What value pot?

[---MIKE---]

My new digital FM tuner puts out too strong a signal compared to my
other inputs (TV and CD). I want to install a dual pot between the
tuner and preamp to reduce the volume. What is the best value pot to
use for this. I have ordered 50K, 100K, 250K and 500K from Mouser (the
pots are cheap - the shipping is not).


---MIKE---

In the White Mountains of New Hampshire
(44° 15' N - Elevation 1580')

 

[Charles]

"---MIKE---" <twinmountain@webtv.net> wrote in message
news:22642-481C82DB-443@storefull-3256.bay.webtv.net...
My new digital FM tuner puts out too strong a signal compared to my
other inputs (TV and CD). I want to install a dual pot between the
tuner and preamp to reduce the volume. What is the best value pot to
use for this. I have ordered 50K, 100K, 250K and 500K from Mouser (the
pots are cheap - the shipping is not).

Assuming the tuner output impedance is low and the preamp input impedance is
high, try the 50K first. If the preamp input impedance is also low, a lower
value of pot would be better.

 

[John Fields]

On Sat, 3 May 2008 11:20:59 -0400, twinmountain@webtv.net (---MIKE---)
wrote:

My new digital FM tuner puts out too strong a signal compared to my
other inputs (TV and CD). I want to install a dual pot between the
tuner and preamp to reduce the volume. What is the best value pot to
use for this.

---
Depends on the input impedance of your preamp and the output impedance
of your tuner.
---

I have ordered 50K, 100K, 250K and 500K from Mouser (the
pots are cheap - the shipping is not).

---
Try the 50k first.

If it sounds OK, you're there.

JF