I've got a TMC Directional Coupler Unit Model CU 2/50 and my "cheatsheet"
for silver button micas is not to be found. I wonder if someone has one and
can tell me the capacitance of one that has the following six colors: black,
brown, red, green, gold, grey. If anyone has a schematic, please let me
know.
tnx
hank wd5jfr

Good and bad news..
I found my capacitance meter and measured the button and it's about 1500 pf.
The bad news is in my posting I transposed red and green and the correct
color sequence is: black, brown, green, red, gold, gray..
Black desigantes military, and 1500 pf by the next 3 but I still need to
know what the gold and gray designate..
Tolerance, temp coeff, and voltage but which 2 are designated and how?. Any
tips appreciated. A spec on this cplr would be appreciated.
tnx
hank wd5jfr

"Henry Kolesnik" wrote in message
...
I've got a TMC Directional Coupler Unit Model CU 2/50 and my "cheatsheet"
for silver button micas is not to be found. I wonder if someone has one
and
can tell me the capacitance of one that has the following six colors:
black,
brown, red, green, gold, grey. If anyone has a schematic, please let me
know.
tnx
hank wd5jfr

On Thu, 6 Nov 2003 13:50:18 -0600, "Henry Kolesnik"
wrote:

Good and bad news..
I found my capacitance meter and measured the button and it's about 1500 pf.
The bad news is in my posting I transposed red and green and the correct
color sequence is: black, brown, green, red, gold, gray..
Black desigantes military, and 1500 pf by the next 3 but I still need to
know what the gold and gray designate..
Tolerance, temp coeff, and voltage but which 2 are designated and how?. Any
tips appreciated. A spec on this cplr would be appreciated.

Gold = 5%, Silver = 10% and no color = 20% "As I recall"

Can't help on the gray... The ARRL handbooks used to contain all the
color codes for resistors and capacitors. I didn't find any in the
latest version. course I may have just missed them.

Roger Halstead (K8RI EN73 & ARRL Life Member)
www.rogerhalstead.com
N833R World's oldest Debonair? (S# CD-2)
tnx
hank wd5jfr

"Henry Kolesnik" wrote in message
...
I've got a TMC Directional Coupler Unit Model CU 2/50 and my "cheatsheet"
for silver button micas is not to be found. I wonder if someone has one
and
can tell me the capacitance of one that has the following six colors:
black,
brown, red, green, gold, grey. If anyone has a schematic, please let me
know.
tnx
hank wd5jfr

The gold is the tolerance with gold being 5%, silver being 10% and nothing
being 20%. The next dot is the voltage in hundreds of volts. That is as
far as I know, haven't used this for 30 years.
Bob K5DXN

"Henry Kolesnik" wrote in message
...
Good and bad news..
I found my capacitance meter and measured the button and it's about 1500
pf.
The bad news is in my posting I transposed red and green and the correct
color sequence is: black, brown, green, red, gold, gray..
Black desigantes military, and 1500 pf by the next 3 but I still need to
know what the gold and gray designate..
Tolerance, temp coeff, and voltage but which 2 are designated and how?.
Any
tips appreciated. A spec on this cplr would be appreciated.
tnx
hank wd5jfr

"Henry Kolesnik" wrote in message
...
I've got a TMC Directional Coupler Unit Model CU 2/50 and my
"cheatsheet"
for silver button micas is not to be found. I wonder if someone has one
and
can tell me the capacitance of one that has the following six colors:
black,
brown, red, green, gold, grey. If anyone has a schematic, please let me
know.
tnx
hank wd5jfr

On Thu, 6 Nov 2003 22:54:39 -0700, "rricchard"
wrote:

The gold is the tolerance with gold being 5%, silver being 10% and nothing
being 20%. The next dot is the voltage in hundreds of volts. That is as
far as I know, haven't used this for 30 years.
Bob K5DXN

I finally found it under "component markings" Chapter 24, page 2
(24.2) in the 2003 ARRL handbook. Me? I had been looking under color
code.

Gold and Silver can also be used in the value bands as 0.1 and 0.01
multipliers, respectively. On resistors the first two bands are
significant figures, the third is the decimal multiplier, the 4th is
tolerance and the 5th (if there is one) indicates relative percent
change per 1000 hours of operation.

24.4 shows the placement and meanings of each band, dot, or bar for
capacitors.

Roger Halstead (K8RI EN73 & ARRL Life Member)
www.rogerhalstead.com
N833R World's oldest Debonair? (S# CD-2)


"Henry Kolesnik" wrote in message
...
Good and bad news..
I found my capacitance meter and measured the button and it's about 1500
pf.
The bad news is in my posting I transposed red and green and the correct
color sequence is: black, brown, green, red, gold, gray..
Black desigantes military, and 1500 pf by the next 3 but I still need to
know what the gold and gray designate..
Tolerance, temp coeff, and voltage but which 2 are designated and how?.
Any
tips appreciated. A spec on this cplr would be appreciated.
tnx
hank wd5jfr

"Henry Kolesnik" wrote in message
...
I've got a TMC Directional Coupler Unit Model CU 2/50 and my
"cheatsheet"
for silver button micas is not to be found. I wonder if someone has one
and
can tell me the capacitance of one that has the following six colors:
black,
brown, red, green, gold, grey. If anyone has a schematic, please let me
know.
tnx
hank wd5jfr

In article , "rricchard"
writes:

The next dot is the voltage in hundreds of volts. That is as
far as I know, haven't used this for 30 years.

Wow, gray = 800 V! Not totally unreasonable, but pretty good for a small cap.
--Mike K.

Oscar loves trash, but hates Spam! Delete him to reply to me.