What cable can be used instead of the original Drake cable for the FS-4 - R4A?
Can any crystal socket be used?
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There are a couple of Testor's or ModelMaker paints that come very close.
The Dark Gray is #1791 'Navy Gray', and the Light Gray is #1794 'Agressor Gray'. They can of
course be darkened or lightened to allow for aging by adding a little black or white if necessary.
The secret to 'touch-up'
Neil -
Needs to be low capacity cable, as short as possible, (12-18). RG-62A/U, RG-59/U, Belden 8421 Mic
cable, etc. 14 - 18 pF/ft.
The center conductor needs to be plugged into ANY crystal socket, to the pin that is 'common' to all
the others. Typically the bottom pin of each crystal
Lee -
It does take some practice to get it perfect. Novus #2 is NOT the polish, but a very fine
abrasive. Brasso polish is another good choice. The idea is to not 'have' a bump, either a very
fine artist's brush, or even Q-Tip to kind of 'blot' the paint on, multiple very, very thin coats.
Has anyone used their L4B as an amplifier being driven by a 30-40W output plate
modulated rig (ie AF-67 etc). Your comments on results, power output etc will
be appreciated. The L-4B normally follows a C-line; this is just a little
extra choir for it.
Thank you.
Joe
I too would be interested in the L4B's performance/use on AM. I may use the
DX-60 or T4XC as the driver, but same question, hi.
73,
Don, WB5HAK___
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At one time, there seemed to be great interest in the L-4B because it could run
1 kw input on CW, RTTY, and AM. A lot of other amps were rated at, for example
1,500 watts input on SSB but maybe only 700 or so on AM because they didn't
have power supplies, cooling, etc. for continuous duty or
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