Re: Light Bulb Designation, Vendors that Sell
Posted by HH56 On 2024/4/11 15:24:19
Quote:
Front park and turn signal did share the same bulb but used separate filaments. Power from either the turn signal sw or parking light could go to the same bulb. The 40 and 41 wiring diagrams show the wires to the large filament taped off but present for further use.
Prewar factory turn signal installs used the same 3 wire turn signal switch as did models thru the 22nd series. That switch is simply a single pole double throw switch so has no provision for separating voltage coming from the turn signal sw or the brake light sw. With brakes applied and both rear bulb filaments in parallel, if the turn signal was trying to flash one side, the solid on brake light power would take precedence and light both bulbs so flashing would not be seen. A separate bulb is needed in the rear for turn signals in cars thru the 22nd series and there are one and two bulb housings -- at least for the Clippers and 22nd series. Wiring shows senior 41 models might have the rear turn signal wire provision and there are different housings listed but my wire diagram is too poor a quality to follow path and see where the wires end.
In the 23rd series they went to a 6 wire switch which was the same one used thru 54. When you move the lever on that switch, turn signal flasher is connected to both front and rear bulbs which start flashing while the brake light is disconnected from the side that needs to flash and is sent only to the other side thus lighting a single bulb. By disconnecting the brake light signal a single filament can be shared.
Attach file:
41-48 turn signal sw3a.jpg (1,433.78 KB)
49-54 turn signal switch.jpg (160.50 KB)
Packard Don wrote:
Quote:The 23rd series 49-50 cars were the first Packards to share the same rear bulb filament for brakes and turnsignals.
All my 1940 Packard 110s and 1941 Henney-Packard 120 used the same element for turn signals and brake light. Granted that turn signals did not come with the 1940 but it was fully wired for it both front and rear so the front fender lights were also dual element.
Front park and turn signal did share the same bulb but used separate filaments. Power from either the turn signal sw or parking light could go to the same bulb. The 40 and 41 wiring diagrams show the wires to the large filament taped off but present for further use.
Prewar factory turn signal installs used the same 3 wire turn signal switch as did models thru the 22nd series. That switch is simply a single pole double throw switch so has no provision for separating voltage coming from the turn signal sw or the brake light sw. With brakes applied and both rear bulb filaments in parallel, if the turn signal was trying to flash one side, the solid on brake light power would take precedence and light both bulbs so flashing would not be seen. A separate bulb is needed in the rear for turn signals in cars thru the 22nd series and there are one and two bulb housings -- at least for the Clippers and 22nd series. Wiring shows senior 41 models might have the rear turn signal wire provision and there are different housings listed but my wire diagram is too poor a quality to follow path and see where the wires end.
In the 23rd series they went to a 6 wire switch which was the same one used thru 54. When you move the lever on that switch, turn signal flasher is connected to both front and rear bulbs which start flashing while the brake light is disconnected from the side that needs to flash and is sent only to the other side thus lighting a single bulb. By disconnecting the brake light signal a single filament can be shared.
Attach file:
41-48 turn signal sw3a.jpg (1,433.78 KB)
49-54 turn signal switch.jpg (160.50 KB)This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=270139