106R

Overview

The Hammond Manufacturing 106R is a through-hole audio transformer designed for push-pull tube output circuits. It features a primary impedance of 10k ohms center-tapped and a secondary impedance of 1.5k ohms center-tapped. The unit operates within a frequency range starting at 300 Hz and has a frequency response of -1dB. Electrical characteristics include a primary DC resistance of 700 ohms and a secondary DC resistance of unspecified value in provided data. The transformer is epoxy potted, provides 200V isolation, and handles power levels up to 500mW. Physical dimensions are 1.315 inches in length, 0.93 inches in width, and 0.92 inches in height.

Feature Summary

• Designed specifically for general-purpose use and replacement in push-pull tube output circuits
• Epoxy potted construction for durability and environmental protection
• Center-tapped primary and secondary windings for balanced signal handling

Applications

• Push-pull tube audio output circuits
• Audio equipment repair and restoration
• General-purpose audio signal transformation

Procurement Notes

Verify the specific datasheet for complete secondary DC resistance values as source data may be incomplete. Confirm mechanical fitment against existing chassis mounting holes given the 1.315 x 0.93 inch footprint. Ensure compatibility with tube socket pinouts before installation. Check RoHS compliance status if required by local regulations.

Selection Notes

Select this component when replacing transformers in vintage or modern tube-based audio amplifiers requiring 10k CT primary and 1.5k CT secondary impedances. Consider the physical size constraints of the enclosure. Evaluate thermal management needs as the device is rated for 500mW power handling. Compare against other 106 series variants if different impedance ratios are needed.

Part Context

The 106R belongs to the Hammond 106 series of audio transformers, which are widely used in audio applications. This series includes various impedance configurations tailored for different tube amplifier designs. The 106R specifically targets high-impedance primary requirements common in certain tube output stages, distinguishing it from lower impedance counterparts like the 106E or 106Q.

FAQ

What is the primary impedance configuration of the 106R?

The primary impedance is 10k ohms with a center tap (10k CT).

Is the 106R suitable for solid-state circuits?

It is explicitly designed for push-pull tube output circuits; suitability for solid-state depends on specific circuit impedance matching.