TTSH, Gate Booster mod

If you’re all new into how analog synthesizers can be controlled, you may first want to take a look at this Wiki article on CV/Gate for some jargon busting. Other than that, let’s dive right in.

Among the first electronics mod I wanted to add to my TTSH was the Gate Booster. To fully open the ADSR envelope generator of TTSH a +10VDC gate needs to be applied, thus in it’s stock config the envelope can’t be fired properly by using eg. any external gear that outputs a +5V gate. Add to the common CV/Gate specs, the TTSH envelope generator also needs a trigger signal (very short pulse) to work properly. This can be used to restart the envelope without disabling gate signal.

So what the Gate Booster does is, it converts low voltage level gate signals to higher voltage and generates the trigger signal from the gate input. The particular circuit board I bought for myself is this modified version (sold by Oshpark) with a socket for a Midimplant MIDI-to-CV/Gate converter board. Having MIDI (keyboard) input just made so much more sense than eg. building a CV keyboard like the Arp 3620.

Gate Booster board all populated.

Gate Booster board all populated..

Read More…

TTSH, speaker baffle mod

This was a quick “let’s see what happens” kind of mod for my TTSH.

In their stock config, the TTSH loudspeakers are supposed to be fastened to the circuit board, which is then fastened to the front plate. Handy approach eg. for having the electronics as a entirely separate, single ‘module’ for servicing etc. But problem with this is that it leaves a ~12mm gap between the driver and the front panel. Read More…

TTSH, gettin’ sticky wit it

Alright on to some finished surfaces with the TTSH build.. This entry is all about tolex, from someone with zero previous experience on applying / handling technique. If you ended up here looking for some kind of advice, this may (or may not) be a good read. You’ve been warned! :)

Do also check out what has happened in this project previously, links are at the bottom.

What I ended up with after all the sticky tolex biz

What I ended up with after all the sticky tolex biz..

Read More…

TTSH, on the case… AGAIN

TTSH, case frames assembled

Can’t say I felt like jinxing this project in the previous post but apparently I may just have. Read More…

TTSH, on the case

Picking things up from the initial design of my TTSH case, I sure was itching it to get down with some hands-on work. First up, cut the boards which make up the basic frame..:

Frame parts hot off the table saw.

Frame boards hot off the table saw.

Read More…