Electronics Forum / Equipment / September 2004

I've got a few bits & pieces on eBay at the moment.
Collection from Oxford UK only.
Philips PM3296 Scope
HP16500A Logic Analysis System

Im need a low cost universal device programmer. Its for hobby
use so Im looking for a low cost one. I would like to be able
to program these specific devices at a minimum: GAL22V10,
27/28/29C256, 89C51, 24C256. The Xeltek Superpro-Z,

It looks like my faithful 2235 has bit ths dust! When powered on, the
power LED only pulses on/off about every second and the CRT has no
light. Using the Service manual, I got as far as restoring the power
LED operation by disconnecting the lead from T948-p23 to U975, which

I recently acquired a Nicolet 3091 digital storage scope, vintage
circa 1982. The manual is amusing; for instance, it says that the
device has 16x12 of RAM, and a single screenful is 4096 12-bit words -
it is possible to dump out an entire screenful on the RS232 interface,

I have looked in the usual places (to no avail) for info on an HPIB
card, 27209, to see if it's compatible with the everyday IBM clone CPU.
Also, what software is out there that's compatible with it to access an
HP8563E Spectrum Analyzer.

Can anyone show by example how to calculate the R and C values if you have
both real and imaginary parts of the impedance Z?  I do not have the R and C
values but I have the Z(Real) and Z(Imag).
Also is there say a BASIC program that can say produce the correct R & C

    I was hoping someone could send me in the right direction to find
information on a low frequency detector.
    Either a low cost purchased unit, or the schematics to build one.
I am trying to detect in the 0- 30Hz range.

My friend found for me what appears to be a cheap oscilloscope on sale
at a used parts place. He took down some details for the Tektronic
scope's three modules
5110 (the 2 chan thingy?)

(Response to Petrus Bitbyter in sci.eletronics):
Original message:
I constructed the EPROM Emulator published in Elektor magazine in the
SEPTEMBER 1992 issue.  It worked quite well under Win98, but lately I

I have searched the web and found many lists of dielectric constant lists.
However, non of them make ref. to where they acquired the information from.
1/ Can anyone tell me where I can find the dielectric constant tables for
different materials at dif. temps.

If I have the Phase then say 40deg and the magnitude say 10 then how can I
convert that into capasitance.
I have the following circuit:
___SIGGEN_____

Cosmic Radio Signals can be  polarized at 91mhz (fm); 160mhz (vhf); 610
mhz ( on channel 78uhf-tv) by keying a cb microphone over a radio receiver set
on these radio channels with your home equipment.
These are known cosmic radio sources from outerspace from

   Does anyone have a circuit for a phase meter upto 1MHz?
Cheers
Wayne

Does anyone know an affordable reader/writer that would allow me to read the
code off my only remaining vehicle key and use that code to program a
'blank' transponder?
The manufacturers charge the earth for a replacement,  and this sounds like