We have a winner! Actually three winners George K3GP, Duane, N9DG and
Don, NN8B.
Yes, the MBD-101 is a discrete schottky diode.
So the Cosair was the first Ten-tec radio to use a schottky diode
ring mixer.
By 1986 TT had moved to quads rather than discrete schottky diodes in
the Argosy 2 and Corsair 2.
Many thanks to all for this info.
Why? That'll be another post!
On May 20, 2007, at 1:11 PM, George K3GP wrote:
Kevin Purcell wrote:
Excellent. Thanks Steve for that data point. And Don, NN8B, who
replied too. Both have the Corsair 2.
So they had switched by 1986.
Anyone with an original Corsair (Corsair 1, so to speak)? I think
that might be the rig they made the switch to schottky diodes.
It would just take a second to check the schematic in the manual
on the RF Mixer board :-)
My original corsair manual lists the mixer diodes on the RF mixer
board (D9 thru D12) as MBD-101 which checks out to be 7v low noise
shottky diodes.
333-3333
George K3GP
--
N7WIM / G8UDP
Kevin Purcell
kevinpurcell@pobox.com
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