[Collins] KWM-380 Output Transistors

[Gerald]

On Thu, 2005-10-06 at 08:53 -0300, David Knepper wrote:
> FYI - I purchased from RF Parts (www.rfparts.com) or 800-737-2787, the
> following:
> 
> Matched pair of output transistors - 2SC2879 (Toshiba) for $42.00 and
> Two 1N5711 in the directional coupler for $1.75 each or $3.50
> 
> The output transistors were tested by RF Parts and had a 90 watt each output
> rating.
> 
> Shipping was $10.00 from California for a total of $55.50.  This was the
> best price that I found on replacement transistors for the KWM-380.
> 
> I had heard that the 1N5711 were not readily available but RF Parts has
> them.
> 
> Thought I would pass this information on.
> 
> David, W3ST
> Publisher of the Collins Journal
> Secretary to the Collins Radio Association
> To Join the CRA go to www.collinsra.com
> Nets:  3805 Khz, Monday/Wednesdays 8 PM EST and 14250 Khz Saturday, 12 Noon
> EST
> 
1N5711 is about the most common RF detector silicon Schottky around. A
commodity part, probably no longer made by HP (Agilent these days). 30
years ago it was exotic. Not now unless its been forgotten. Which a
later post says its almost as common as dirt with multiple sources.
-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer