[Amps] Drake L4 tube replacement
Jason Buchanan
jsb at digistar.com
Sat Oct 16 13:53:21 EDT 2004
Jan Erik Holm wrote:
> Yes! Just like when you run out of gas in your
> car, just put new in.
Well, the consensus is that I need to find new chimneys to use the
3-500Z on account of the 3-400Z is a shorter tube.
There appear to be 3 different chimneys - SK 406 (4.75" tall), SK 406A
(4.25" tall) and SK 406B (4" tall). Sounds like the 3-500Z chimney in
use with the L-4B would be the 4.75" SK 406 chimney - the question
becomes whether the 4.75" chimney will fit in the older L-4. I haven't
seen any 3-400Z tubes for sale anywhere so it seems that the 3-500ZG
types that are available today are the only option for replacement, and
they require the tall 4.75" chimney. "Cooling" is good so I don't want
to skimp just to get by with the wrong sized chimney.
Ron W2CQM has piqued my interest with the 8877 retrofit but my uncle and
grandfather would tar and feather me for hacking this L-4 - this amp
part of the family!! hi hi
73 Jason N1SU
More information about the Amps
mailing list