10-12-2008, 11:10 AM
I've never seen a Philco 90 that used any rubber in its dial drive mechanism.
These sets, as well as Models 20, 35, 36, 46, 50, 51, 52, and 70 use a friction drive mechanism. It depends on friction between the tuning shaft and the dial assembly to work.
Naturally, being dependent on friction, as the parts wear over the years from constant metal to metal contact, friction is lost; resulting in a dial mechanism that slips.
Philco switched to using dial cord in Models 71 and 91. Not dependent on friction between metal parts, cord drive is more reliable overall.
These sets, as well as Models 20, 35, 36, 46, 50, 51, 52, and 70 use a friction drive mechanism. It depends on friction between the tuning shaft and the dial assembly to work.
Naturally, being dependent on friction, as the parts wear over the years from constant metal to metal contact, friction is lost; resulting in a dial mechanism that slips.
Philco switched to using dial cord in Models 71 and 91. Not dependent on friction between metal parts, cord drive is more reliable overall.
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Ron Ramirez
Ferdinand IN
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