old roland din connector

[Trevor Page]

Andreas,

Should have checked component availability *before* making a copy of the
tb303 pcb! First the potentiometers, now the DIN socket. You might find that
other components aren't easily availabe that will fit directly into your
pcb. It would have been better to source modern components first, and then
design your pcb to accept these!

The socket you describe is the sync24 (or 'din sync') socket. Not sure how
easy it would be to get a replacement that the pcb will accept without
modification. Have you tried getting one from Roland? That might be your
best bet if you've not tried already.

Know what? I think it would actually be *better* to have a seperate switch
on the back to select between sync and internal clock. Why? Because if you
decide to switch from external sync to internal clock or vice versa, you
don't have to pull the plug out! You you'd just fit an ordinary 5-pin din
socket on the pcb (if you can) and mount a switch to the rear of the case.
Simply flicking the switch would be much easier and less hassle.

Just a thought.

Trev

=========

Trevor Page BEng (Hons) AMIEE

----- Original Message -----
From: *Star Project <ampe at swipnet.se>
To: DIY skicka Lista <synth-diy at node12b53.a2000.nl>
Sent: Thursday, November 09, 2000 10:05 PM
Subject: old roland din connector


> Hi!
>
> In the old Roland TB-303 there is a kind of
> special DIN socket. I functions as a switch
> for the clock signal and puts the tb's clk
> to gnd when a cable is connected. the same
> goes for the run/stop signal aswell.
> However coming acroos one of theese have proven
> to be very difficult. I know there are sockets
> that can do this but the problem is that they
> are mounted in another way. they have the switches
> on the sides while the socket in the tb has them
> behind the pin connectors.
> If anyone have seen a socket like this please
> tell me where. Modifying the pcb is not an option
> since it simply cannot be done.
>
> Thanx / Andreas H
>
>