[Amps] 3-400Z Tube Replacement ideas

[DF3KV@aol.com (DF3KV@aol.com)]

Hi Bill,

You could also use tetrodes connected in high=B5 configuration:

4-250 with less power
4-400
RS1002
QB3.5/750 with less power
QB4/1100

Strap control-grid with screen and you are ready, gain will be=20
a bit lower but you will expect about 10-12db  depending on HT value


73=20

Peter



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