[Amps] Henry 3k Teardrop Amp

[SavanaPics at aol.com]

I have a Henry 3k with teardrop meters. Evidently this is one of the first  
the produced as most of the 3k information I can find has square or 
rectangular  meters on them even though they are posted as 3k's also. None the 
less. The  reason for this posting is two fold. One that I have an original 
manual and  if anyone needs a copy, I can email them a PDF of it.
 
The second is that The blower is not working, so I need to remove the RF  
deck from the amp.  There are two wires (filament), and a multiple pinned  
plug attached to the RF deck,  There is also a smaller plug that you  unscrew 
, but it does not seem to want to come loose.. Does anyone have any  
experience with this amp and can tell me how to remove this plug so I can take  the 
RF deck off ?
 
Eddie Turner, kc4awz