This is topic Elmo ST 1200 bulb questions in forum 8mm Forum at 8mm Forum.

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Posted by Tom Johnson (Member # 841) on December 20, 2018, 12:43 AM:
I have two Elmos: ST 1200D and ST 1200HDM. Both have been dormant for several years, and when I fired them up, no lamp action on either. I don't think there's anything wrong with the lamps, but not sure--they were fairly new and worked fine last time I used them. The fuses are fine. I guess I'll get replacements, though that might not be the issue. So: any advice on what else it might be--they power up and run, and sound seems to be fine. ALSO: when buying replacement lamps, is it the same lamp for each machine? (I see separate listings on ebay for lamps for these projectors) AND: they are selling for around $40 a pop. online I see this for $9: OSRAM EFR 64634 HLX 150W 15V MR16 Tungsten Halogen Lamps. That matches the empty box I have for the last lamp I bought. Is that not the same lamp...this dummy would be grateful for any info/advice!
Posted by Mark Mander (Member # 340) on December 20, 2018, 01:36 AM:
Hi Tom
It's quite possible it's the bulb holder that might not be making proper contact,they can corrode or just tarnish,if you slide the bulb in and out a few times the bulb could spring into life,also give the bulb end terminals a clean/scrape.

All models share the same bulb,the $9 or possibly cheaper bulbs will be fine,Mark
Posted by Maurice Leakey (Member # 916) on December 20, 2018, 04:33 AM:
This is the UK company where I buy my Elmo lamps. You can see that they are the same which you describe. The UK price (with Tax) is £6.54 UK pounds which equates to about US $8.30.
Posted by Mathew James (Member # 4581) on December 20, 2018, 07:35 AM:
it is more rare for EFR bulbs, especially Osram to just blow from no use. If it was one bulb i would thing, yes, okay...but both?
I agree with Mark that they may need to be reset in the socket as the contacts may have corroded just enough. If it is both bulb, i will be surprised, but thankfully these are easy and cheap to get(4.99$).
bulbs for elmo
Posted by Shane C. Collins (Member # 5641) on December 20, 2018, 09:18 AM:
You could also try spraying some contact cleaner inside the bulb sockets. Just a little though! This may clean out any corrosion that has built up inside the sockets over the years.
Posted by Rob Young. (Member # 131) on December 20, 2018, 09:32 AM:
I agree; the ST bulb contacts are prone to oxidise, so removing the bulb and giving them a clean as Shane suggests will probably sort it (and perhaps the pins on the bulb itself).

Just remember to turn the power off!
[Eek!] [Roll Eyes] [Smile]
Posted by Will Trenfield (Member # 5321) on December 20, 2018, 05:12 PM:
This seems to be a common problem with these bulbs. Oxide can build up on the contacts and the bulbs pins if a projector hasn't been used for ages. I bought one on eBay where the seller said that it needed a new bulb. A quick clean as suggested above was all that was needed. The bulbs are cheap enough over here but, per they can last for up to 50 hours. Spend about twice that and some makes are rated at 500 hours.
Posted by Tom Johnson (Member # 841) on December 20, 2018, 06:10 PM:
A scrape of the pins on each bulb and they both work--thanks so much everyone--so nice to have an easy fix!

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