Ron::
While I look for the knob, I believe I also have the meter switch.
Regards,
Gary...WZ1M
- Original Message -
From: [EMAIL PROTECTED]
To: amradio@mailman.qth.net
Sent: Saturday, March 19, 2005 10:14 PM
Subject: [AMRadio] Viking 2 Switch
I am putting another Viking2 on the air
Mahlon Haunschild wrote:
Hello, list. Have acquired a BK 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
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
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
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
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
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
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
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
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
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
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
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.
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:
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
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
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
17 matches
Mail list logo
