Guillermo -
I tried to send you a direct message last night, but was refused by your ISP. Do you have another
address that will work?
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>
GGLL wrote:
Hello Garey, my name is Guillermo, LU8EYW/W in Puerto Madryn, Chubut
province, Argentina.
I'm troubleshooting my R-4B receiver and searching the schematic, the model
which has the OB2
regulator voltage included (V11) and a PCB board not included in the first
models (or at least,
different as I'm seeing in various different schematics already downloaded). In
my receiver, this
regulator tube is located between front panel and V2.
So far, I've had no luck yet, but found and downloaded three
different copies, no one of these has the OB2 regulator tube.
Furthermore, I've supposed my R-4b to be a later serial number model, but
looking photographs
at Drake virtual museum, I see one which has a larger serial number than mine,
but no OB2!
(looking in detail, you can see just printed "OB2" onto the chassis, only).
Can you enlighten me about which version of this receiver had this upgrade?.
Many thanks in advance
Regards
Guillermo - LU8EYW/W.
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