Thank you Richard,
The LM 741 brought the MITREK back to life again, the power control circuit
uses the op amp as a simple voltage comparator. What was confusing me was the
radio has pin 8 of the op amp grounded
and the datasheet for LM 741 show pin 8 not connected internally.
Gregory AC6VJ
Hi Gang,
I am looking for a Motorola M2170 8 pin DIP IC or a cross reference for it. It
is used in a Mitrek transmit power control circuit.
Gregory AC6VJ
The cabinets come with the card cages, but alas, no cards.
I wish they did come complete so I would have one to play with myself.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, "Maire-Radios"
wrote:
>
> have any traffic controllers?
>
>
> - Origina
Hi Larry,
I have a stash of traffic signal boxes here in Northern California.
I donate them free of charge to any good Ham cause.
AC6VJ {ac...@cds1.net}
--- In Repeater-Builder@yahoogroups.com, "Larry Watkinson"
wrote:
>
> I am looking for a outdoor radio cabinet, somethin
Paul,
I have some aluminum traffic signal boxes that are 5 1/2 feet tall 20 inches
wide and 3 1/2 feet deep. Here in Northern California that are just perfect
for outdoor repeater cabinets.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, "Paul Plack" wrote:
>
> L
Gary,
Try Viking Technologies LTD. at www.cardwellcondenser.com
they have a very large selection of Johnson, series 167 capacitors and will be
able to give you the exact specifications on the broken one that you have.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, Gary Hoff wrote
was not cheap, but when you take
into account that I have not had to go up to the top of the amount in four
years to work on it, it's a great deal.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, "K5IN" wrote:
>
> Kevin,
>
>
> Any suggestions for a
Hi Gang,
I have two 2M repeaters made out of Micor Mobil's running 30W each. They both
use Sinclair Q202G0-N Hybrid Ring [the model number you're looking for] with
absolutely no desense. They are the bomb, but thay are a little bit of work to
tune, the only problem with using the Q202G is tha
and the solder joint at these rivets go bad. I inject a signal into
the receiver's front-end, and then use an oscilloscope and probe
along the traces on the interconnect board until I find the offending
solder joint.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, "Mike
ing a Clegg FM-76 radio, is a pair of TX/RX crystals cost $30-
$40 for each frequency pair, and the radio did not originally come
with a TX PL board. So it does not take very long to have more
invested in crystals and a PL board than a new synthesized radio
costs.
Gregory AC6VJ
--- In Rep
the exciter board leading to pin five P902, see note 409
on the Exciter/1ST Bandpass Filter schematic pullout in the Micor
Base and Repeater Station Manual 68P81025E60.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, "n9wys" <[EMAIL PROTECTED]> wrote:
>
> OK gang,
when you
bend the all-thread. All-thread has many good uses, but none of them
are on a tower.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, Ron Wright <[EMAIL PROTECTED]>
wrote:
>
> Hi all,
>
> I am about to put up a Telewave Super Station Master up over 1000
ft
clean. The only negative comment I can make about the
amplifier is they lost it in their own warehouse for over three
months after I had ordered.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, Robin Midgett <[EMAIL PROTECTED]>
wrote:
>
> I have a friend who's looking fo
xtender is cutting back the I.F. gain.
A word of warning: the heatsink on the Mitrek is woefully undersized
for 100% duty cycle and needs lots of forced air flowing over it.
There is a lot of good information on Repeater Builders about cooling
a Mitrek.
Gregory AC6VJ
--- In Repeat
to a full-size 6M duplexer that looks like it's made out of
chunks of a telephone pole. It uses many UHF connectors in its
construction, and I have found that if they are not extremely tight
it will make the duplexer microphonic.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroup
ng Radio Shack mobile radios that on a
good day can barely make 25W, and there antenna is not as good as
your repeater antenna. After all, you do not want to end up with an
alligator, but with a balance system that matches your users ability.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.co
. The power control Board, folds back the gain on the
predriver of the power amplifier chain.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, "Don" <[EMAIL PROTECTED]> wrote:
>
> On the Motorola Micor Unified Chassis type repeater can anyone please
> tell me if th
would do a hard reset, and it would start working
again; but it would lose all its programming. I finally gave up and
purchased a new ALINCO a year ago and have been pleased with the
radio, it just keeps percolating along.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, "skipp025&quo
Whoops sorry fat fingers at work, I meant KXN1028 channel elements.
--- In Repeater-Builder@yahoogroups.com, "ac6vj" <[EMAIL PROTECTED]> wrote:
>
> Hi, I'm looking for two KXN1082 channel elements and two low band hi
hi
> split receiver boards TLB6854 or TLB6
Hi, I'm looking for two KXN1082 channel elements and two low band hi hi
split receiver boards TLB6854 or TLB6864. Please let me know if you
have any you would like to sell and how much you want for them.
Gregory AC6VJ
[EMAIL PROTECTED]
lookout shack, and mounted the link Yagi directly to the handrail.
Gregory AC6VJ
--- In Repeater-Builder@yahoogroups.com, "Alexander N Tubonjic"
<[EMAIL PROTECTED]> wrote:
> Hello All,
> The local department of Forestry has an observation tower that is
> over 200
Could someone please tell me what this MOTORLA consolette is
E51JJB1490CM
Thank you Gregory AC6VJ
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
Does anyone have a MICOR Low Band Low Split or Medium Split thay
would like to sell.
Gregory Gordon AC6VJ ([EMAIL PROTECTED])
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