[Amps] NCL-2000 retube

[Radio WC6W]

Hi Paul,
 Hmmm ...

 The physics of such a transplant would be problematic. The 4CX1500B is quite a bit larger in all dimensions than the original parts. 

 You might consider a pair of 4CX350A's. A socket change would be required. 

 The pair, with the heaters run in series, might just work with the existing heater transformer; or a small series R may be required to set the proper voltage.

 I don't know, here in the inflationary 3rd millennium, whether 4CX350A's are any more available that the old 8122's.

73 & good afternoon,
 Marv WC6W 

     On Sunday, August 14, 2022, 05:22:22 AM PDT, Paul Decker <kg7hf at comcast.net> wrote:  
 
 I have an NCL-2000 that both 8122's are bad.  I've also got a pair of 4cx1500b and sockets.

On paper, it looks like a single 4cx1500b would be a heater transformer.

Has anyone tried this?  comments, thoughts?


Thanks,
Paul
KG7HF
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