Note
QST, Jun 1958, p. 170.
CQ, Aug 1958, p. 122.
The 200A was never found in advertising, but was referenced in the P&H ad in CQ, Aug 1959, p. 96.
This is the first example of a transmitting converter found in QST.
Requires PR-600A matching power supply.
Review: QST, Sep 1959, p. 47.