[Ron Ramirez]

PHILCO SPEAKERS HAVING NO HUMBUCKING COIL

K - 8" - models 20, 21
K-2 - 8" - model 90 (early - 2-45)
K-3 - 8" - model 70, also model 90 (mid - 1-47)
K-4 - 8" - models 470, 490 (1-47)
K-5 - 8" - model 90 (late - 1-47)
E - 8" - model 86
F-10 - 8" - models 65, 76
G - 10-1/2" - models 65, 76, 87, 95
H - 10-1/2" - models 77, 96
H-2 - 10-1/2" - models 90, 112 (early - 2-45)
H-3 - 10-1/2" - model 90 (mid - 1-47)
H-4 - 10-1/2" - model 112 (late - 2-47)
H-5 - 10-1/2" - model 90 (mid - 1-47)
H-6 - 10-1/2" - models 90X, 112X (late - 2-47)

Philco began to use the humbucking coil in their speakers starting with their 1932 model line (71, 91, etc.).