Electronics Forum / Electronics / September 2005

There is enough material on the net to suggest that Pulsed
Electromagnetic Therapy MAY just work to relieve arthritic pain.
I am not convinced enough to spend US$1200 or so for a commercially
produced machine, but I believe it should be reasonably easy to build

Any one know of a good transistor equivalent website? i did a google search
but nothing helped & I was too busy with work, to carry on
searching...looking for equivalents to 2SD965 out of a Panasonic TV.

I note that in the latest issue of Select, that Farnell is selling an Ersa
Soldering station for 190 Bucks. I've been lusting after an Ersa for several
years, but this offer seems to be pretty much irresistible. Any thoughts on
this iron? Reliability, etc?

I have an SA-GX690 Technics AV stereo receiver (about ten years old) it
has never had any thing wrong with it before, but now it trips the
overload. If i listen to it at medium volume it's fine but after
increasing the level it shuts down and needs turning off then on again

Hi, all
I have reel-to-reel tape that I want to record onto CD. Can anyone help? I
am in Melbourne?
Rudolf

A heads up for anyone after a new lcd monitor.
I bought a 2405FWP in a bulk buy with these guys back in March/April
(before they setup a seperate company for bulk buys).
The 2405FWP is a fantastic monitor.

I have foxtel digital and recently its playing up.
Like when I go to some channels, it will not get them, and no signal is
displayed, but its intemitent, and not on all channels, but another day, the
channel will come up straight away.

Any idea where i can find (free) the schematics of this ampli

12VDC to 120VAC inverters using high frequency switching (no heavy
iron transformers) are now ubiquitous at ridiculously low prices.  I would
like to modify one of these to make a 12VDC to 55VDC DC-DC
converter.  I suspect they all have similar designs and am seeking a

Anyone have a good electronic capacitor conversion chart?. Excel format
would be nice, if available. Thanks in advance..

Howdy guys,
I have a Comair Rotron Tarzan fan which has a permanent split capacitor
style motor that I would like to speed control. The "fan controllers" from
HPM/Clipsal, will they work with a permanent split capacitor style motor?

I've seen a few web sites where better performance
into low R loads is achieved by paralleling op amps
together. Has anyone tried this?, I've tried some
TI NE5532 op amps: they run hot but seem to work.

Hoping somebody out there can point me in the right direction - I'm trying
to find a video for my GCSE pupils to show them modern electronics
manufacture and assembly techniques, including surface mounting techniques -
but anything would be of interest. Searched the net in ain so ...

I ordered some 7660, they cames BUT nothing works...  The reference on
the chips is SN76600P.  I think they are NOT 7660.  
Can You help please ?  I searched Google for 76600 : nothing to
find...

I ordered a couple of semis from Speedy Spares in Melbourne, by phone, at
3:35 PM yesterday.
The bag containing them was in my hands at 8:05 AM, in Sydney.
Delivered by Auswide.