Just a reference for me - this is specifically for this layout mounted above the pots.
MKI TONE BENDER OFF-BOARD WIRING PLAN
The final soldering of the board to the pots has not been done yet - that will be done when it is mounted on the actual enclosure lid, as opposed to the dodgy piece of cardboard that I'm using as a wiring template.
These little clips are handy for securing the reasonably heavy Belden shielded cable I'm using. It has its own ideas about how it would like to bend. I could probably warm it up and reshape it, but I don't mind. It's normally a two-core cable with shield, but I remove one core and use it for other purposes.
If you're wondering, transistors: Q1, OC71. Q2, OC44. Q3 NEC ST303 (later removed and replaced with an OC71)
This looks really nice. How did you paint the enclosure? Spray Paint?
ReplyDeleteThank you. Yep - the top is a blend of dark grey and gold hammered spray paint.
ReplyDeleteWooooow! It looks awesome! You first sprayed with the dark grey and then (once dried) sprayed with the golden hammertone? This is the schematic with the 2 22uf, isn't It? I think It has a lot more low end... I have to try this one and make a stoner/doom version. Maybe make a mash up with this, but with the tone control from the Supa MKI prototype... I need to buy some more Veroboard
ReplyDeleteHey Mister Hate - you have to spray heavy coats while they’re wet for the paint to mix (immediately). It’s tricky and results are not consistent, but it’s nearly always interesting.
ReplyDeleteYes, this has 2 x 22u caps. It has a bit more bass, which I tend to like. Both versions have their charms.
I am wondering, for this built you used carbon composition resistors and sometimes you use carbon film resistors. Any preference? I am asking because as my enclosure from fuzzcases just arrived I am currently making my list for a built.
ReplyDeleteHello,
DeleteI prefer carbon comp in a MKI just because it looks the part. No other reason.
I use carbon film on a lot of other projects just because they are easy to get hold of and still have a vintage look.
I mainly use metal film for anything on regular size vero due to space requirements.
So just an aesthetic preference. If you buy carbon composite resistors, be sure to measure them before you use them. I’ve found some can be quite far off.
Regarding the carbon comp resistors, do they produce more noise in a MK1 built?
DeleteHello. I’ve never made a proper comparison. You’d need a couple of breadboards to swap the same set of transistors between two identical circuits to even have a hope of measuring it.
DeleteAt a guess, I doubt it matters when compared to germanium transistor noise.
Great, thank you! And I assume you use 1W carbon film?
ReplyDeleteYes, 1w just because that’s what’s available in the local electronics store. I’m probably going to buy a stock of 0.5w just to trim the size down by a few mm. I still want the large, but the ones I’m currently using are a touch too wide when sitting next to each other.
Delete