[NJARC] Tube & Spkr question

[N3IBX]

Hello Steve,
                     You can run a 01A at a higher filament voltage than it's recommended 5.0vdc, but to do so will shorten it's lifespan. I would experiment with different dropping resistors until you find something that will put you in the neighborhood of 5.0vdc or so. 
 
A RCA 100 or 100A speaker should work well with your Stewart-Warner model 305. I'm not sure on the A-K E3 though. Possibly someone else on the reflector may know. If I can find out more information I'll re-post it.
 
Cheers & Beers,
                             Joe Cro N3IBX
 


On 04/15/13, sgt88 at atlanticbb.net wrote:

Just remember
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What steady/constant max filiment voltage can a 201/301 take?..is 6.6 vdc 
OK?..or should I put in a voltage dropping resistor?..to get 5 vdc?

Can an RCA 100A and/or Atwater E3 speaker be used with a Stewart Warner 305?

Tnx,
Steve T.
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