[Boatanchors] B&W 850A Doc(s) needed

Jim Wilhite w5jo at brightok.net
Tue May 9 17:40:58 EDT 2006


The model 850A is the wire model for 1 or 2KW using 2500-5000 ohms plate 
impedance the 852 is the tubing model for plate impedances from 1500 to 3 K 
ohms.  The 851 is the 250 watt version for 2500 to 5 K ohms.

73  Jim
W5JO




> Bob, which one do you have? There was an 850 and an 850A. One had copper
> tubing for the main coil and the other had wire and more turns for the 
> main
> coil. I can never remember which model is which.
>
> The difference is that the one with the copper tubing (and fewer turns) is
> for low impedance plate loads like a 4CX1000 etc. The one with the wire 
> coil
> has more turns and is for tubes like 4-1000 or a pair of 4-400's with 
> higher
> plate impedance.
>
> 73
> Gary  K4FMX
>
>

>>
>> Subject says it all.  Need to get the info to know EXACTLY how it is
>> connected.  Bought it used 4 or 5 years ago.
>>
>> Bob - N0DGN
>>
>> --
>>                        Bob Bethman - NØDGN




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