OT: BB205 Varicap

From: allisonp_at_world.std.com <(allisonp_at_world.std.com)>
Date: Mon May 1 07:43:24 2000

On Sun, 30 Apr 2000, Marvin wrote:
> I am looking for a BB205 Varicap, but so far have not been able to find it
> or the data sheets. It appears to be an SOT-23 sized surface mount device. I
> would also be MOST interested in knowing what the capacitance range is for
> the given voltage range. FWIW, this is for the tuning circuit in an 80M
> Direction Finding Receiver. Thanks.

sounds like a euro part number. My guess is its in the 40-120pf range.
As a hack try a 1n4005 rectifier, they work ok as varicaps. Also the
collector base junction reverse biased of a 2n2219[and many other SI
transistors] is usable for that.

Allison
Received on Mon May 01 2000 - 07:43:24 BST