39-116 Mystery Control receive antenna trimmer
 

IIRC, the mica cap across it is 130pf. Total capacitance at it's current and
forever setting is ~210pf.



--
Say no to institutionalized interference.
Just say NO to HD/IBOC!

39-116 Mystery Control receive antenna trimmer
 

On Tue, 11 Mar 2008 12:19:45 +0900, "Brenda Ann"
wrote:

IIRC, the mica cap across it is 130pf. Total capacitance at it's current and
forever setting is ~210pf.

Nice cap... g Next time, put a ruler on the table near the item you
are taking a picture of so viewers can get an idea on the scale/size
of the part!

They sure don't make them like that today, do the? Ceramic, gold
plated, and probably huge! g

39-116 Mystery Control receive antenna trimmer
 

PeterD wrote:
On Tue, 11 Mar 2008 12:19:45 +0900, "Brenda Ann"
wrote:

IIRC, the mica cap across it is 130pf. Total capacitance at it's current and
forever setting is ~210pf.

Nice cap... g Next time, put a ruler on the table near the item you
are taking a picture of so viewers can get an idea on the scale/size
of the part!

They sure don't make them like that today, do the? Ceramic, gold
plated, and probably huge! g

Judging by the size of the fixed cap--and past experience--I'd bet that
it's less than 1.5".

jak

39-116 Mystery Control receive antenna trimmer
 

"jakdedert" wrote in message
...
PeterD wrote:
On Tue, 11 Mar 2008 12:19:45 +0900, "Brenda Ann"
wrote:

IIRC, the mica cap across it is 130pf. Total capacitance at it's current
and
forever setting is ~210pf.

Nice cap... g Next time, put a ruler on the table near the item you
are taking a picture of so viewers can get an idea on the scale/size
of the part!

They sure don't make them like that today, do the? Ceramic, gold
plated, and probably huge! g

Judging by the size of the fixed cap--and past experience--I'd bet that
it's less than 1.5".

jak

The plates are about 1.5~1.6mm separation, according to my jeweler's loupe.
Here's a pic against a tape measure for you.

39-116 Mystery Control receive antenna trimmer
 

Brenda Ann wrote:
"jakdedert" wrote in message
...
PeterD wrote:
On Tue, 11 Mar 2008 12:19:45 +0900, "Brenda Ann"
wrote:

IIRC, the mica cap across it is 130pf. Total capacitance at it's current
and
forever setting is ~210pf.
Nice cap... g Next time, put a ruler on the table near the item you
are taking a picture of so viewers can get an idea on the scale/size
of the part!

They sure don't make them like that today, do the? Ceramic, gold
plated, and probably huge! g
Judging by the size of the fixed cap--and past experience--I'd bet that
it's less than 1.5".

jak

The plates are about 1.5~1.6mm separation, according to my jeweler's loupe.
Here's a pic against a tape measure for you.



Oops...I was off by a quarter inch. Still not 'huge'....

jak

39-116 Mystery Control receive antenna trimmer
 

On Tue, 11 Mar 2008 21:28:16 -0500, jakdedert
wrote:

Brenda Ann wrote:
"jakdedert" wrote in message
...
PeterD wrote:
On Tue, 11 Mar 2008 12:19:45 +0900, "Brenda Ann"
wrote:

IIRC, the mica cap across it is 130pf. Total capacitance at it's current
and
forever setting is ~210pf.
Nice cap... g Next time, put a ruler on the table near the item you
are taking a picture of so viewers can get an idea on the scale/size
of the part!

They sure don't make them like that today, do the? Ceramic, gold
plated, and probably huge! g
Judging by the size of the fixed cap--and past experience--I'd bet that
it's less than 1.5".

jak

The plates are about 1.5~1.6mm separation, according to my jeweler's loupe.
Here's a pic against a tape measure for you.



Oops...I was off by a quarter inch. Still not 'huge'....

jak

Sadly the second image never made it to my server... :-{ however, that
was a good guess on size!

39-116 Mystery Control receive antenna trimmer
 

This looks exactaly like a Hammarlund variable cap that I replaced in an
HQ-200 last year. You can still find these caps on eBay, if you have some
patience. Simply search for "Hammarlund" over a period of a couple of
weeks ... I'll bet you come up with one.

Good luck.