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All regulators are tested before posting.

This is a drop in replacement for the LM7805 regulator, the face of the TSR 1-2450 with the writing corresponds to the front of the LM7805 with writing and installed as in the photo.

The TSR 1-2450 TRACOPOWER Through Hole Switching Regulator is a vintage voltage regulator unit produced by TracoPower. Specifically designed for use in the ZX Spectrum, ZX80/ZX81 and other vintage computers to replace the LM7805 5 volt regulator negating the need for a heatsink, this switching regulator provides a stable power supply for the system. With its reliable brand reputation and optimal design, this unit is a crucial component for maintaining the functionality and performance of vintage computing systems.

Isolation:	Non-Isolated
Number of Outputs:	1 Output
Input Voltage, Nominal:	24 V
Input Voltage - Min:	6.5 V
Input Voltage - Max:	36 V
Output Voltage-Channel 1:	5 V
Output Current-Channel 1:	1 A
Package/Case:	SIP-3
Length:	11.7 mm (0.461 in)
Width:	7.55 mm (0.297 in)
Height:	10.1 mm (0.398 in)
Industry:	Industrial
Series:	TSR 1
Brand:	TRACO Power
Case Style:	Encapsulated
Dimensions:	7.55 mm x 10.1 mm x 11.7 mm
Maximum Operating Temperature:	+ 85 C
Minimum Operating Temperature:	- 40 C
Mounting Style:	Through Hole