[Boatanchors] J.W. Miller coil ID - B 320 - B 320A

Bob Kulow kulow at epix.net
Sat Oct 30 21:52:06 EDT 2004


Anyone have a handle on these two model Miller products? I found a couple of
unused ones.
B-320 and B-320A
Both are marked:
2100 - 6300 KC

<snip>

The Miller B-320-series coils comprise a set of antenna, RF and oscillator
coils for 2.1 - 6.3 MC.

The B-320-A is the antenna coil, the B-320-RF is the RF coil (mixer grid)
and B-320-C is the oscillator coil for a 455 kc IF.  According to my 1979
Miller catalog, there is no B-320(nothing) so yours must be one of the three
listed.  All the coils resonate with 365 pf variable cap.

The B-320-C oscillator coil uses a .0016 mfd cap as a padder with the 365 pf
variable cap.  It is a two-winding coil used in an Armstrong type
oscillator.

73
Bob WA2UEH


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