me wrong, it’s just not right. The gain pot goes from clean tone to max gain with the lightest turn CW. Based on forum chats and help, I swapped the B1M pot for a B500k, A1m…Read more

]]> 0 f4646d2ba7f02b5e318ed440e6cb2eec Robert replied to the topic Boogie 57 GAIN pot in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/boogie-57-gain-pot/#post-21797 Thu, 02 Dec 2021 18:27:25 -0500 Also… My Q1-4 biasing is a little off. # and 4 goes up past 6.5 when the gain pot is down. Is the biasing based on the gain pot? I didn’t read anything about setting the gain pot before biasing the trim pot settings….

]]> 0 19edd30182a0c551cf00b115cbfe2a56 Robert replied to the topic Boogie 57 GAIN pot in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/boogie-57-gain-pot/#post-21790 Thu, 02 Dec 2021 16:29:15 -0500 Hi Billy. I’m back at this project. I did remove the B1M at the board, Just to be safe as far as the pot goes. It’s a 90 degree pcb mount pot that I don’t want to heat more than I have to. It seems fine. Range and change is as expected. I was pretty sure that i checked and rechecked all of the resistors around that gain pot circuit, but here is a…Read more

]]> 0 200dc7c1f35716b4820c4d24dd4f5e7c Robert started the topic Boogie 57 GAIN pot in the forum GuitarPCB Build Support https://guitarpcb.com/forums/topic/boogie-57-gain-pot/ Mon, 15 Nov 2021 14:27:00 -0500 I checked, I double checked, I looked for previous posts and have to ask…

The B1M pot for the gain goes from Min to MAX with the slightest turn CW. It sounds great, but something is off, no? Q1-Q4 are all biased at around 5.5 Def between 5-6. Maybe swap the Pot to an A? Was thinking associated resistors in the line might be off, but all seem to…Read more

]]> 0 65563168bc72b762254f60ec48d7114e Robert replied to the topic Bias a Boogie 57 circuit (solved) in the forum General DIY Pedal Discussion https://guitarpcb.com/forums/topic/bias-a-circuit/#post-21504 Mon, 15 Nov 2021 14:02:18 -0500 Hey, I just had a tranny or 2 that wouldn’t come down past 8!!!. I had a bad B1M pot. Once the gain pot was replaces, all was good with the biasing.

 

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