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Introduction
Introduction
The purpose of this page is to highlight the differences between these particular 1963 and 1968 702B Princess Phones.
On This Page
On This Page
- 1963 vs. 1968 M1A Ringer
- M1A Ringer Clapper to Gong Distance Differences
- M1A Ringer Volume Control Setting Differences
- 1963 vs. 1968 Wiring
- 4010 B Network Wiring Differences
- 1963 vs. 1968 Wiring Comparison
- 1963 vs. 1968 Videos
1963 vs. 1968 M1A Ringer
1963 vs. 1968 M1A Ringer
M1A Ringer Clapper to Gong Distance Differences
M1A Ringer Clapper to Gong Distance Differences
1963 M1A Ringer (After Third Adjustment)
Clapper to gong distance > 0.020 inch
1968 M1A Ringer
Clapper to gong distance = 0.019 inch
M1A Ringer Volume Control Setting Differences
M1A Ringer Volume Control Setting Differences
1963 M1A Ringer at "soft" setting.
1968 M1A Ringer at "soft" setting.
1963 M1A Ringer at "loud" setting.
1968 M1A Ringer at "loud" setting.
Note that the volume control metal piece touches the gong of the 1963 M1A Ringer in both the soft and loud settings, but only touches the gong of the 1968 M1A Ringer in the soft setting.
1963 vs. 1968 Wiring
1963 vs. 1968 Wiring
4010 B Network Wiring Differences
4010 B Network Wiring Differences
1963 Pink 702B 4010 B Network
H --> A
1968 Light Beige 702B 4010 B Network
H --> Insulated
1963 vs. 1968 Wiring Comparison
1963 vs. 1968 Wiring Comparison
1963 vs. 1968 Videos
1963 vs. 1968 Videos
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