Number of items: 0 0,00 €
  1. Home
  2. Autobias control
  3. Modules adaptive bias control
  4. Modules for to optimize bias with an supply of bias AB-D-MKIII

Automatic bias control module for DYNACO MKIII

Automatic optimize bias control module for four triode output stages or four pentode push-pull (PP) amplifiers.

click to enlarge
Automatic bias control module for DYNACO MKIII TES
Automatic bias control module for DYNACO MKIII TES
pc
code:kopie kopie
Manufacturer:TES
Price: 56,00 €
Availability:In stock
Autobias control - Modules adaptive bias control
The model AB-D-MKIII auto bias module is designed to fit the Dynaco MKIII amp chassis.
It optimizes the bias for two triode or pentode output tubes in Push-Push (PP) amplifiers that have their own negative bias supply circuit.
 
Suitable for class A, AB, or B tube amplifiers.
 
The AB-D-MKIII dynamically controls the bias in two tubes.
 
The module automatically optimizes the bias settings and maintains a strict symmetry of currents through both tube branches in the output stage. It will also stop any DC current flowing through the output transformers, all with the minimum of current loading on the anode of a tube. 
DC current saturates an output transformer which results in increased low frequency distortions.
 
The bias level is kept at the preset value irrespective of the input signal.
 
This module may be powered by the filament supply of an amp, with a range from 6.3V to 12.6V AC.
It is important to note that the AB-D-MKIII MUST use an isolation transformer, as the Dynaco MKIII's filament supply is referenced to ground. We sell this isolation transformer as a separate unit.
 

 

Table of resistance values of the resistor when replacing the trimmer on the AB module with a fixed resistor:

 


Goods of the same category - Automatic bias control module for DYNACO MKIII

Automatic bias control module for DYNACO ST70, AB-Q-ST70-ST120

Automatic optimize bias control module for four triode output stages or four pentode push-pull (PP) amplifiers INSTALLATION AND USER MANUAL FOR THE AB-Q-ST70-ST120 AUTO BIAS MODULE Download the PDF version Introduction: This module has been designed ...

Module AB-Oi for 8 tubes, PP & PPP amps, with a 6.3VAC isolation transformer for use in amps where the 6.3VAC filament supply is referenced to ground. Also requires bias supply from the amps circuit.

Automatic optimize bias control module for eight triode output stages or eight pentode push-pull (PP) amplifiers, 100 x 57 mm. The model AB-Oi auto bias module is designed to optimize the bias for eight triode or pentode output tubes in Push-Push ...

Automatic bias control module for DYNACO ST70, AB-Qi-ST70-ST120 v2.0 with isolation transformer

Automatic optimize bias control module for four triode output stages or four pentode push-pull (PP) amplifiers INSTALLATION AND USER MANUAL FOR THE AB-Qi-ST70-ST120 AUTO BIAS MODULE Download the PDF version Introduction: This module has been ...

Module AB-Qi for 4 tubes, PP & PPP amps, with a 6.3VAC isolation transformer for use in amps where the 6.3VAC filament supply is referenced to ground. Also requires bias supply from the amps circuit.

Automatic optimize bias control module for four triode output stages or four pentode push-pull (PP) amplifiers, 123x50x18 mm (5,1"x2.1"x 0.7"). The model AB-Qi auto bias module is designed to optimize the bias for four triode or pentode output tubes ...

AB-Di-MK IV - Automatic bias control module for DYNACO MKIV MKIII with isolation transformer

Automatic optimize bias control module for four triode output stages or four pentode push-pull (PP) amplifiers with isolation transformer. The model AB-Di-MKIV MKIII auto bias module is designed to fit the Dynaco MKIV MKIII amp chassis. It optimizes ...

Module AB-Di for 2 tubes, PP & PPP amps, with a 6.3VAC isolation transformer for use in amps where the 6.3VAC filament supply is referenced to ground. Also requires bias supply from the amps circuit.

Automatic optimize bias control module for two triode output stages or four pentode push-pull (PP) amplifiers, 88 x 50 mm. The model AB-Di auto bias module is designed to optimize the bias for two triode or pentode output tubes in Push-Push (PP) or ...

Automatic bias control module for DYNACO M125, AB-Qi-M125 v2.0 with isolation transformer

Automatic optimize bias control module for four triode output stages or four pentode push-pull (PP) amplifiers. INATALLATION AND USER MANUAL FOR THE AB-Qi-M125 AUTO BIAS MODULE Download the PDF version Introduction: This module has been designed to ...

Module AB-D for 2 tubes, PP & PPP & Single Ended amps, requires 6.3VAC & bias supply from the amps circuit. Not suitable where the 6.3VAC filament supply is referenced to ground, use the ABF-Q below.

Automatic opimize bias control AB-D The model AB-D auto bias module is designed to optimize the bias for two triode or pentode output tubes in Push-Push (PP) amplifiers that have their own negative bias supply circuit.    Suitable for class A, AB, ...

Module AB-Q for 4 tubes, PP & PPP & Single Ended amps, requires 6.3VAC & bias supply from the amps circuit. Not suitable where the 6.3VAC filament supply is referenced to ground, use the ABF-Q below.

Automatic optimize bias control module for four triode output stages or four pentode push-pull (PP) amplifiers, 100 x 57 mm. Modules for to optimize bias for four triode or pentode output stages output stages push-pull (PP) amplifiers Designed for ...

Do you need advice? Automatic bias control module for DYNACO MKIII TES

Name, surname, company
e-mail
Phone
Your inquiry
     More information
I agree to the processing of personal data for the processing of my query




Send link to a friend

Your name
e-mail
Email your friend
Enter the code from the image antispam
Up | Print this page

We use cookies. If you continue without changing your settings, we’ll assume that you are happy to receive all cookies on the Aljancic website.   More information