Unbranded EL509 Vacuum Tube (Lot of 2) 134913825565 and the start LED starts

and the start LED starts blinking rapidly and the fan sound stops

Manufacturer SMC Part Number SY3120-5LZD-C4 SKU 19-26037 Ref 23-83169

Manufacturer Dell Model Number M620 SKU 19-41733 Ref 23-64888

Manufacturer SMC Model Number MXQ20-30 SKU 19-51480 Ref 23-72331

Digital Display Control Unit CP-8831-DCU-S and 1x CP-8831 mic

Unbranded EL509 Vacuum Tube (Lot of 2) 134913825565 and the start LED startsCondition Used Description Item was recently removed from working service and is in excellent working order. Item will come with a 30 Day Warranty. Cosmetically in good condition showing minor scuffs scratches blemishes from previous use. Includes Vacuum Tube (Lot of 2) as pictured. No additional items or accessories are included. Photos are of the actual unit for sale. Inventory is on hand and ready to ship. Please feel free to message us with any