Hi Fred,

Was the 1st for me. Heath SB's were the poor mans Collins and Collins had a lot of innovations.

73,
Bob
K2TK

On 2/7/2015 4:18 PM, Fred Jensen wrote:
Ummmm ... I think Art Collins might have beat Heath to that with the KWM-2 and
external VFO, sometime around 1959, followed by the S-Line.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
- www.cqp.org

On 2/7/2015 11:55 AM, Bob wrote:

1st split capable RX-TX was Heath SB300-SB400 pair.


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