CurtPalme.com Home Theater Forum

Artful Dodger · Joined: 22 Jun 2018 Posts: 1 Location: United Kingdom

Hello, I have an Electrohome Marquee 9500 LC Ultra that has started gathering “fungus” on the blue and green guns. Does anyone know of anyone in London, UK that could help me out repairing it. I love CRT projectors and use them in exhibitions, but am afraid of destroying it if I try myself. Any help much appreciated.

Also recently when I turn it off the blue produces this weird ghostly soft firework. Is this something to worry about??

Cheers.

**Curt Palme** · Posted: Fri Jun 22, 2018 10:57 pm Post subject:

You're most likely on your own, CRT is for all intents and purposes dead, so everything is DIY. There was a guy named Andy in London, but I haven't heard from him in years.

There's instructions on the main site how to defungus the tubes. I have a brand new G and R tube that I'd sell for $450 USD for the pair, plus about $160 shipping to you. NEw in the box, 2011 vintage. I do not have any blues though.

Your blue tube has electron contamination in the gun, if the blacks are still black without flickering, ignore it and continue using it.

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

Hello

Get a quart of household ammonia and some distilled water. Pull the tubes out, drain the coolant, flush with distilled water, then slosh some ammonia around in the coolant chamber for twenty minutes. Flush again with distilled water and put in fresh glycol. It's that simple. It's the technique i now use.

Also go to stainless steel fill hole screws if not already.

CIR Engineering · Posted: Tue Jul 03, 2018 1:27 am Post subject:

I haven't worked across the pond for a while, but I'd go. Tricky part is you'd need to cover the travel expense.

craigr