Glenn -
ALL T-4X(any) transmitters will mix and match with ALL R-4(any) receivers.
That said, the T-4X has one flaw that may or may not be important to you
if you plan to work SSB. The T-4X has four-pole crystal filters, which
results in marginal, at best, signal purity on SSB. Carrier suppression
is less than good, and 3rd order IMD is also poor, but this is ONLY on
SSB. CW is fine. If you intend to use an amplifier, or live close to
another active ham or two, I would strongly advise against the T-4X for
that reason.
The T-4XB or C will work just fine however. There are minor cosmetic
differences between the 'X and the 'XB, primarily in the MAIN TUNING
knob and skirt, and in the panel printing "above the belt line". The
knob and skirt could be replaced on either to make them match. Many
people put the B-Line skirt on the R-4/A because it's sloped surface was
MUCH easier to read than the flat one used on the earlier models.
Actually I don't think you would have a problem swapping the earlier set
from the receiver for a B-Line knob and skirt with someone that wanted
to return an earlier receiver to "stock"! :-)
The only other consideration, depending upon how 'late' your R-4A is,
(does it have a letter, R, G, B or Y,) at the end of the serial number?
If it does have a letter, ideally you would look for a T-4XB with the
SAME letter at the end of its serial number. This is of concern only if
you plan to transceive on SSB, and is not a major problem if you don't
get lucky with the T-4XB and get the same letter! See the article at
<http://www.wb4hfn.com/DRAKE/DrakeArticles/CrystalCodes.htm>
if interested further.
Don't forget you will also need an AC-4 power supply to use with
whatever T-4X(any) transmitter you get. The AC-3 will also work, but is
not quite as convenient to upgrade with the AC-4R kit from The Heathkit
Shop. This should be done with just about any Drake power supply you
find today.
Welcome to the list, and don't hesitate to ask questions as you go along!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line& TR-4/C Service Supplement CDs
<www.k4oah.com>
Glenn Derbyshire wrote:
Hello,
I just joined Drake list because my Dad at 88 years old let me have
his old Drake R-4A Receiver.
25 years ago when I was a teen We took Ham radio classes learning code
together.
Now that I’m more mature I want to carry on in my Dad ‘s footsteps.
My Question is Now having a R-4A (mint ) what transmitter would work
the best.
T-4X transmitter (mentioned in R-4A Manual)
T-4XB (solid state mates with R-4B solid state)
Will a T-4XB transmitter work with a R-4A and what would the Plus or
Minuses compared to
the R-4A ( I have this Unit Already) and a T-4X.
Thanks in advance for your comments and opinions
Regards,
Drakelist mailing list
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