Hello All,

I am looking for a service manual and/or copy of one for a Cushman CE-50A
service monitor.

I’m more than happy to contribute to any costs.

Thanks

–jj
felix1…@attbi.com

Bezeq and its subsidiaries offer a wide range of telecommunications
surplus, used equipment and components:
Antenna & Antenna Accessories,Cables,Carrier Transmission
Equipment,Computer Equipment, Data Edge Equipment,Electrical
Motors,Electrical Power and Air Conditioning
Equipment,Mainframes,Masts,Measuring Equipment,Mobile
Equipment,Optical Cables,Optical Transmission Equipment,Power
Convertors, Printers,Private Telephone Switches,Public Telephone
Switches,Routers,Servers,Street Cabinets, Telephone Edge
Equipment,Telephone Switching,Time Synchronization Equipment,Tools and
Accessories,Transformers,Transmission Equipment,Transmitting Equipment
.

Bezeq obtains telecommunications-related service and equipment from
numerous manufactures/suppliers as:
Nortel, Alcatel, Alcatel Cable, Newbridge, Lucent Technologies, Cisco,
Siemens, Marconi, ECI, Inowave ECI, ADC Telecommunications, Orchid,
Showa, Superior, Motorola, IBM, Compaq, Sun, HP, Toshiba, ACER,
Oracle, 3COM, NDS, Bay Networks, Redback, RAD-Bynet, Terayon, Ascom,
ITS, Miteq, Vertex, Ness AT, Forsoft, SAP, Novell, Amdocs, EMC2,
Microsoft, Caterpillar, F.G Wilson, Cummuns, Elco, GNB, Exide, Etc.

check our site: http://www.bezeqsurplus.com/?source=news
or contact: Mr. Gabel Shlomo
shalom…@bezeq.com

In article <1016353018.338…@ns.donapex.donetsk.ua>,
test <t…@test.net> wrote:

>The Sexual revolution did not solve the sexual problems, but has done their
>inevitable in lifes of each modern person. This has brought  the situation,
>in which qualities of sexual relationships, is replaced by their quantities
>that create the way of spreading the AIDS DISEASE. "King naked!!!". Future

————————
Go the fuck away, taliban asshole.
Steve

Hi,
We are interested in setting up a lab facility to diagnose and repair
internal modems, motherboards, sound cards and other similar PCBs.

We are just focused at identifying the faulty ICs, transistors, and
chips on the surface of the board, and not interested in going inside
the layers of a PCB.

Can anyone recommend us the basic equipment needed like meters, analog
scopes or PC based scopes, etc. We might be hvng some of the basic
equipment with us, but not sure. So all the help no matter how basic
it is will be much appreciated.

Regards
Omar
Phone +92 300 8449810

When I got done taking a few levels of hardware apart to find out
why the output amplitude was erratic (to say the least), I found that
the rather eccentricly designed attenuator assembly had a broken
tiny spring contact.  How it could have broken, and where the other
half is, are mysteries I don’t think will ever be resolved.  But to
fix it I need a tiny little spring contact.  Of course Agilent hasn’t a
clue
since it’s "off support."  But there are 21 of these things in the unit,

and surely someone somewhere has a spare?

Thanks
Richard

- Hide quoted text — Show quoted text -

Andreas Belim wrote:

> I need help with this TENS circuit (attached).
> I am an advanced hobbyist at best, not a circuit designer, so I need very
> specific help.
> The circuit was designed to run on two batteries, however that does not have
> enough "kick" for me. I need to power it with a 9 to 12, or 16 volts DC
> adapter and would prefer it to go over spec (really kick), I can limit the
> max output once I find my max "input" for safety. The problem is that even
> when powered from a 5 to 8 volt supply, with the pot set at close to max,
> the second transistor fries. The first transistor has fried a couple of
> times as well. What I need is advice on what to replace the suggested
> transistors with, as long as they pulse the same way. I have heard of "power
> transistors", and I believe that voltage regulators function in a similar
> manner, but I have no clue as to what to use, and how.

> This design is very important to me. I am disabled with chronic pain and I
> find this circuit helps more than medication. The reason I need a lot of
> current is that some of my muscles don’t respond to a "normal, high" jolt.
> Also, most TENS units only seem to have a superficial effect on me. I may be
> wrong, but I believe this design goes from a positive current to a negative
> current. Commercial units feel as though they pulse from a  high to 0. At
> least that’s what it feels like, they just don’t have the "depth" of pulse,
> even if they are "stronger" than this design. They likely do not use
> transformers as they are so slim and light.

> I would really appreciate the help as I am eager to experiment with the
> timer chip in regards to creating as many pulse modifications as possible.
> That is well within my capability (lots of info on the net), but I’ve got to
> stop the transistors from burning first.

