Farhan,
As the mad radio modder said put in a resistor and provide the through
holes for a trimmer if the
user wants to be able to fine tune it. 33-39 ohms is safe.
Raj
At 10-07-18, you wrote:
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raj,
is there any other way of increasing the quiescent current by just
changing the value of components? that might be an easier mod. something
that i can even ask the production to do.
- f
On Tue, Jul 10, 2018 at 11:31 AM, Raj vu2zap
<
rajendrakumargg@...> wrote:
- The volume increases a lot if you do the quiescent current adjust mod
that I have
- described before.
- Cut track between D15 and D16.. solder a multiturn vertical preset
between the
- two diodes and zero the preset resistance and slowly increase the
preset till
- the volume of background noise stops increasing. Check if final audio
transistors
- are hot, if hot reduce the preset..
- Raj
- At 10-07-18, you wrote:
- >My v4 ubitx has low audio if I try to use a speaker, with
headphones it is reasonable.
Raj vu2zap