Lionel Model 4550 HO Scale Hobby Transformer -tested

Lionel HO Gauge #4550 Hobby Transformer - Tested and Works Great

Toy Train Lionel Transformer Model 4550 AC/DC Power Supply O & HO Scale Track

Lionel Model 4550 HO / N Scale Hobby Transformer CLEAN TESTED

Vintage Lionel Model 4550 Hobby Transformer HO DC AC Power Supply 1970s Works

Vintage Lionel Train HO Electric Power Pack 4550 Transformer

Lionel HO Hobby Train Transformer Model 4550 Output 18 VDC, 19 VAC, 6W - WORKS!!

Vintage Lionel Train HO Electric Power Pack 5-4550 Transformer - Untested