Thanks everyone, that was the info I needed. I had looked through the
book several times, but
didn't expect to find a section on fuse replacement in with 'modules'.
Mouser has them in stock for $0.67 each Littlelfuse part number is
0453005.MR
Thanks again
Chuck
wb6fly wrote:
I took a cl
a while back someone was looking for 6 ft cabinets outdoor
a friend of mine mentioned to me today that he has several outdoor cabinets
from paging stations.
in the interest of passing valuable information along to them what wants it - -
-
CONTACT--
JIM PRACKER COMMUNICATIONS LEASING
N
Hello Group
A little off subject but I am in need of sourcing high capacity capacitors
( 70 to 100 K uF - 35 v stuff )
New or Surplus are OK
Any suggetions ? looking for good prices ( that is the limiting factor ! )
Ed
Com/Rad Inc
Recent Activity
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>From retired parts, I am attempting to assemble a VHF Micor Unified
chassis into a repeater. I already succesfully assembled the UHF model.
I can not under any circumstances get any local speaker audio from the
VHF chassis.
The receiver is working and producing discriminator noise, measured at
Find the two speaker pins on the audio output module and with the module
removed, check for continuity across the speaker leads. If you check from the
output module end, you will hear the ohm meter put enough current through the
speaker to hear a scratch in the speaker each time you connect the
Hey guys,
Alright, need some advice on this one.
I have a uhf, and a little big from what we can tell has been in the
receiver for a long time.
The output of my machine is 449.225 with an input of 444.225.
We're running a wacom wp678 duplexer, which is tuned up just fine.
One problem, right next t
The desense is probably caused by broadband noise at the paging transmitter's
third harmonic. A notch cavity on the output of the paging transmitter might be
the lowest-loss, most cost-effective remedy.
Time to find out if you're a diplomat!
73,
Paul, AE4KR
- Original Message -
Fr
Service manual and o-scope for signal tracing
Milt
N3LTQ
- Original Message -
From: "Terry"
To:
Sent: Monday, December 29, 2008 4:22 PM
Subject: [Repeater-Builder] VHF Unified Chassis Micor
> From retired parts, I am attempting to assemble a VHF Micor Unified
> chassis into a repeat
Well I know a lot of us bought battery operated Equipment including
Toys for kids and Grandkids, I had a Friend Tell Me about a great
Battery sell at Radio Shack until 3 Jan 09
40 AA Or 40 AAA $9.99 this is their better batteries Enercell Alkaline
PS You will never know how important this is u
Doug Dickinson wrote:
>The Orange Box and the Apcor (both Motorola)
>
Hi Doug,
You forgot about the other Orange Box made by Biocom (if I remember
correctly). It had GE portables as it's guts
Don't you wish you were back in Florida now, 80F and bright sun.
Happy holidays to you and all the R-
Laryn,
If the power supply were a switching design, current foldback would occur.
But, in the typical Astron RS-series linear supply, the firing of the SCR
puts a bolted short on the output. As soon as the large capacitors on the
output start to lose their charge, the regulator tries to maintain
I should point out that Astron has made several significant changes to the
RS-series regulator boards over the past 20 years, and that may explain why
some Astron power supplies always blow the input fuse when shorted, while
others never do. Every one of my own Astron linear power supplies is more
I recently acquired a Kenwood HM-250 Audio Distortion Analyzer, and I have
been experimenting with various CTCSS tone encoders to find which produce
the purest tones. Since I am putting together a 6m repeater using Mitrek
radios, I wanted to compare the older HLN4020B reed board to the newer
HLN41
I took a close look at a spare Motorola MTR2000 fuse, part number
6583049X16, and can provide some additional data: The fuse is rectangular,
with a square cross-section, and measures about 6.0mm by 2.6mm. It has a
ceramic body, with silver-plated end caps. The legend "IE5A" is printed on
one fac
I recently acquired a Kenwood HM-250 Audio Distortion Analyzer, and I
have been experimenting with various CTCSS tone encoders to find
which produce the purest tones. Since I am putting together a 6m
repeater using Mitrek radios, I wanted to compare the older HLN4020B
reed board to the newer H
Paul Plack wrote:
Kevin,
Any idea how much current consumption would be saved using the
non-microprocessor approach?
I would think at least some. Power consumption is always a design
consideration of Repeater Builder.
Any other advantages?
Yes, I hope to have a squelch circuit that work
Fellow repeater builders,
I am a relative novice at repeater linking and need some trouble
shooting/system design advice.
I have a 440 repeater with 3 two meter remote base radios tied
together using the CAT 300 DXL controller with the RLS board. The
remote base radios are tuned to local repea
Does anybody on the list here have some good technical knowledge on
the above repeater?
I'm trying to get the CTCSS tone board working in one and can't seem
to.
I don't think its broke, but need someone to point me in the right
direction on some troubleshooting.
Thanks.
73,
Brian
OT But for cheap people like Me I want the Free Coupons I don"t need
Cable , Dish Etc But I sure want to keep My Old Sony 57 In analoq TV
Digital TV Converter Coupons in Tight Supply ,I Have No idea if this
is true , I have not ordered Mine thinking the longer I wait the
Better selection and p
With the reedless board chip being nothing more then a simple resister network,
I wonder what your purity results might be if you built-up a 127.3 network
using 1, 5,and 10% 1/8w resisters for comparison as well.
--
Doug
N3DAB/WPRX486/WPJL709
Eric Lemmon wrote:
=
I recent
Doug,
Since the resistor array in the TRN4224A serves only to "program" the
digital synthesizer in the encoder/decoder chip, changing resistors should
not make any difference in the tone purity. However, I once built up an
array for testing using discrete resistors, and- if I can find it- I'll ru
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