Old school here. Custom output module to a Carver PM-600 to JBL L100S speakers. I have two other synth setups in the room, both with Carver PM-600s. One driving JBL 4311 Control Monitors and the other driving JBL L80S. I like Carvers and JBL.

Per above There are also good operational descriptions for the new firmware features there. Dave Brown's 248 V2 page Programmed Pulse out LED Swapping. You no longer have to do the resistor swapping mod. We now handle that in firmware with a interface on the panel. Since I was running on a board whe...

When I took all those scope images and really understood the 266 I did so on my 5U version which had my custom panel so everything matched. My Buchla V2 matches the panel. I don't have a V3 to verify but as you've noted it is pretty easy to tell. At N=1 both outputs have just two values as seen in t...

Rats, I read the board backwards. I only have a image of a EMS board and There is a trace similarly placed under the waveshape pot. However, when I wiggled the MO pot, I might have moved the motherboard and gotten the CO to touch. I guess I'll pull it again and raise that pot just in case.

Dave

Maybe this will help a builder someday. There was a hard to find short between quiet ground and -15V on the motherboard of a 208 I'm currently building. It was caused by a metal tab below the CO fine tuning pot touching the -15V trace of its CW terminal. I didn't recognize this tab from the photo b...

I just couldn't resist. I will say I've never seen anyone with a ponytail play a Moog. I would expect that of some other unnamed format. I haven't had a ponytail since college when I couldn't afford a haircut, and that was 46 years ago. However, after trimming my beard for 34 years in the workplace,...

papz wrote: ↑

Wed May 20, 2020 10:18 am

Thanks for the feedback.

The rev1 calibration procedure is on http://emcloned.com/viewtopic.php?f=17&t=244#p3752
Registration is needed.

I also have a page with some tips and mods on the 208 V1 module.

Dave

I can never remember so I finally put a description and scope images on my 281 Quad Function Generator page.

Dave

I just added a number of new internal photos of the Timing Clock courtesy of the owner on the CEMS Clock page.

Dave

I'm wondering what people use their Model 13 for... the filter doesn't do much and the VCAs don't totally close (they leak a little in Amp mode and a lot in Filter + Amp mode.) It also "rings" for so long that I can't really do anything percussive with it - if I want it to close in any reasonable a...

Old news but my fix for completeness of this thread is on my 245 Sequential Voltage Source module and the 246 Sequential Voltage Source page.

Dave

I bought one and my system is mostly MOTM so I need to make a power adapter cable. I emailed them and they confirmed the power is +/-15V for the LEDS only. No +5V is used. The meter works unpowered.

Dave

He sent me a PCB and panel set for my help so I built it. I have a few pictures on my Buchla format Benjolin page. I didn't add any operational information since I have that on my 5U Bejjolin page.

Dave

I just opened a shipment from Mouser. All the TL072, TL074, and a CD4021 parts were tarnished so I had to clean them before installing. Is the CD4021 date code really 1993? What is the top date code - 1998, 2008?

Dave

I am wondering if I couldn’t use a program card, a switch and two resistors to be able to switch the MO between Lo and High range. Is this possible? This is exactly what I did although I used trimmers so I could trim them exactly The switch is 3 position so +1 oct, 0, +2 oct. It's at the bottom of ...

I just built a Serge WAD in a Frac-format for a customer. It uses the CGS-208 PCB so it is a deep module. Photos and such on my Frac WAD page.

Dave

I get them every couple of orders on older DIP parts. I've had plenty of CD4XXX as well as some of the comparators be tarnished. I have a sharpened pink pearl eraser that I use to polish the inside and outside of the pins. I've never had enough oxidation that I think there would be a problem but I l...

I built mine 16 years ago with a set of Hammond spinet pedals and a Basic Stamp. I made provisions for CV/Gate/Trigger output but never wired up that portion. I've stayed with MIDI all these years and it works fine. Wow, the videos really look dated on that page with the camera technology back then....

I create web pages with photos of the Moog modular restorations I do. Individuals contact me from time to time with unique modules they have. If they send me photos I create pages for those as well. I just created pages with some of the unique CEMS modules and the 959 XY Controller. Previously I cre...

I fixed the page and added a reference diagram for V3 from a PCB image I had. He wants to adjust the vactrol gain so A left, A right, F left, and F right match the other channels I believe.

Dave

First, on my 204 Quad Spacial Director page I had to replace one of the joysticks that burned out. I found many physically the same but not the correct value. I just chose to use one of a different value. It is simply a voltage divider with a direct output. The issue is if you short the output while...

I have a banana jack on the front of one of my power panels that is tied to ground. I can use it either with a wrist strap or more often I have just a plate on the desk. I always touch it first.

Dave

A customer asked me to make him an interval scaler for a PAiA. PAiA is a V/Hz so you can't just add or subtract voltages from the CV. You can, however, multiply them with scale factors. -1 octave or +1 octave are simply multiplying by 0.5 or 2. He wanted a major and minor third and a major fifth. Th...

oozitron I hope you post some more this weekend. I need to understand the way the data from IN1,IN2,IN3 could be clocked (perhaps using IN4 as a clock providing the BPM instead of having it as a constant ie get this part 'BPM=300 ' Change this to how ever many Beats Per Minute you want. 'TEMPO=6000...

David Brown was an avid developer. I forget his Muffname but I think we are Facebook friends. Cheers! John Mahoney I did a lot of hardware and software development for the PSIM in a 5U format. I added MIDI, SpeakJet and the TTS256 text to speech, and an LCD display. I developed a set of drivers usi...