01-04-2014, 03:23 PM
ok you protect with one 115v clamping voltage with a Varistors coming into the primary radio transformer. On the secondary 6.3Vac can you put another Varistors clamping voltage 6.3vac. Then another Varistors to the secondary windings supplying the radio. Because I have read that you would want filaments up first before the rest of the tube if it was possible. So is there away to do this with Varistors. Or you said you can do this with out them and only use the Varistors for protection the 115v into the main windings.
1. Is it important to have the filaments on before the rest of the tube.
A. What is the best way to make this happen?
2. Varistors used with a 115vac clamping to protect before the main windings
A. are there rules I should follow before the fuse next to the switch only so far from the transformer etc?
B. What would be the best Varistors to use?
3. a zeiner (6.3vac 12.6) for the filaments so they never go above.
1. Is it important to have the filaments on before the rest of the tube.
A. What is the best way to make this happen?
2. Varistors used with a 115vac clamping to protect before the main windings
A. are there rules I should follow before the fuse next to the switch only so far from the transformer etc?
B. What would be the best Varistors to use?
3. a zeiner (6.3vac 12.6) for the filaments so they never go above.
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