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---MIKE--- May 3rd 08 04:20 PM

What value pot?
 
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 May 3rd 08 10:12 PM

What value pot?
 


"---MIKE---" wrote in message
...
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 May 4th 08 12:54 AM

What value pot?
 
On Sat, 3 May 2008 11:20:59 -0400, (---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


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