[Heathkit] SBA-104-1 and another Question

[Donald Spoon]

1.  Does anyone know where I can get my hands on the SBA-104-1 noise 
blanker board for the Heathkit SB-104?  I have been monitoring Fleabay 
for quite a while, but I have not seen any listed separately.  Is there 
an alternative??

2.  I have recently resumed operation on the HF bands with a 88' Doublet 
fed by 450 Ohm ladder line.  It works fine for me on 80 - 15 Meters.  I 
have found that the LL that I have fits nicely into the Gray, 1" PVC 
conduit found at Lowes / Home Depot.  I am using some of the shorter, 
curved sections to provide a support function at turning and end points 
presently without any adverse affects that I can determine.  I was 
wondering if I could use the conduit to "pipe" my ladder line where I 
wanted it to go (underground, up an outside wall, under a deck, etc).  
Does anyone have experience with this, or even concerns based on 
theory?  I am looking for both positive and negative aspects of doing 
this... (Weather Protection = Good, Increased line loss = Bad, etc).

Cheers & TIA,
-Don Spoon-
K0APK