[Orion] ORION 1 questions : 1° Main-RX 500Hz & 250Hz Roofingfilter mods 2° Sub-RX Roofingfilter

[F3WT]

Hi all,
1° It seems to me that putting off serial  second stage amplifier- 
bank for roofingfilters 500Hz and 250Hz and paralleling them with the  
others ( 1kHz, 1.8; 2.4; 6 and 15kHz) does seem to be  an easy  mod  
albeit a delicate SMD operation - for the hardware part ( merely  
unsoldering or removing right  0.1MicroF capacitors of second bank  
and paralleling them with the first bank). Does anybody know if this  
has been done?
  As well as the sw or hw mod to disable the first bank when the  
second is on?

2° A reseller in Germany  sells ( probably Inrad) roofingfilters for  
the Sub-Rx. Anybody knowing these? Has Bill's (W4ZV) former survey on  
this succeded?


Thanks for any hint.

Pierre
F3WT