PDP-8/E bulbs

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Mon Dec 3 14:41:58 2001

On Dec 3, 7:51, Tom Uban wrote:
> I get replacement bulbs for my PDP11 at the local electronics store. If
> you know the voltage, all you have to do is match the base. You may also
> be able to find them at: http://www.digikey.com

Hmm, I'd not be too sure about that. I believe the correct bulbs are 12V
or perhaps 14V, T1-3/4 bi-pin, 0.04A (that's 40mA). I've seen 14V 80mA
bulbs in a few places, but I'm not sure if they would be "safe" in the
panel - they'd draw twice the current and I'm not sure if the driving
transistors are rated for that. Anyone know? (I have a panel, but not a
print set).

If it's any help, I found some of the proper bulbs for my -8/E recently,
and they are marked "OSHINO-1 12-09169" or "PL10161 1209169". I think
the 12-09169 may be the DEC part number. On test, they draw between 30mA
and 35mA at 12V, and between about 35mA and 40mA at 14V.

The ones I've found in the Farnell catalogue (cat no 329-216) seem to be
made by EBT Technologies, part no 7382, and they're 14V, 80mA, 1.12W, 3.8
lumens, nominal life 15000 hours, priced around 50p (about 72 cents)
depending on quantity. I found the same bulbs slightly cheaper in the CPC
catalogue, for those of us in the UK.

Pete						Peter Turnbull
						Network Manager
						University of York
Received on Mon Dec 03 2001 - 14:41:58 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:33:37 BST