I've always questioned Drake's decision to use the 6HF5 in that
transmitter. Sweep tubes made some sense for SSB at the time, but a CW
transmitter meant for beginners? A 6146 would have been so much more
forgiving and reliable.
73 de W3NU
On 3/21/2013 1341, Curt Gidding wrote:
The manual suggests that the final 6HF5 be replaced with the same
manufacturer tube as
is in the xmtr. How critical is this? Is there one manufacturer that
is better? Tnx for your
reply.
Curt Gidding KC9UNL
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