Ernst,

the reason is very simple: Originally the spring system was mounted to the
pc board (you still see the mounting holes on the pc board) but later we
decided to enclose the spring system unassambled so that it can be placed
anywhere within the system. We still have about 50-60 A-199 modules with the
10HP front panels left. After this we plan to change the front panel to 8
HP. Maybe we will manufacture some additional A-199 front panels with 8HP so
that 10 HP panels can be replaced. But this will happen not before end of
2005 or early 2006 as we sell only about 15-20 A-199 every month.

We tried several shieldings (up to a completely closed box made of 1.5 mm
steel) but found that they did not attenuate the magnetic field
sufficiently. We never tried mu-metal as it is very expensive and our
housing and front panel manufacturer had this material not in stock. I'd
recommend the PSUII as this solves the problems. If you are a bit
experienced with electronics and mechanics you could even replace the
standard transformer by the ring core transformer which is available as a
spare parts. But recommend this only if you have experience with such things
(danger to life !).

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von Ernst Karel
> Gesendet: Donnerstag, 13. Oktober 2005 12:28
> An: Doepfer_a100@yahoogroups.com
> Betreff: 1 trimming faceplate on A-199 spring reverb
>
>
> The A-199 spring reverb module is 10 HP wide, but I can't see any
> reason why it couldn't be
> the standard 8 HP -- the electronics are less wide than that and
> there are no knobs or jacks
> on the right side of the faceplate. I'm actually thinking about
> trying to trim the faceplate
> down to 8 HP in order to get more space (I could fit in an extra
> 4 HP module on that row if I
> did).
>
> Is this a stupid idea Does anyone have any experience doing this
>
> thanks,
> Ernst
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> Yahoo! Groups Links
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