I found a few manuals that may have a similar model number but none of them contain the Koss Receiver, you may want to try a few random receiver numbers and see if anything works, these are all the universal codes i could kind for koss receivers: 255,424,495,624,636,744
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I found a few manuals that may have a similar model number but none of them contain the Koss Receiver, you may want to try a few random receiver numbers and see if anything works, these are all the universal codes i could kind for koss receivers:
255,424,495,624,636,744