#Diptrace external pins how to

Regarding the variable gate and clock pulse voltages, I have stuck to my intention and added six upright side-adjust single-turn trimmers type 3362M (six-off, all 10K, Mouser part# 652-3362M-1-103LF) with in-line pads as there was limited space to add extra resistors and header pins for voltage selection or to have the offset pin spacing without too much track and component moving. I am sure there are other manufacturers offering similar products and footprints though I have not investigated these.

The pad spacing is exactly the same as the 3362P single-turn trimmer but for neatness I've updated the screen-print to suit. These are in fact 25-turn as Bourns do not offer 10-turn in this style. I have gone for the upright multi-turn Bourns trimmers type 3296Y (the fourth pad layout in your list) to replace the eight existing trimmers. Thanks for your feedback, which I have considered carefully. Simple to ignore for those who don't need it. And of course the two pin HDR could also interface to a pot, for add-on adjustability.

#Diptrace external pins how to

A small section of the build manual can describe how to choose a resistor for other than those 'provided'. Then one can use a shorting block or external switch to activate or allow either of two different levels. For long-term function and use also better to have fewer than more trims.Įdit: even better, just add the 2nd resistor location -per output- and a two pin 'jumper' HDR. Adding 3 resistors to a synthcube kit to accomodate a lower GBus out option is IMO far better answer than using trims here. Just calculate a single or pair to give wht you desire, and put that as an option on the bom. Since these are simple two resistor voltage dividers, trimpots seem huge overkill. Your thoughts please.Īnd also adding trimmers for the gate bus outputs to make it more eurorack friendly - the standard gate voltage is around 14V which may be a bit on the high side for eurorack. Reference to JMSL has been deleted as this is entirely my design.ĮDIT: I am contemplating changing the single turn trimmers for 10-turn for finer setting accuracy, and also adding trimmers for the gate bus outputs to make it more eurorack friendly - the standard gate voltage is around 14V which may be a bit on the high side for eurorack. Descriptive text has been reinstated for all the trimmers and anywhere else it may be missing on the Rev 5.ĥ. A 3-pin header has been added for the divider add-on providing +15V, Ground (0V) and Gate Bus 2. The original large and expensive DC-DC converter has been changed for a much smaller and cheaper Meanwell DCWN06A-15. Perhaps someone with said switches and a metric dial caliper can confirm this for me.Ģ. Note: I do not have any of their switches to physically measure them. These are 7.92mm between each position, and 8.64mm between each row, except for the 4-pole switch which is 8.64mm between the two inner rows and 5.59mm between inner and outer rows. The CW Industries switches PCB pin spacing has been corrected to manufacturer’s specification. So I will finalise the Rev 6 design in the next day or so and send it over to Synthcube.ġ. The Meanwell DCWN06A-15 DC-DC converter is absolutely fine powering the 1601 and has more than 120mA headroom on the +15V rail (the 1601 runs at 64mA in 16/1 mode and 77mA in 8/2 mode) and more than 160mA headroom on the -15V rail, and gets no more than slightly warm (measured at around 34C after an hour’s use). From elmegil’s photo above it looks like the descriptive text for the trimmers has been missed off in Jammie’s V5 so I’ll make sure all text is reinstated too. I’ll try to check out the cheaper Meanwell DC-DC converter in the next few days and if all is OK I’ll send the files over to you in a PM. Whether or not we create v6 from updating our current v5 files from jammie, or utilize the Kipling version, future pcb runs will have addressed this. Since Jammie has been out of touch lately we have not yet been able to fully sort it out. Kipling- we'd be happy to work with you for an updated PCB file, as we are close to ordering our next run.

It's an odd sort of error, and we have reached out also to Jim and Jammie for input. The issue only recently came to our attention- so we are doing some homework to figure out if its only this latest run of the Logan PCB files that caused it, or if it may have existed in prior runs with the V5 files. We are aware of the issue and of course looking for the best resolution for future runs of PCBs. Thanks all for the comments feedback and suggestions re: switch fit