I got these four starters off of eBay a while back. These were offered to start 40w lamps down to 0 F. Wether or not modern low mercury lamps will actually allow these to perform the task they were designed for is the question. I believe these came out at around the same time the two pin glow starter did (1939), but I am not certain. I know the y were available by 1942 from my fluorescent lighting manual.
|Socket Type:||4 Pin|
|Download:||Download this File|
|File Size:||620 KB|
|Date added:||Apr 01, 2020|
|Dimensions:||2464 x 1848 pixels|
|Date Time:||2020:04:02 01:30:12|
|DateTime Original:||2020:04:02 01:30:12|
|Exposure Bias:||0 EV|
|Exposure Time:||1/30 sec|
|Focal length:||4.15 mm|
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Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.