Brand Lowe
Type Sync Detector
Supported Modes AM
Model HF-225
Band HF
MPN D225

Check the listing for details. NOS - D225 Optional AM Sync Dectector For Lowe HF-225 Shortwave Radio Receiver. Condition: New. Listed at 249.95 USD. The D225 board is very scarce and basically "unobtainium". As you can see in looking at the RF cable lead, this board was obtained from the factory and never installed. You can read a copy of the note that was included with the board and the squelch pot.

$124.98
$249.95