Having recently bought (eBay) a Portascribe OHP for use in a simple home cinema setup, I was disappointed when the bulb blew, though not entirely surprised. It's got a label on it, saying it takes 240v, 650w DYR lamps, so I bought one - & spare for next time it blew! I got the lamps this morning, & they didn't look the same as the original. I managed to fit one, as they were similar enough, and it lit up very dimly! Out with the multimeter, & it seems there's only 24v across the lamp... interesting.
On (very!) close inspection of the old lamp, it's a 250w, 24v item. I can see some non-standard looking soldering in there, & the second stage of the power switch does nothing, so someone obviously knows about the change in type!
My questions;
Dya reckon I can just find a 240v feed in there somewhere & bodge the bigger bulb in, or am I going to strugge with the reflector etc?
Why would someone have changed it??
How much better is it going to look when I get a decent sized lamp in there?! I'd never have bought a 250w projector intentionally 🙂
Thanks guys; I've been looking round here for ages & you've been loads of help already - this is just the first time I've had to post!
On (very!) close inspection of the old lamp, it's a 250w, 24v item. I can see some non-standard looking soldering in there, & the second stage of the power switch does nothing, so someone obviously knows about the change in type!
My questions;
Dya reckon I can just find a 240v feed in there somewhere & bodge the bigger bulb in, or am I going to strugge with the reflector etc?
Why would someone have changed it??
How much better is it going to look when I get a decent sized lamp in there?! I'd never have bought a 250w projector intentionally 🙂
Thanks guys; I've been looking round here for ages & you've been loads of help already - this is just the first time I've had to post!
Some pictures...
& the new lamp's on the left:
Cheers 🙂
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
& the new lamp's on the left:
An externally hosted image should be here but it was not working when we last tested it.
Cheers 🙂
- Status
- Not open for further replies.