Springfield, MA
Hi Rolf-It is a standard 1156 car bulb (US) = "Philips 1156 Standard Auto Bulb (Pack of 2) Philips brand miniature automotive lamp. 26.9 Watts and 12.8 volts. S-8 size and shape, single contact bayonet base."
(Topic ID: 216984)
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Aquarius
Gottlieb, 1970
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Aarau
Hi currieddog
no luck - I visited the mentioned store - no answer like "Yeah - it is because ...". The people said "mysterious - aha - AC-Current - maybe kind of flash due to Hertz - or - or - or --- many "maybes" and when they started questioning the OHMs (1.5 to 2.1 Ohm) on the Aquarius-Relays - 1.5 Ohm is impossible - maybe 1.5 Kilo-Ohm: I stopped the discussion and asked "how about putting an resistor there (instead of the Test-Light)" - they adviced 8.4 OHM - 30 Watts. Hmm - maybe an 8.4 Ohm, 30 Watt resistor does the job - maybe - maybe not. For sure such an 30 Watt (!) resistor will cost a lot ...
I look in pinside at Your collection of pins - several Gottliebs - may want to buy (from PBR) an Gottlieb-A-9746-Coil as a replacement on the P-Relay - maybe with an new coil the problem vanishes ? - may want to buy an Gottlieb-A-9746-Coil when You are buying other stuff needed for another pin (?)
A lamp is good for maybe 2000 to 3000 hours --- when You mount the 24Volt-Test-Light (dim lighting) the life-span will be longer -
my suggestion is: Mount an Test-Light permanent - make an good documentation and live with the situation. I have no more ideas - I did ask experts in the store*** - there is nothing more I can do to help You.
experts in the store***: It is a store for Hobby-ELECTRONICS (making me an receiver or an amplifier or whatever --- it is not for EM-pins) --- Yes, they sell relays - to use in printed circuits --- such relays they know --- look here https://gfinder.findernet.com/public/attachments/40/EN/S40EN.pdf on page four - the 40.52 type (size about two sugar-cubes) --- I bought such relays 6VAC, 24VAC, 48VAC, 220VAC - nice handy, practical. See on page 9 "AC coil data" - 6Volt-Coil has 21 OHMs, 24Volt-Coil has 320 OHMs, 110Volt-Coil has 6900 OHMs means 6.9 Kilo-OHMs. So I accept when they question the 1.5 to 2 OHMs on 1970ies-pinball-relays.
Greetings Rolf
Quoted from rolf_martin_062:there is nothing more I can do to help You.
NOOOOO!!! Say it isn't so, Rolf! 
I actually do have a new coil. I bought it a while ago, but then went back and forth about whether it should be changed. Might as well give it a try. Maybe a tiny break in the wire or something.
Quoted from HowardR:If you'd like a phone call, PM me some contact information.
Quoted from rolf_martin_062:there is nothing more I can do to help You.
Quoted from currieddog:NOOOOO!!! Say it isn't so, Rolf!
Hi currieddog
I see no problem YOU have a permanent hooked-up LAMP on an relay --- I enjoy my Shangri La with an permanent hooked-up RELAY*** on a lamp --- rewarding me an Extra-Ball when the lamp lights-up --- see the JPG - it is very hard to get - when the red light below the text "Special" lights up: ALSO my RELAY*** pulls-in and I have gained an Extraball. See the wire to "my letter 'S' on the playfield" - a simple connecting wire to the tip of the lamp below the playfield.
RELAY***: It is an Finder-6VAC-Relay - see the link in post-52. Greetings Rolf
0Shangri La-my-Extraball-Relay (resized).jpgHi currieddog
have "old coil free of connecting wires" and have "new coil free of connecting wires" - then measure --- does the old coil has about 1.5 to 2 OHMs - and new coil has 0.2 OHMs ? Then I'd say: New coil is bad - buy another one. Greetings Rolf
Well, after all that ... the coil (P). And the plate was fairly cruddy, too. And I used the one I had after chatting with Steve at PBR. Thanks to everyone who checked in, esp. Rolf!
5 months later
Quoted from currieddog:Well, after all that ... the coil (P). And the plate was fairly cruddy, too. And I used the one I had after chatting with Steve at PBR. Thanks to everyone who checked in, esp. Rolf!
So what was the eventual solution? Replace the P coil ?
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