This may be a stupid question.... If it is, I am sorry
When running a VVR, should I not bias my tubes hotter? In reality, during actual playing conditions (VVR reducing B+), the tubes would be operating too cold??
Should I calculate the bias with the VVR adjusted voltages?
Tube Bias while using VVR
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Tube Bias while using VVR
If it sounds good, it is good! Trust your ears
Re: Tube Bias while using VVR
Critical question: fixed or cathode biased?
If cathode, no worries. The whole system (except heaters which are not scaled) scales organically--relative bias is maintained.
For fixed bias, the bias voltage should also vary--the London Power circuit scales the bias voltage also. I have never installed VVR for fixed bias, so I'm just repeating what I've read.
If cathode, no worries. The whole system (except heaters which are not scaled) scales organically--relative bias is maintained.
For fixed bias, the bias voltage should also vary--the London Power circuit scales the bias voltage also. I have never installed VVR for fixed bias, so I'm just repeating what I've read.
I build and repair tube amps. http://amps.monkeymatic.com
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- Posts: 701
- Joined: Mon Dec 01, 2014 8:48 am
- Location: Durban South Africa
Re: Tube Bias while using VVR
Fixed Bias. Come to think of it, I believe the HALL VVR3 adjusts bias while scaling???? If so, just another stupid post
I need to think and research before posting!!
I need to think and research before posting!!
If it sounds good, it is good! Trust your ears
-
- Posts: 701
- Joined: Mon Dec 01, 2014 8:48 am
- Location: Durban South Africa
Re: Tube Bias while using VVR
Fixed Bias. Come to think of it, I believe the HALL VVR3 adjusts bias while scaling???? If so, just another stupid post
I need to think and research before posting!!
I need to think and research before posting!!
If it sounds good, it is good! Trust your ears