Grant -
No real 'adapter' needed. A piece of coax, RG-58 / 59, or low capacity
microphone cable, as short as possible. The receiver end center
conductor goes into any of the ACCESSORY XTAL sockets on the back
panel. It needs to go into the pins that are all tied together with a
piece of bus wire. Then the shield needs to go to chassis ground
nearby, NOT the 'other' crystal pin. Then switch to ANY crystal switch
except for NORM. The cable should be disconnected at the receiver end
when crystals are being used, although there is no longer any reason to
use crystals!
By the way, the FS-4 will be 10 kHz off frequency for ONE of the two
receivers. The "B" and other 4 Series Ham receivers need an injection
frequency that is 11.1 MHz above the bottom end of the desired band,
while the SPR-4 requires 11.09 MHz. The crystal in the FS-4 must be
changed to the 'correct' one for an accurate dial reading, i.e., 9.6 MHz
for the R-4 series, and 9.59 for the SPR-4.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
grant vyborny wrote:
Would like to find the adapter for the FS-4 or any info on how to
fabricate one - for use with the "B" line and the SPR-4
thanks, Grant/KT6L
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