Parts arrived  today with my new DC-30 kit. I hope to find time over the holidays to get it all finished and tested, but the temptation to start building the DC-30 first will be difficult to resist.

Fitted it all together, the contacts on the tranny were mighty close to the lid so had to insert some foam pads. Mounted it in the shell I made for it.

The the time came to do a full test, and lo and behold it worked !! I have had to use some balanced patch cables that are a bit too long and could be picking up some noise. Will set it up properly with some colour coded George l's so its all neat around the back. The noise is like a low hiss and is not really noticeable.

So far its very encouraging, not had much time to do a great deal of testing, but being able to bypass is worth its weight in gold for the purpose of A/B'ing the sounds, just flick the bypass switch and both the Klein and any FX are out of the loop. I'm finding the Klein is a little too bright with both switches on and just maybe theres a little less bottom end, but I'd say I'm pretty happy with the sound so far.

I think I'm going to find the G# annoying though. Its too difficult to know what patch has what effects/levels applied. I'll have to make up a laminated card that lives in the bottom of the rack unit. I intedn using the G-Switch to swap patches, but that switch won't live on my board, it'll just sit either on top of the unit or on the floor next to it. So far though the reverbs and delays sound nice and the chorus isn't bad either, good enough to allow me to get rid of my Boss unit.

Looks great Hywel, hope it sounds good too at the band high volume situations.
Cheers

Final photo showing mods to bypass/relay circuit.

OK chaps, theres one error on the layout, I've connected tthe incoming signal to the wrong pole of the main bypass switch. Its just on the drawingnot on the real thing. Will edit and post new one asap.

More seriously ther is a volume drop even in bypass compared with when the unit is disconnected and looking at the wiring the Recovery pot is still connected and is draining some signal  I guess. The recovery pot behaves strangely when in FX mode also, it gets louder to about 2 o'clock then loses a small amount of volume therafter.

Might have to rethink the wiring

I have reworked the drawing and I'm going to use two relays so I can sort the problem properly. One relay will switch both the send and return signals so i get a proper bypass and the other realy will do the footswitching and LED's.

Will order the relay board from Nik and put the wheel in motion. I will also need to replace the hardwire bypass switch on the rear panel with a 3PDT version in order to separate the return signal completely.

Wll keep you posted.

Hywel,
Are you running both the Sonic Maximizer and Kleinulator together? What do you set the level on the G Sharp at? Thanks for sharing this with us.

John