jnm_diyer wrote:Out of curiosity, has anyone ever thought of using an HY69 as the output tube in this circuit? One would have to supply 6 volts DC to the filament and alter the biasing since there is no cathode in that DHP.
Admittedly, the modification is beyond my current technical capability. However, if anyone can point me to a resource to accomplish such a feat, I would be interested in giving that circuit a try.
I am thinking if it would not be feasible to use the 1625.
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