Electronics Forum / Repair / September 2007

I am restoring a Seeburg USB 2 Jukebos that uses these in a display
2 pin miniature 12VAC bulb
Can't find it anywhere and would appreciate any help that you can offer on
locatingthem

I have an old Schwinn stationary exercise bike which has rubber buttons on
the console for timer, speed etc. The buttons stopped working and taking
out the button, I found the buttons are basically made of rubber with hard
plastic core which presses against the circuit board. There ...

I have just got a Gould 465 DSO (same as 420 & 450 but 100MHz
bandwidth).
With the input grounded the trace is never dead straight (as with an
analogue scope) but exhibits a very, very tiny amount of vertical

I'm looking for an online store (USA) to buy either a small eddy
current brake or a small hysteresis current brake.
Thanks.

Tektronix  2445,  No EHT , oscillator board 'failed' common faults ?
After many years of use, the scopes failed ..
Everything was fine, then lost  the trace....On checking, the 750 mA
fuse on the  -15v un-reg line had blowen,  turns out the A9 , eht

Can anyone assist with schematics for this critter? It doesn't appear to
have a major problem. Likely in the PSU for the tube.
Trevor Wilson

I have to NAD T762 on the table. Both with burned out (shorted) 5,1V
zenerdiodes (D718).
I have replaces them with a new 5W type instead of the original 2W.
But the diodes is getting extremely hot and I can't figure out if this is ok

I've got a handheld meter with a LCD display (Sunpro Tachometer) and
some of the LCD segments are getting flaky.  Assuming it's put together
with a zebra strip, would I be better off trying to take it apart and
clean it, or wait until it becomes intolerable first?  In other words,

Hi Group, Can someone help please...? I have a laptop HP notebook
#N3370 SER...F1929A. There are some components on the motherboard
that
are fried, I replaced most of them, but I cannot identify one, it is