[sdiy] EMS parts

[Magnus Danielson]

From: "gino wong" <wonggster at gmail.com>
Subject: [sdiy] EMS parts
Date: Thu, 30 Aug 2007 14:47:50 -0400
Message-ID: <18ef0b50708301147j27c1b0c6te26841809bcb955d at mail.gmail.com>

> Anybody ever have that upper board A burned component lifter trace
> problem on a VCS3 or Synthi A ?  I have and have to order up several
> resistors.  One is s cement and the others appear wirewound but I do
> not know the US equivalents (Mouser # hopefully).  Apparently this
> damage can happen to any of us who do not do mods to their synthis
> (eventually)..   There is not a lot of advice that's real specific on
> the Hinton pages.

Especially if you have Mk I Synthi-A or VCS-3 this is a problem and especially
on the early variants of Mk I. Moving away the effect burning transistor from
the board A onto the Synthi-A aluminium rimb and removing the heatsink for that
transistor (which creates a heat-pocket for the rest of the components) is a
NEED TO DO thing if you have the older variants.

> Is there a reasonable source for replacement knobs these days.

The main trick is really to rebuild it physically but using the same
components. Not that hard really. Change caps!!!!

The PSU is "weak" but part of the character.

Cheers,
Magnus