> Parts:
> Q1,Q2___BC327  45V 800mA PNP Transistors – not available
>                  - replaced w\ NTE159 & 2N3906 & A684
> T1______220V  Prim, 12V Sec 1.2VA Mains transformer (connect reversed)
> IC1_____7555  or TS555CN CMos Timer IC
> D2______1N4007  1000V 1A Diode
> C1______100nF  63V Polyester Capacitor
> C2______100µF  25V Electrolytic Capacitor
> R1______180K  1/4W Resistor
> R2______1.8K  1/4W Resistor
> R3______2.2K  1/4W Resistor
> R4______100R  1/4W Resistor
> D1______LED  5mm.
> P1______4.7K  Linear Potentiometer

  Please forgive me; I do not know what a "TENS" is, and there was no
attachment.
  On the power xfmr, i hope you do *NOT* mean you apply 220V from the
wall outlet to the 12V winding!!
  My guess is that a DC supply of some sort is used to charge a
capacitor via a resistor, and then that capacitor is discharged thru the
12V secondary via a power transistor driven by the 555.
  An alternate scheme is to directly "pulse" or switch the xfmr (goes
between supply and switching transistor).
  As long as the pulse width (transistor on time) is not too wide in the
second case and the capacitor is not too large in the first case, the
xfmr will not saturate and you will not get excessive current.
  With that provisio, the second case gives an output voltage that is
linearly related to the pulse width and the supply voltage; the first
case gives an output voltage whose power is related to C*V*V.
  So i do not see what is your problem.
  I have built both schemes.
  The first scheme i did was so nasty that it can fire a sparkplug
reliably even if the dirtiest possible and thru 10 feet of RG-8 (would
do serious damage to you).
  The second scheme i did was to get 2-3KV at low power (250mW) but
there is no reason to get more power and/or voltage.

hi guys,
please could someone explain the difference between the three types of
this meter. i know the 8921 has 4mm jack inputs and the other two BMC
inputs but other than that???
your help is much appreciated as i am looking to buy one.
thanks

Hello,
I have a used Iotech data acquisition system that I am interested in
selling. Components are:

Daqbook/200 Main Unit, 100 KHZ Operation, 16-bit.  See
http://www.iotech.com/catalog/daq/catdk1.html for full specs and details
(2) 3 slot expansion chassis
DBK2 4-channel voltage output card
DBK9 8-channel RTD input card
DBK25 8-channel relay card
(2) DBK11A Screw Terminal Cards
All cabling and interconnections
DaqVIEW Spreadsheet-based acquisition software
LabVIEW drivers
All Documentation

System was purchased in 1997 and used 2 hours.  Like new condition.  The
Daqbook is still a supported platform from Iotech (http://www.iotech.com) so
all up-to-date software and drivers are available on their website.  Current
list price for all these items is over $4000.  Make a reasonable offer.

Dan Hall
d…@hallassociates.net
http://www.calibrationsales.com

I’m running an air cleaner in the back seat of the car, which draws about
80 watts, the manufacturer says, on high speed. I originally thought it
might need a sine inverter so I bought one on Ebay that claimed to be sine
but the manufacturer apparently had a bad production run or something and
it wasn’t putting out a full 120 VAC ( around 90 VAC RMS when I measured it
) so the cleaner wouldn’t start for a few minutes in cold weather.

They sent me a larger one ( 400 Watts ) but that one didn’t do much better
and they finally refunded my money.

So my question is this. I need to find another inverter for this. But does
it have to be a sine inverter to run a motor like this, or not?

The air cleaner I’m talking about is the Austin Junior at
http://www.austinair.com/

And how much capacity does an inverter like this really need for running an
air cleaner like that?

And if anyone has any suggestions for an inexpensive inverter ( sine? )
that would run this, please let me know here. My cigarette lighter outlet
in the car is switched and the inverter I did get before had an
undervoltage feature that made it very annoying because when the car
started up again and the voltage came back, it would just beep and not
restart and I’d have to reach down and switch it off and back on again
before it would work. I’d like to avoid that problem again in the next one
I buy. So it needs to plug into the lighter socket and restart on its own
when the car does.

–
– Melissa
http://www.MelissaBrookstoneAmerica.com/

Heathkit Instrument Collection – Five Pieces – Ebay

This auction is for four Heathkit test instruments plus the original
Heathkit manuals, plus a regulated power supply.  The instruments are
designed to be stackable, and they are shown stacked on top of the power
supply.  A power cable runs from each instrument to the power supply.
The instruments include:
  Model IT-5283 Signal Tracer
  Model IG-5280 RF Oscillator
  Model IG-5282 Audio Generator
  Model IB-5281 RLC Bridge

Pictures: Those interested, please send a request to my email address and I
will send a set of pictures showing each instrument and power supply.
w…@mindspring.com

Power Supply:  One of the problems with these Heathkit Test Instruments is
that they require +/- nine volt batteries.  The power supply included (shown
at the bottom in the stack) provides the +/- nine volts (no batteries
required).  Both the positive and negative sides are adjustable.  This power
supply has a nice transformer to provide isolation.  One knob adjusts the
positive, one adjusts the negative, and the small switch switches the meter
from the positive to the negative.

Cosmetically these are in very good to excellent condition.  Functionally,
they all worked at one time.  I used the RLC bridge recently to check some
capacitors, and it worked perfectly and was in good calibration.  I used the
RF Oscillator a few months ago, and it worked perfectly and was in good
calibration.  I haven’t used the Signal Tracer since it was built.  I used
the Audio Generator last year, and there was a problem with it, although I
don’t remember the details.  The power supply works perfectly.  I am selling
the items as-is, with the Heathkit Manuals included.

For auction on Ebay, click on:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1338703185&ssPageN…
E:B:LC:US:1

I will be glad to provide additional information.  Contact me at
w…@mindspring.com