I am getting ready to revamp my Ranger I and I would really appreciate a
copy of the information on the Ranger. If there is any cost involved for
printing or postage please let me know. Thanks
Healthfully yours,
Rev. Don Sanders W4BWS
PO Box 101
You could buy the 25K, use your old clamp to tap at
20K, and the new tap for whatever you need. That would
cut the rating to 40 watts however..
Alternatively parallel the 25K 50 watt with a 100K
fixed 10 watt, and you got 20K with an adjustable tap!
You might be able to just substitu
This link explains the drive pot replacement for the DX 100 you are speaking
about Jim.
http://www.amwindow.org/tech/htm/drivepot.htm
If it is a drive pot replacement with low current, the transistor should not
need heat sinking; and the article explains how to mount it on a solder
terminal s
Byron,
Seems that 20K is tough to find these days! At the link below, they got
a 25K 5 watt pot:
I bet that would do.
http://dkc3.digikey.com/PDF/T051/1066.pdf
Regards,
Jim
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Byron Lichtenwalner
Sent:
I have received several reply tat suggest using a regular 1/4 or 1/2 watt
pot and a "current amplifier" horiziontal output traqnsistor (NPN). That
triggered my memory, and I found such a circuit by W3BYM in Electric Radio,
Dec. 2000, that included some other recommened changes for the Ranger.
Jim candela wrote:
Byron,
I recall someone in your situation using a lower wattage pot, and a HV
NPN Horizontal output transistor as an emitter follower. A resistor from
emitter to ground is required, maybe 47K 2 watts. You might think about that
option. This transistor will need to be heat s
Byron,
I recall someone in your situation using a lower wattage pot, and a HV
NPN Horizontal output transistor as an emitter follower. A resistor from
emitter to ground is required, maybe 47K 2 watts. You might think about that
option. This transistor will need to be heat sinked, and the case
I have been following the discussion on Jim's problem, and have a similar
"quest".
I have been trying to find a 4 watt, 20 k pot. to use in a Ranger power
control circuit as described by W3AM. Have had no luck in finding on. Any
ideas?
Byron, W3WKR
On the HT-37, you still have to manually turn the function switch into the
MOX position for CW, then back into
STBY for receive.There is a PTT modification for the HT-37, but I'm not
sure that applies to CW
as George would like.
George, this was normal for that era, and as such, it didn't need
Room is the problem Jim. Wish I had just a bit more to do that.
73 Jim
W5JO
Jim,
You could buy the 25K, use your old clamp to tap at
20K, and the new tap for whatever you need. That would
cut the rating to 40 watts however..
Alternatively parallel the 25K 50 watt with a 100K
fixed
So have I but in this case, surface rust prevents a repair because the other
sliders won't make contact. The wire under the contacts is rusted to the
point the sliders do not work. Thanks for the suggestion Gary.
73 Jim
W5JO
Jim,
I have repaired those resistors by putting a clamp over
Jim,
You could buy the 25K, use your old clamp to tap at
20K, and the new tap for whatever you need. That would
cut the rating to 40 watts however..
Alternatively parallel the 25K 50 watt with a 100K
fixed 10 watt, and you got 20K with an adjustable tap!
Jim
WD5JKO
--- Gary Schafer <[
Jim,
I have repaired those resistors by putting a clamp over the burned out
spot. Usually works fine.
73
Gary K4FMX
Jim Wilhite wrote:
No minimum order required and no handling charge either. In the past,
if they did not have the item in stock and had to ship some part later,
they didn't
No minimum order required and no handling charge either. In the past, if
they did not have the item in stock and had to ship some part later, they
didn't charge shipping on the second package unless the high price of fuel
has changed things. Good people to do business with.
The problem with
George KB2Z wrote:
Morning all,
5100b , Is it normal? question.
When in the HV setting the the tx relay closes and the rx mutes.
In phone with PTT its not an issue but in CW the HV switch acts more
like a send receive switch.
The rx is muted as long as the HV is on. Key up, key down, makes no
Morning all,
5100b , Is it normal? question.
When in the HV setting the the tx relay closes and the rx mutes.
In phone with PTT its not an issue but in CW the HV switch acts more like a
send receive switch.
The rx is muted as long as the HV is on. Key up, key down, makes no difference.
Is it nor
Mahlon Haunschild wrote:
> Hello, list. Have acquired a B&K 1602 HV power supply. Basic
problem is no C- voltage (that's the one intended for use as a bias
supply, I believe). Internal inspection of the unit's pc board reveals
that R33 is burned beyond recognition and Q3 is GONE (well, the
Ron::
While I look for the knob, I believe I also have the meter switch.
Regards,
Gary...WZ1M
- Original Message -
From: <[EMAIL PROTECTED]>
To:
Sent: Saturday, March 19, 2005 10:14 PM
Subject: [AMRadio] Viking 2 Switch
> I am putting another Viking2 on the air and I need the meter
Try Mouser at www.mouser.com
or at http://www.mouser.com/catalog/621/437.pdf
They have 10K, and 25K at 25 watts or 50 watts adjuatable. Maybe get a 10K
fixed at 25 watt, and series with another 10K at 25 watt adjustable. If you
can tolerate 25K this is a one piece solution for $11.61 + .29
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