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1

Build Reports / ProtoRig is kickin!

« on: October 18, 2021, 05:10:35 PM »

The ProtoRig is very convenient. Did a Lpb1 into a Bazz Fuss in no time.

2

Open Discussion / Fart pedal

« on: September 29, 2021, 08:49:02 PM »

Hilarious... make sure to watch the demo

https://www.ajournalofmusicalthings.com/about-time-a-pedal-that-makes-your-guitar-fart/

It has its own YouTube channel for more demos
https://youtube.com/channel/UCYQXSV1sq1otUE_WxtARsGA

3

Open Discussion / What do you think... Modular pre-amps in amplifiers?

« on: September 27, 2021, 10:23:38 PM »

I'm curious as to your thoughts and opinions on the concept and various implementations of modular pre-amps such as the Randall/Egnater RM series and the newer (imo unfortunately named) Synergy systems.
https://www.synergyamps.com/

I know Billy Corgan uses/d several of the Randall RM-4 rack unit with some custom modules provided by Salvation Mods
http://salvationaudio.com/index.php?page=modifications

There is also Jaded Faith mods doing this sort of thing
https://jadedfaithmods.com/

There are other Randall models out there like the RM 1250 rack, RM 100 head, RM50 combo, RM20 and RM22 heads

4

Open Discussion / NGD - Gibson Non-Reverse Firebird

« on: June 01, 2021, 06:05:36 PM »

This is the first actually new,new guitar I've ever bought even tho it is already 5 years old. Got this straight from the Gibson Demo Shop as a factory "Mod".

2016 Gibson Non-Reverse Firebird in Vintage Copper Limited Edition with a factory added short Vibrola

It does not have the magnet rail type Firebird pickups which is kind of a bummer but these are a Classic 57 and 57+ which are great too.

The body is thin like an SG but not quite as contoured but still feels very nice

The neck is the fatter rounded profile which I much prefer to the slim taper

5

Requests / Bypass board with output buffer for tails?

« on: May 26, 2021, 11:38:48 AM »

Is it feasible to even do, or does it just not work well enough?

6

General Questions / Setback / FX90 volume drop

« on: May 23, 2021, 11:38:55 AM »

Im finishing up a Setback build and yes the thru volume drop is a bit annoying. Is it something that was solved for in later revisions?

I used trimpots for R4 (200k) and R48 (100k) and even maxed out they don't seem to help. Any Ideas?

7

Open Discussion / Moogerfooger schematics! Here they are!

« on: May 20, 2021, 07:11:13 AM »

8

Open Discussion / Moog PMS-15 amplifier - Anybody have any info about this?

« on: May 13, 2021, 08:55:23 PM »

I'm a big fan of the Roland jazz chorus and Lab Series amps and I have been thinking about trying to build one or something like them. I don't know how it sounds but this is a small, simple, 15 watt, solid state Moog amp with a JBL speaker and it looks killer. I'd love to try to build something based off it.

Supposedly there were only 3 of these fully assembled PMS-15 amps ever sold from the early days of the R.A. Moog Company so my hopes aren't high... I'm mainly curious if anyone has a schematic for this? Videos, sound clips, pics whatever you have.

https://www.matrixsynth.com/2014/04/switched-on-birth-of-moog-synthesizer.html?m=1

There is a lot of good info in this catalog for it and apparently it was sold as a kit too.
https://moogfoundation.org/wp-content/uploads/1964-R.A.-Moog-Catalog.pdf
"The amplifier circuitry includes thirteen transistors and five diodes"

http://www.moogarchives.com/pms.htm
"The resulting instrument embodies several departures from conventional circuitry, and other design features that combine conventional components and circuitry in novel ways. "

http://moogarchives.com/forum/viewtopic.php?t=145&highlight=pms
Apparently, John had a pair of kit chassis about 16 years ago...

9

Open Discussion / Diode comparison and testing

« on: May 06, 2021, 08:15:14 PM »

I ran across this and found it interesting so I thought I'd share. There are lots of other good comparison charts with steepness curves.

https://therepaircafe.wordpress.com/2019/10/24/forward-voltage-of-various-diodes/

10

General Questions / Setback delay at 15v?

« on: May 02, 2021, 09:11:32 PM »

Is it ok to use a roadrage(or the 3pdt05 bypass) with the Setback? The build doc only mentions up 12v.

11

Build Reports / Fritter module

« on: April 29, 2021, 08:46:36 AM »

MB Fritter 8HP module. I love it, sounds great

12

General Questions / Aluminium hole machining - CNC, Laser, Water, punch, drill?

« on: April 28, 2021, 08:56:37 AM »

I'd like to try to replicate the elongated pill shaped, and maybe even some rectangular holes, I see in a lot of eurorack aluminium front panels. I'm using 0.09" (2.3mm) thick 6061 (so I can stomp on it). I bought a small professionally made filler panel as an example to make sure I had my measurements correct and it is thinner and feels like a softer more plyable alloy. (See pic)

Does anyone have any recommendations about the best/cheapest/most pro way to do this for a hobbiest? I wouldn't mind buying a small $100-$300 machine that I could get some other good uses out of but Im not sure what that would be yet.

Here is my scenario... I messes up and assumed the hole distance from the side was the same as the hole pitch which is 1HP (5.08mm/0.2"). It's not, it's 1.5 HP. So, (to be in compliance with the eurorack standard) I need to correct all the counter sunk holes I have already by stretching them out to the side.

Thanks for looking!

13

Build Reports / Some new modules

« on: April 27, 2021, 09:13:42 AM »

Here are some more modules for my Multi Modular Mega rack/board that I've completed over the last few months.

14

General Questions / Setback delay mod or bbd double

« on: April 27, 2021, 08:40:16 AM »

Anybody know of any modulation or bbd doubler daughter boards that will work with the Setback?

15

Build Reports / Setback delay

« on: April 27, 2021, 08:26:23 AM »

I populated my Setback board last night with the components I had on hand. Need to order a handful of few parts to complete.

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