[TenTec] When did Ten-tec switch to Schottky diode ring mixers?

Kevin Purcell kevinpurcell at pobox.com
Sun May 20 17:13:49 EDT 2007

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

Kevin Purcell
kevinpurcell at pobox.com

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