Hammond 1650PP Replaced Potted Tube Output Transformer

The 1650PP is listed by the manufacturer with the short description "Replaced with 1650PAP". This page is kept as a reference for buyers searching the older part number, so that existing bills of materials, service notes and parts lists can be cross-referenced to the current part.

This part appears under the 1650P Series, "Tube Output (50 - 100 Watts)", a family of push-pull hi-fi potted output transformers. The series is described as designed for push-pull tube output circuits, enclosed in a drawn steel case that is completely potted in epoxy, finished in black powder paint to match the 300P series power transformers, and rated for 30 Hz to 30 kHz at full rated power (+/- 1 dB max., ref. 1 kHz) minimum. The part itself is not included in the current series ordering table, so its individual electrical ratings and dimensions are not given in the manufacturer data.

What the data does record for the 1650PP is its identifiers and compliance: UPC 623980301839, UNSPSC 39121301, a shipping weight of 12 lbs (5.44 kg), and RoHS and REACH compliance.

If you are replacing or specifying this part, the manufacturer's named replacement is the 1650PAP. Check the 1650PAP listing for its electrical ratings, lead arrangement and mounting details before ordering, and confirm the fit against your chassis layout.