[Heathkit] Re-tubing an SB220
Ernie Piche N1SW
n1sw at cox.net
Tue Sep 11 06:40:50 EDT 2007
Ernie Piche N1SW wrote:
> Well I have now finished my 220 upgrade. I installed the external
> transformer and all the internal parasitic stuff along with other
> modifications. It is working fine but still not getting full output
> so I guess it is time to replace the 3-500 tubes. I am looking for
> recommendations on who's tubes to buy and what experience does anyone
> have with mail order tubes.
>
> Thanks
> Ernie
> N1SW
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Thanks all for the information it is greatly appreciated.
73
Ernie
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