EF41-FB0-41 by PARKER - Buy or Repair at Radwell - Radwell.com
HLC
EF41 / 6CJ5 Telefunken Vacuum Pentode, New Old Stock
Shimano Ef41 3X7 Shift/Brake Lever | Jenson USA
Shimano Tourney SL EF41 EF41 Shifter 3x7 Speed 3 Speed 7 Speed For MTB Bike Left Right Shift Lever Mountain Bicycle Trigger|Bicycle Derailleur| - AliExpress
EF41 @ The Valve Museum
EF41 Pentode Datasheet pdf - Pentode. Equivalent, Catalog
maintenance - How to open the top cover of a Shimano Tourney ST EF 41? - Bicycles Stack Exchange
Can a Shimano ST-EF41 EZ fire shifter be serviced? - YouTube