Post by mark4 on Nov 7, 2010 10:13:38 GMT -5
Some people like the sound of the Mark III receiver audio better than the Mark IV. I have owned many brownings. One of the things that determines the sound is the speaker. I have found replacing these here and there the response varied from speaker to speaker. Another factor is the Mark III uses a 6AL5 tube and the Mark IV uses 2 solid state diodes. The circuitry is identical here in the radio. I hot wired a 6AL5 in a Mark IV in place of the diodes and the sound was a little different. Don't think I will leave it in there but it was fun just for testing purposes.
The 6AL5 is nothing more than a dual diode tube.
I am wondering why browning chose the 6AL5 over the diodes used in the Mark IV? Maybe the spec'd better. Maybe those diodes were not available when the Mark III was first produced?
Many browning owners think the radios have vast differences in design on the receiver end. This is not true. Other than the power supply and mixing crystals the design is almost identical.
Except one is hard wired and the other is circuit board construction.
The 6AL5 is nothing more than a dual diode tube.
I am wondering why browning chose the 6AL5 over the diodes used in the Mark IV? Maybe the spec'd better. Maybe those diodes were not available when the Mark III was first produced?
Many browning owners think the radios have vast differences in design on the receiver end. This is not true. Other than the power supply and mixing crystals the design is almost identical.
Except one is hard wired and the other is circuit board construction.