If you are using Isopropyl alcohol as a 'thinner', be careful where
you use it. We had significant problems with softening of the capstan
drive pinch wheels in a well known make of broadcast video recorders
when they had been accidentally splashed with Iso'.
Gordon ZL1KL
Thanks Paul and Kris for your suggestions.
While 29 MHZ could well be better, we do not have that option. These
are non-amateur operations although the base station and repeater are
owned and operated by local amateurs. We do have a few amateurs
scattered amongst the search teams too - but
HI to all,
I guess that I do not have much to contribute on this thread
but to me it is very interesting reading. Gary has my sympathy, his
problem is duplicated here. Much of my repeater work relates to a low
power portable repeater on 141 MHz. We live near a medium sized mountain
Here down under, we are presently working through a District
Planning exercise where the City Fathers think that the words
Antenna and Aerial mean two quite different things. Should we
lose, we may well be back to smoke signals.
Gordon ZL1KL
On 28/08/10 11:55, x.tait.tech wrote:
>
>
> How much did this unit cost roughly, and do you have the URl of the
> company or were the parts available here
>
> Marcus
>
Sorry Marcus I mis-spelt their name, it is Oatley.
www.oatleyelectronics.com.au. Cost about $18AU
bare and $24AU with a waterpro
I use a Solar Panel controller built from a kit by Otley Electronics
in Australia. Has been going two years without problems. Battery
voltage is sensed continually and cut-off point adjustable. Battery
then cycles on/off, switching by a MosFet and hysteresis can be
altered.
Gordon ZL1KL
Tauranga N
Another quirk.
Sixty plus years ago in England, power factor was not
the main concern. Many of the domestic radio receivers
were transformerless and used half-wave rectification to
obtain D.C. for the tubes. A consequence was a fair dose
of D.C. flowing in the street power mains.
Gordon ZL
The gentleman's address is Brazil, you need Portugese, not Spanish.
Gordon ZL1KL
niteviser,
Thanks a lot, circuit downloaded without trouble.
Gordon ZL1KL
On 13/08/10 19:16, Gareth Bennett wrote:
Sounds like you have a pair of T355 T356 radios,
You may well want to open up the TX PA unit (Behind the alloy
shield) and change the electrolytics in there as well as this area
is a well known area of trouble and can cause no end of spuries.
Just ens
Thanks Gareth. I was going to replace the electro's, and a
current rating of 6A is more reasonable with only a single
pass transistor.
As you have probably guessed, this equipment is T300 series
but my surprise is that it has hardly been used. Set up as a
base station for CD and has lived its lif
I would be grateful for any info' about a Tait T296/01 PSU.
It is in a rack of Tait repeater gear that I am re-conditioning
for a local SAR group. I am guessing at 13.8V 10A in terms
of the transmitter's power needs, but the regulator looks to
be a bit light for 10 Amps.
OK, I may have to t
Maybe a little Black Powder might be needed?
Gordon ZL1KL
Tauranga N.Z.
Greetings to all,
I apologise for enquiring about a medium
frequency
component on a Group that works on VHF and above, but I would be
grateful if anyone can point me towards a supplier of STK-077 power
transistors or their equivalents.
I have inherited an Icom I
Hi Jim,
I have following this conversation thread over the past few days
and note your comments about overcharging. I have been through this
situation and settled on a solar panel charge controller. The unit I am
using uses a MOSFET to do the switching and a hefty Schotty diode
to isol
Was looking for something else in an old ARRL Handies & found the
comment that "the 567 requires high quality capacitors to maintain
stability".
On another subject, any advice on purchasing duplexers for 2 metres?
Our local supplier has closed down and such items are like hens teeth
her
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