2. amps-preamps
  3. 1229094117

Preamp gain question

I am unable to turn up my CJ PV 10 pre amp up past 9 o"clock. Could the gain be lowered by using different tubes? I have considered using rca attenuators which are advertised to take it down by 10db but I am not sure if this is the way to go.
Also, I am using a Goldring 1042 mm cart (6.5mV output) Would going to a lo mc cart allow me to utilize more of the preamp gain control?

I guess I am trying to find out where my mismatch is occuring.

Everything sounds great but I have no control over low volumes.
zenblaster

Showing 1 response by magfan

magfan
1,583 posts
 
Find out what the 'taper' of the pot IS.
Not all provide the same attenuation for the same amount of rotation.
The 2 types are 'linear' and 'logrithmic'(sp). Both start and end at the same place....say 10Kaohms to effectively 0, but have different ways of getting there.
You may get more resolution by going from a linear taper to log taper.
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